Mathematics College

can somebody solve this 45=x-20

Answers

Answer 1
x=65
add 20 to both sides of the equation

Related Questions

A history class is made up of 12 tenth graders and 9 eleventh graders. The tenth graders
averaged 77 on the midterm exam, and the eleventh graders averaged 91 on the midterm
exam. What was the average grade on the midterm exam for the entire class?

Answers

Answer:

They average 84%

Step-by-step explanation:

Just add 77 and 91 then divide it by 2. Hope this helps.

Answer:

83 is the correct answer if you just do it by adding 91 and 77 then diving it by 2 you would get 84 that is not what answer they are looking for. Took the test 83 is what they are looking for they want you to do the work.

Step-by-step explanation:

Tenth graders 12*77= 924

Eleventh graders 9*91= 819

924+819= 1,743

12 tenth graders and 9 eleventh graders

12+9 = 21

1,743/21 = 83

(2x-5)-(x-3
Subtract this please

Answers

Ok so rewrite the problem to 2x-5-x-3 then collect the like terms x-5-3 and the solution is x-8, I hope this helps :)

hello, I hope your having a nice day! (if not then there will be other sunny days)
but I need someone who could help me solve this problem. :)
​

Answers

Answer:

-6x^4y^4z^8

Step-by-step explanation:

The average weight of 8 marbles is 3.5 g. What is the total weight of the marbles?

Answers

Answer:

Take 8÷3.5. So the answer is aprominently 2.29.

Unit 4 linear equations homework 12

Answers

Answer:

There's no questions or worksheet attached.

Of the last 60 people who went to the cash register at a department store, 15 had BLOND hair,
17 had BLACK hair, 26 had BROWN hair, and 2 had RED hair. Determine the experimental
probability that the next person to come to the cash register has BLOND hair. (answer as
simplified fraction)

Answers

Answer:

[tex]P(Blond) = \frac{1}{4}[/tex]

Step-by-step explanation:

Given

[tex]Total = 60[/tex]

[tex]Blond = 15[/tex]

[tex]Black = 17[/tex]

[tex]Brown = 26[/tex]

[tex]Red = 2[/tex]

Required:

Determine the experimental probability of the next person having blond hair

This is calculated by dividing the number f people having blond hair with the total number of people.

i.e.

[tex]P(Blond) = \frac{Blond}{Total}[/tex]

[tex]P(Blond) = \frac{15}{60}[/tex]

Simplify

[tex]P(Blond) = \frac{1}{4}[/tex]



An airplane is currently flying at an altitude of 37,000 feet. The airplane is scheduled to land at an airport 100 miles

away. Find the average angle at which the airplane must descend for landing. Round your answer to the nearest

degree.

Answers

Answer:

4degrees

Step-by-step explanation:

Given the following

Height of the airplane = 37000feet

distance covered on landing = 100miles = 100(5280)

distance covered on landing  = 528,000feet

Using the SOH CAH TOA

sin theta = opposite/hyp

sin theta = 37000/528000

sin theta = 37/528

theta = arcsin (37/528)

theta = 4 degrees

Hence average angle at which the airplane must descend for landing is 4degrees

What is the value of x? (5 points)


Question 7 options:

1)

10

2)

15

3)

30

4)

45

Answers

What's the question?

what’s the question

Todd drank 6/8 of a 30-ounce can of juice. lila drank 1/4 as much juice as Todd did. How many
ounces did lila drink?​

Answers

Easy you divide 30 by 4 so you get 7.5. So she drank 7.5 liters

Jordan took a math test. the number of questions he got COrrect to the number of questions he got INcorrect was 8:3. if he got 9 questions incorrect, how many did he get correct ?

(i would appreciate it if u answer with a step by step explanation since i have to show my work :)

Answers

Answer:

I'm not sure if this is correct

24

Step-by-step explanation:

8:3

?:9

9÷3=3

So then you would be able to times 8 by 3 also which gives you 24

It's just a guess, sorry if it doesn't help

pls help!
I need help.
If you don't know please don't answer a guess or a silly answer.
If you know for sure please put the answer below and you will get 20 points.
Thank you!

Answers

Answer:

3.

Step-by-step explanation:

Divide the day price by the week and round down.

You get like 3.45, so 3.

hope this helps :)

Step-by-step explanation:

Answer is 3 or 3.45 i think also are you on a quiz on savvas realize or this just work

When renting a limo for prom, the number of people varies inversely with the cost per person. Originally there were 4 people and the cost per person was $57. If the number of people changed to 12, what would be the new cost per person?

Answers

Answer:The new cost per person= $19 when there are 12 people

Step-by-step explanation:

Step 1

Let Number of people be rep as N

And Cost per person = C

such that the relationship of  number of people which varies inversely with the cost per person is given as

N∝ 1/C

Introducing constant of proportionality, k, we have that

N= K/C

such that when there were 4 people the cost per person was $57, K would be

N= K/C

4 = K /57

k= 57 X 4

k=228

Step 2

Therefore If the number of people changed to 12, cost per person would be

N= K/C

12= 228 / C

C= 228/12

C= 19

The new cost per person= $19 when there are 12 people

A rectangle with an area of 16 square units is drawn on a coordinate grid. The rectangle is
dilated by a scale factor of 1.5 with the origin as the center of dilation.
If (x, y) represents the location of any point on the original rectangle, which ordered pair
represents the coordinates of the corresponding point on the resulting rectangle?
A (16x, 16y)
B (16 + x, 16+y)
C (1.5x, 1.5y)
D (1.5 + x, 1.5 + y)

Answers

Answer:

Just multiply x and y by the scale factor

Step-by-step explanation:

The corresponding points on the resulting rectangle will be 1.5x and 1.5y. Hence, option C is correct.

