Mathematics Middle School

Help please!!!!! I'll give brainliest!

Answers

Answer 1

Answer:

#1. Yes, it is a right triangle

Step-by-step explanation:

Related Questions

I NEED HELP PLZ!!
Runner 3 does not get a head start. He runs 750 meters every 3 minutes. Write an equation to represent Runner 3’s distance y for x minutes.

A. y=3x+250
B. 750x+3
C. 250x+3
D. 250x

Answers

The answer is B why because

Answer:

I think it is D!

Step-by-step explanation:

I'm not exactly for sure so if I'm wrong I'm sorry! But when writing an equation they don't have + or - and my conclusion is if you divide 750 by 3 it equal out to be 250 per minute. But I'm not for sure:(

HELP 15 POINT AND WILL MARK BRIANLYEST. Emma said that when you multiply three negative decimals, the product will be positive.
Use these numbers to answer the questions:
-2.5, -3.8, -2.7, 4.5

Part A: Is Emma's statement always true, sometimes true, or always false? Write two equations to support your answer. (10 points)

Part B: Write a rule for multiplying three negative decimals. (5 points)

Part C: Emma changed her statement to say that when you multiply two negative decimals and a positive decimal, the product will be positive. Is Emma's new statement always true, sometimes true, or always false? Write two equations to support your answer. (10 points)

Answers

Answer:

A)Her statement is not correct because a negative times a negative is a positive but if you times it by negative again then it will be negative again not positive

B)(–3) – (–5) = (–3) + 5 = 2

c)Yes she is correct

5 – (–3) = 5 + 3 = 8

(–3) – (–5) = (–3) + 5 = 2

Step-by-step explanation:

answer ( A
explanation: none

1 : (+61)×(-28)=

2:(-36)÷(+6)=
3:(+87)+(+15)=
4: (+2)-(+96)=
5:(+60)÷(-3)=
6 :(+15)-(20)=
(+2)-(+7=
(+65)×(-20)=

Answers

1) -1,708
2) -6
3) 102
4) -94
5) -20
6) -5
7) -5
8) -1,300

Hope this helps!

Activity
Callie was billed $416.48 for car repairs. She will pay the service center in 4 equal monthly installments from her bank account. What is the net change in her bank account balance after each monthly payment? Complete the steps below to solve this problem and others like it.
Part B
Which rational number represents the number of months that Callie has to pay off the bill? What does the sign on the number mean?

Part C
Write an expression to represent the net change to Callie’s account balance each month.

Part D
Simplify the expression in part C to find the net change to Callie’s account balance each month.
Part E
After paying the car service center in full, Callie realizes that she should start saving money each month for her future. She decides to invest the same monthly amount that she was paying the service center in a retirement fund. If she invests in the retirement fund for one year, what will the net change in her account balance be during that time

Part F
What is the sign of the net change in part E? Why does the sign make sense in this situation?

Answers

Part A The net change to Callie’s bank account is -$416.48. The negative sign indicates money leaving Callie’s account.

Part B Callie has 4 months to pay off the bill. The rational number is +4. The sign is positive because it represents a quantity of something, in this case, months.

Part C The amount of the bill, -$416.48, will be deducted from Callie’s account in equal amounts over 4 months. So, the expression representing the net change in her account balance each month is -416.48/4 .

Part D -416.48/4=104.12

Part E The monthly withdrawal from Callie’s account continues to be -$104.12. After 1 year (12 months), the net change to her account balance will be -$104.12 × 12 = -$1,249.44.

Answer:

part a)

ANSWER: The net change to Callie’s bank account is -$416.48. The negative sign indicates money leaving Callie’s account.

part b)

ANSWER: Callie has 4 months to pay off the bill. The rational number is +4. The sign is positive because it represents a quantity of something, in this case, months.

part c)

 ANSWER: The amount of the bill, -$416.48, will be deducted from Callie’s account in equal amounts over 4 months. So, the expression representing the net change in her account balance each month is -416.48/4 .

part d)

ANSWER: -416.48 / 4= -$104.12

part e)

ANSWER: The monthly withdrawal from Callie’s account continues to be -$104.12. After 1 year (12 months), the net change to her account balance will be -$104.12 × 12 = -$1,249.44.

part f)

ANSWER: The net change is -$1,249.44. The sign is negative because it represents money leaving, or being deducted from, Callie’s bank account. 

Your soccer team is holding a silent auction dinner as a fundraiser to pay for the team uniforms. The list shows all the expenses for the silent auction.

