Mathematics High School

WILL GIVE BRAINLIEST, please hurry!!!

Which expressions have an estimated value that is close to 9? Check all that apply.

A. 1/9 x 9
B. 2/7 x 6.5
C. 3/5 x 14.8
D. 3/4 x 12.47
E. 4/5 x 19.31

WILL GIVE BRAINLIEST, Please Hurry!!!Which Expressions Have An Estimated Value That Is Close To 9? Check

Answers

Answer 1

Answer:

3/5*14.8=8.88

Step-by-step explanation:

3/5=0.6. 0.6*14.8 = 8.88

Related Questions

please help immediately this is 2 days late

Answers

Answer:

51

Step-by-step explanation:

The third term in an arithmetic sequence is 9 and the fifth term is 21 . If the first term if a1, which is an equation for the nth term of this sequence?

A:an=6n-9
B:an=14n+6
C:an=6n+14
D:an=9n-6

Answers

Answer:

A: an = 6n - 9

Step-by-step explanation:

third term in an arithmetic sequence is 9

a3 = a + 2d

a + 2d = 9

the fifth term is 21

a5 = a + 4d

a + 4d = 21

a + 2d = 9 (1)

a + 4d = 21 (2)

Subtract (1) from (2) to eliminate a

4d - 2d = 21 - 9

2d = 12

d = 12/2

d = 6

Substitute d = 6 into (1)

a + 2d = 9 (1)

a + 2(6) = 9

a + 12 = 9

a = 9 - 12

a = -3

nth term of this sequence = a + (n - 1)d

= -3 + (n - 1)6

= -3 + 6n - 6

= 6n - 9

an = 6n - 9

Define the opposite and the absolute value of -8.
O The opposite of -8 is -8. The absolute value of -8 is 8.
O The opposite of -8 is -8. The absolute value of -8 is -8.
O The opposite of -8 is 8. The absolute value of -8 is 8.
O The opposite of -8 is 8. The absolute value of -8 is -8.

Answers

Answer:

The opposite of -8 is 0 and the absolute value in 8

Step-by-step explanation:

Answer:

The opposite of -8 is 8. The absolute value of -8 is 8.

Step-by-step explanation:

pls help me i need to write this for an exam
Describe how you determine the sign of the sum,difference,product,and quotient of two integer numbers

Answers

13 nehrdjyyk ivihudkihpyvkjj ty

Answer:

i would ask someone else sorry

Step-by-step explanation:

A car salesman receives 3% commission on his total weekly sales. Last week his total sales were £28500
How much commission does he earn?

Answers

He should get $855. 28500 x 3% = 855

Help pleaseeeee!!!!!

Answers

Answer:

7/2, 9/2, and 11/2.

Step-by-step explanation:

Let's look at this pattern. Something I immediately saw was that every time, the previous fraction gets added by 1. -3/2 +1 is -1/2, -1/2 +1 is 1/2, and so on. So the next three terms would be 7/2, 9/2, and 11/2.

1A. Nayeli wants to earn some extra money so she sells lemonade for $2 per cup and orange juice for $3 per cup. She sells a total of 100 cups and earns $240. Later she wants to find the number of cups of lemonade and the number of cups of orange juice she sold. Which system of equations below represents this situation?
1. 2x + 3y = 240 AND x + y = 100
2. 2x + 3y = 100 AND x + y = 240
3. x + 2y = 100 AND 3x + y = 240
4. 2x + 100 = 240.AND x = 3y


1B. In the context of the problem, what does your solution (x,y) mean? Fill in the blanks for the solution sentence below: Nayeli sold ____ cups of lemonade and ____ cups of orange juice. Write your answer in this form: 20, 40

Answers

Answer:

1. 2x + 3y = 240 AND x + y = 100

Nayeli sold 60 cups of lemonade and 40 cups of orange juice.