What is the area?

An object's area is how much space it takes up in two dimensions. It is the measurement of the number of unit squares that completely encompass the surface of a compact figure. The squared unit, which is frequently expressed as inches, square feet, etc., is the accepted unit of area.

As per the data given in the question,

The area of the square is 16 square units.

Now, the scale factor is 1.5.

Then, the corresponding point at the x-axis will be 1.5x

Also, the corresponding point on the y-axis will be 1.5y.

To know more about the area:

https://brainly.com/question/27683633

#SPJ2

Please help! Will give Brainly

Answers

The answer you need is A.35

Answer:

a 35

Step-by-step explanation:

Solve 64 = h + 30.
K=?

Answers

Answer:

h = 34

Step-by-step explanation:

64=h+30

Step 1: Flip the equation.

h+30=64

Step 2: Subtract 30 from both sides.

h+30−30=64−30

h=34

Assuming you meant “h =?” instead of “K=?”. In that case,
h = 34.

To find this answer, you just subtract 30 from 64, isolating h on it’s own side. Or imagine the problem arranged “h + 30 = 64.”

Find the product of (2/3)x and (1/2x²)+6x-3​

Answers

Answer:

=

1

2

x2+

20

3

x−3

Step-by-step explanation:


Adriana made 2/5 of a kilogram of trail mix. If she puts 1/5 of a kilogram into each
bag, how many bags can Adriana fill?

Answers

Answer:

2

Step-by-step explanation:

2/5 divided by 1/5 = 2/5 x 5/1 = 10/5 = 2

Jason bought some stickers on Saturday. He used 5 of them that same day. When he went back on Sunday, he bought 4 more stickers. Write an expression that represents the number of stickers Jason has.

Answers

Answer:

[tex]Stickers = s - ![/tex]

Step-by-step explanation:

Analysing the question, line by line.

Let the number of stickers be s/

So:

[tex]Stickers = s[/tex]

He used 5 of them

[tex]Stickers = s - 5[/tex]

He bought 4 more

[tex]Stickers = s - 5 + 4[/tex]

[tex]Stickers = s - ![/tex]

f(x) = 7x² + 21x - 70
factor

Answers

Answer:

Step-by-step explanation:

f(x)=7(x^2+3x-10)=7(x+2)(x-5)

Find the distance between the points (4, -6) and (-4,-6).

Answers

Answer:

I'm pretty sure its 8

Step-by-step explanation:

May I have brainliest Im trying to get a new rank and I'm down to brainlest nd then i get a new rank

Given that 4x - 5y = 12 find y when x= -3

Answers

Answer:

y ⁻²⁴⁄₅ or - 4.8

Explanation:

4x - 5y = 12

x = -3

Insert -3 for 'x' in the equation

4(-3) - 5y = 12

Remove the parentheses: (-a) = -a

-4 · 3 - 5y = 12

Multiply 4 · 3: 12

-12 - 5y = 12

Add 12 to both sides of the equation

-12 - 5y + 12 = 12 + 2

Simplify

-5y = 24

Divide both sides by -5

-5y / -5 = 24 / -5

Simplify

y = ⁻²⁴⁄₅

Turn the fraction into a decimal

y = -4.8

Mom is planting a rose garden in the backyard. The scale drawing shows the garden. What is the actual width and length of the rose garden?

A: length = 34 feet
B: width = 10 feet
C: width = 5 feet
D: length = 17 feet

Answers

Answer:

34

Step-by-step explanation:

In the diagram, triangle MNO maps to triangle M'N'O'.
Identify the corresponding angles.

Answers

Answer:

B and A

.......................

Answer:

M' and N'O'

Step-by-step explanation:

hey I need this quick
​

Answers

Answer:

a

Step-by-step explanation:

go over 5 on the x axis and go up 1 on the y axis

Answer:

A

Step-by-step explanation:

A is at 5,1 so this would make sense

Which expression has a sum equivalent to
6
8
?

A.
1
2
+
2
4
B.
2
4
+
1
4
C.
7
8
+
1
8
D.
2
12
+
2
6

Answers

I think the answer is c

Please help ASAP!!,! Please and thank you have a great and blessed day!

Answers

Answer:

Step-by-step explanation:

1. there is 4 zeros in 10 4, the product is 10,000

2. 100,000

3. 100

Answer:

its 100000

Step-by-step explanation:

10×10=100×10=1000×10=10000×10=100000

what is the greatest common mutiple of 8 and 50

Answers

Answer:

2

Step by-step explanation:

8/4=2

50/25=2

Answer: 2

Step-by-step explanation:

The factors of 8 are: 1, 2, 4, 8

The factors of 50 are: 1, 2, 5, 10, 25, 50

Then the greatest common factor is 2

Hope this helped<3

The diameter of a pizza is 14 inches what is the circumference of the pizza use 3.14

Answers

Answer:

43.96 in.

Step-by-step explanation:

A pizza is found in shape. Therefore, we would apply the formula for the circumference of a circle to find the circumference of the pizza.

Circumference = 2πr

r = ½ of diameter = ½*14 = 7 in.

π = 3.14

Circumference = 2*3.14*7

Circumference of the pizza = 43.96 in.

Paul got 15 out of 20 questions correct on his test. What percent of the questions did Paul get correct?

Answers

75%

15/20 = 75/100 (you just have to multiply both top and bottom by five)

Answer:75%

Step-by-step explanation:

To make a fraction into a percent you have to multiply it by 100

So: 15/20 x 100=15x5=75 so he got 75% of his problems right

Whats 1/4+9/58*1/2 ???

Answers

Answer: 0. 327

Step-by-step explanation:

I just used a demos calculator I suggest using demos scientific calculator.

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