A tablet that costs $280
Soccer tickets that cost $100
A gift card that costs $20
The cost of the food is $400
The members of the soccer team will be selling tickets to the silent auction. A ticket to the silent auction includes chances to win prizes and dinner. The ticket cost is set so that 50 tickets will pay for the cost of the prizes and food

Build a function that can be used to find the total profit, f(x), the soccer team earns by selling x tickets. Show your work to build this function.

Answers

The correct answer is $900

Write the equation of the line passing through the points (-3,4) and (-4,2).
A. y = -2x + 10
B. y = 2x - 10
C. y = -2x - 10
D. y = 2x + 10

Answers

It should be y=2x+10. Id use Desmos for these problems it helps

y= 2x + 10 (D) is the correct answer.

plz help me and plz show work

Answers

Answer:

21. The slope is 50.

22. 0

23. y=50x

24. $2600

Step-by-step explanation:

21. The slope of the line is 50. Slope is defined as "rise over run". As the line increases, each segment moves up the y-axis by $50, and to the right on the x-axis 1 segment. (Work: 50 divided by 1)

22. The y-intercept is (0, 0), or simply 0. If you look at the graph you can see that the line crosses the y-axis at the origin. This makes the y-intercept equal to 0.

23. The slope tells you that the student makes $50 every week. The y-intercept is 0. Using the formula y=mx+b, an appropriate equation would be y=50x.

24. The equation found in problem 23 can me used to determine how much a student makes (y) after "x" weeks. Substitute 52 for x to solve for y. This becomes y=50(52). This can be simplified to y=2600. This means that after 52 weeks, the student will have made $2,600.

slope is 50
explanation idek

A particular plant root grows 3.5 inches per month. How many centimeters is the plant root growing per month? (1 inch = 2.54 centimeters). (2 points)

Group of answer choices

6.04 centimeters

8.89 centimeters

1.38 centimeters

0.73 centimeters

Answers

Answer:

8.89 centimeters

Step-by-step explanation:

Answer:

8.89 centimeters

Step-by-step explanation:

In order to convert 3.5 inches to centimeters, we must use dimensional analysis.

3.5 inches x [tex]\frac{2.54 cm}{1 in} = 8.89cm[/tex]

Simply multiple 2.54 centimeters by 2.5 inches to find how many centimeters are in 3.5 inches. After doing that you will see that 3.5 inches equals 8.89 centimeters.

help me please.
(tape diagrams)

Answers

Answer:

A) 13+t =17

Step-by-step explanation:

Write 4,682.56 in expanded form.
(4 x 1000) + (6 x 100) + (8 x 10) + (2 x 1) + (5 x 0.1) + (6 x 0.01)
(4 x 1000) + (6 x 100) + (8 x 10) + (2 x 1) + (5 x 1/10) + (6 x 1/100)
4000 + 600 + 80 + 2 + 0.5 + 0.06
all of the above
will give brainliest

Answers

(4 x 1000) + (6 x 100) + (8 x 10) + (2 x 1) + (5 x0.1) + (6 x 0.01)

4000+600+80+2+0.5+0.06

Quick only 5 minutes to answer!
Question: Tyler and Kiran each started running at a constant speed at the same time. Tyler ran 4,200 meters in 30 minutes and Kiran ran 6,300 meters in 1/2 hour. Eventually, Kiran ran 1 kilometer (1000 meters) more than Tyler. How much time did it take for this to happen?
(I'll give 12 points and I'll name you brainlist.

Answers

Answer:

14 and 2/7 minutes, or 100/7 minutes

Step-by-step explanation:

To begin with, supposed the rate at which Tyler and Kiran are running are variables T and K. We can come up with the equations

30T= 4,200 and

30K= 6,300.

Where 30 is the number of minutes, multiplied by the rate at which they are running to equal the total distance ran. We can isolate the variables by dividing both sides of both equations by 30, resulting in Tyler's speed of 140 meters per minute and Kiran's speed of 210 meters per minute.

We can then plug these values into a final equation where x is the amount of time taken for Kiran to run 1 km more than Tyler

We end up with this: 210x= 140x+1000

Solve first by subtracting 140x from 210x to get 70x, and then divide both sides by 70. This isolates x and you get a final answer of 14 2/7 minutes, or 100/7 minutes

And sorry I couldn't get this to you in the 5 minutes you needed, but I hope this at least helps you understand the concept :')

It will take 14 and 2/7 minutes, or 100/7 minutes, for this to happen.

What is the equation?

The equation is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are equal.

To begin, consider Tyler and Kiran's running rates to be variables T and K. We can create the equations.

30T= 4,200 and

30K= 6,300.

Where 30 is the number of minutes multiplied by the speed of running to equal the total distance run. By dividing both sides of both equations by 30, we can isolate the variables, obtaining Tyler's speed of 140 meters per minute and Kiran's speed of 210 meters per minute.

We have to substitute the value into a final equation where x is the time it takes Kiran to run 1 km further than Tyler.

We end up with this: 210x= 140x+1000

To begin, remove 140x from 210x to get 70x, then divide both sides by 70. This isolates x, obtaining a final result of 14 2/7 minutes, or 100/7 minutes.

Thus, It will take 14 and 2/7 minutes, or 100/7 minutes, for this to happen.

Learn more about the equation here:

brainly.com/question/13947055

#SPJ2

Photos attached, please help. Brainliest will be given!

Answers

Answer:

I dont see the photo srry cant help

Step-by-step explanation:

You have not attached a photo. Mate

(Giving Brainliest) Photo is below

Answers

Answer: D

Step-by-step explanation:

Simplify the expression.
6(x+4)+1

Answers

Answer:

6 times x would be 6x and 6 times 4 is 24. the one is added on so it would 6x + 25. hope this helped

HURRY PLS!!! DUE TODAY!!!!

Answers

the form is y=mx+b so i think the answer would be y=4x+ -3

The answer would be Y=4x-3 because you find a point you go up 4 and over 1 it’s -3 because you go through-3 on the y axis

What value of x makes the equation true? 0.25x + .5x 4 3 = 0 + 5 2

Answers

answer) a
explain/ none

Suppose U = {1, 2 , 3, 4, 5} is the universal set and A = {1, 5}. What is A' ?

A. A' = {1, 2 , 3, 4, 5}
B. A' = {2 , 3, 4}
C. A' = {1, 2 , 3, 4}
D. A' = {2 , 3, 4, 5}

Answers

A will be equall to {2 3 4}

The value of the set A' for the set A{1,5} from the universal set will be A'{2,3,4}.

What is a set theory?

The area of mathematical logic known as set theory examines sets, which are essentially collections of objects. Set theory is an area of mathematics that primarily deals with objects that are pertinent to mathematics as a whole, despite the fact that any form of an object can be gathered into a set.

Given that the universal set is U = {1, 2, 3, 4, 5}, and the set A is {1,5}. The value of the set A' will be calculated as,

U = {1, 2, 3, 4, 5

A = {1,5}

A' = {2,3,4}

Therefore, the value of the set A' for the set A{1,5} from the universal set will be A'{2,3,4}.

To know more about set theory follow

https://brainly.com/question/13458417

#SPJ2

A pair of parallel lines is cut by a transversal. What are the measures of the two marked angles?
CHOICES

40 degrees and 40 degrees

40 degrees and 140 degrees

65 degrees and 115 degrees

75 degrees and 105 degrees

Answers

Answer:

Let us mark the points R and S on line p, T and U on line q, A and B on line l and C and D on line m.

Suppose the lines p and q intersect the line l at K and L respectively and line m at N and M respectively.

Since, AB is a straight line and ray KN stands on it, then

∠NKL + ∠NKA = 180∘ (Angles in a linear pair)

⇒110∘ + a = 180∘

⇒a = 180∘ − 110∘ = 70∘

Since, line p || line q and line l is a transversal intersecting them at K and L, then

∠TLB = ∠NKA (Alternate exterior angles)

⇒b = a

⇒b = 70∘

Since, line p || line q and line m is a transversal intersecting them at N and M, then

∠CNK = ∠NML (Corresponding angles)

⇒c = 115∘

Since, CD is a straight line and ray ML stands on it, then

∠NML + ∠LMD = 180∘ (Angles in a linear pair)

⇒115∘ + d = 180∘

⇒d = 180∘ − 115∘ = 65∘

in the last election mr rosoff received 47.2% of the votes for mayor if mr rosoff received 8143 l votes how may votes were cast in the election

Answers

Answer:

Je veux juste dire que j'aime ta photo de profil, désolé je n'ai pas pu m'empêcher d'être stupide

Step-by-step explanation:

It should be around 16,286, that’s close to what it is but it’s not the answer

MathhhhhhhhhhhhhhHhhhh

Answers

Answer:

Y=15x

Step-by-step explanation:

So easiest way to do slope is to count rise over run. But this question is tricky because it’s not the same spaces in each increment.
Like the x is 1,2,3,4 and the y is 15,30,45,60 etc.

So the formula is y=mx+b
m stands for slope
b is for y intercept. That means what is the y when x is 0.

So first slope. m=y2-y1/x2-x1 or rise/run. Rise as in the y axis and run as in the x axis.

So let’s use the first 2 points. (0,0) (1,15)
15-0/1-0= 15/1= 15
So m=15

For b, when x is zero, y is also zero. So you would just leave that part out. I mean I guess you can put a +0 but it’s unnecessary.

So y=15x

Ps. You can also try diff points for m. 30-15/2-1 = 15/1=1 ect. Even like 60-15/4-1= 45/3 = 15

Which of the following is a simplified form of the expression 5 + 4(2b – 8) + 3b?
13b-29
5b+1
9b-27
11b-27

Answers

Answer:

D.11b-27

Step-by-step explanation:

It is 11b-27,
I got -27+11b
But that’s the same

combine like a terms

9s - 3s

Answers

6s you subtract the two

Answer:6s

Step-by-step explanation:

When you combine like terms you are adding the terms that have the same coefficient (letter after number) in this case that’s 9s and -3s. When adding these two numbers together you get 6s.

plz need help and plz show work

Answers

Answer:

could u give us details on what your learning..?

Step-by-step explanation:

three ratios that are equivalent to 4:3

Answers

Answer: 8:6 ,

20:15 , 36:28

Step-by-step explanation:

Answer:

A, C, D

Step-by-step explanation:

A: 4x2 is 8 and 3x2 is 6

C: 4x5 is 20 and 3x5 is 15

D: 4x8 is 32 and 3x8 is 24

hope this helped!

p.s it would be cool if you gave me brainliest.

Your friend incorrectly claims that 1/2 divided by 1/10 = 20. Find 1/2 divided by 1/10. Then describe what may have been your friend’s error.

Answers

Answer: Your friend is wrong because they forgot that when you divide fractions you actually multiply the first fraction by the reciprocal of the other fraction. So the answer is 5.

Step-by-step explanation:

1/2 / 1/10

1/2 * 10/1

=10/2

And for your specific question the answer would be the first choice “reciprocal of the dividend by”

Your answer is 5 hope it helps

i took a pic of the question. pls help me

Answers

ANSWER: 3 MORE FEET! Hope this helps!

Mr Davis has displayed data using box and whisker plots representing the scores on the first exam in his two calculus classes. Using these plots, what can Mr Davis correctly deduce about how the two classes compare?

Answers

Answer: The first and third choices are deductions that Mr. Davis can make from the data displayed.

Step-by-step explanation: The last choice is partly true. The highjest individual score was a student in third period, but most schools consider failing to be somewhere below 60 to 67%. There are several of scores below those numbers. The dots at the left end are "outliers."

The second choice may be true, but the data is about the scores on the test, not the number of students in the classes.

Marty’s dog can run 3 miles in 20 minutes. What is the dog’s speed in miles per hour?
How do you get the answer. Can you please simplify the answer so I can understand, please

Answers

9mph because 20 minutes time 3 is one hour so multiply 3 by 3 to get 9

Answer:

Step-by-step explanation:

easy 20 20 20 each 3 m

I posted this question twice already and everybody's playing with me and answering these questions like oh I don't know the picture is blurry while I fix the picture and if you don't know don't answer the question I really need help on this thank you very much!!!!!

Which panda will weigh more at 5 weeks?
Write the equation for each panda.
( the first picture is the 1st panda and the second one is the second panda)

Answers

Answer:

The First one

Step-by-step explanation:

The table shows that the panda is gaining weight at a constant speed of 4lbs

While the graph shows the panda is gaining weight at a constant speed of 3lbs

Answer:Is the first one that would be the table.

Step-by-step explanation:Because 1+4=5+4=9+4=13+4=17+4=and in the 5th week it would be 21 lb. So, is adding by Four (4).

And in the graph is going by 3 lb. So, is the table.

Olivia is making bead bracelets for her friends. She can make 3 bracelets in 15 minutes.

Write an equation to represent the proportional relationship.

Answers

an equation to represent this relationship could be. 5mx

Answer:

1*5x=total amount made

Step-by-step explanation:

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