Step-by-step explanation:

Let

Number of cups of lemonade sold = x

Number of cups of orange juice sold = y

The system of equation could be represented by:

2x + 3y = 240 (1)

x + y = 100 (2)

from (2)

x = 100 - y

Substitute into (1)

2x + 3y = 240 (1)

2(100 - y) + 3y = 240

200 - 2y + 3y = 240

- 2y + 3y = 240 - 200

y = 40 cups

Substitute y = 40 into (2)

x + y = 100 (2)

x + 40 = 100

x = 100 - 40

x = 60 cups

Nayeli sold 60 cups of lemonade and 40 cups of orange juice.

(x, y) = (60, 40)

Solve by Elimination:
x - 2y = 4
X - 1y = 2


its urgent

Answers

Answer:

x = 0 and y = -2

Step-by-step explanation:

x - 2y = 4 and X - 1y = 2

you mentioned elemination aka substraction

so you when substract x - x =  0  -2y -( -y) = -y and 4 -2 = 2

so - y = 2

or y = 2

now substitute the numbers

x + 4 = 4

x = 0

and try it with one of the equation  or sometimes trying on both of them can be very helpful

There are 4 dogs, 6 cats, a rooster and 8 pigs on a farm. What is the ratio of
pigs to all the other animals?
A.8:11
B.11:8
C.8:10
D.10:8

Answers

answer: c. 8:11

explanation: pigs to the other animals, which adds up to 11, so the answer is 8:11

Answer: A, 8:11

Step-by-step explanation:

4 dogs + 6 cats + 1 rooster = 11

8 pigs

ratio for pigs to other animals  : 8:11

8 goes first bc the question was "What is the ratio of

pigs to all the other animals? "

pigs first - other animals second

here is the answer to ur question

Answers

Thanks, i really dont get how you are answering your own question but thanks anyway

                                       

.

hello! thanks sm ig.

Pls help for my math class!

Answers

Answer:

i think it is b but i am not 100%

sorry if i am wrong

Step-by-step explanation:

Multiplying by which number is equivalent to a decrease of 11%

Answers

Answer:

n = the number

3n = three times the number

3n - 11 = three times the number decreased by eleven

Step-by-step explanation:

3. Which of the following equations would not have a solution that is the same as the solution to the system
shown below
2x + 3y = 1. x-y=5
(1) 3x+2y=6
(3) 5y=-9
(4) 2x-2y=5
(2) 4x+6y=2

Answers

Answer:

A

Step-by-step explanation:

The solution that is not the same as the solutions to the system of equations is 2x - 2y = 5.

What is a solution?

Solutions are the values of an equation where the values are substituted in the variables of the equation and make the equality in the equation true.

We have,

2x + 3y = 1 _____(1)

x - y = 5 _______(2)

From (1) and (2) we get,

x = 5 + y

2 (5 + y) + 3y = 1

10 + 2y + 3y = 1

10 + 5y = 1

5y = -9

y = -9/5

Now,

x = 5 - 9/5

x = (25 - 9)/5

x = 16/5

The solutions are x = 16/5 and y = -9/5.

Now,

(1) 3x + 2y=6

3 x (16/5) + 2 x (-9/5) = 6

48/5 - 18/5 = 6

30/5 = 6

6 = 6

(2) 5y = -9

5 x (-9/5) = -9

-9 = -9

(3) 2x - 2y = 5

2 x (16/5) - 2 x (-9/5) = 5

32/5 + 18/5 = 5

50/5 = 5

10 ≠ 5

(4) 4x + 6y = 2

4 x (16/5) + 6 x (-9/5) = 2

64/5 - 54/5 = 2

10/5 = 2

2 = 2

Thus,

3x+2y=6, 5y=-9, and 4x+6y=2 have the same solutions.

Learn more about solutions of equations here:

https://brainly.com/question/545403

#SPJ2

A jacket sells for $24.99. All the merchandise in the store is on sale at a 25% discount. If the sales tax is 8%, what will a customer pay for the jacket?

Answers

Answer:

$20.24

Step-by-step explanation:

Since the 25% discount takes off a quarter of the price, we multiply 24.99 by 3/4

24.99 x 3/4 = 18.74

So with the discount and without tax, the cost of the jacket is 18.74

Then we add 8% for sales tax

8% of 18.74 is $1.50

18.74 + 1.5 = 20.24

So the final cost of the jacket is $20.24

I saw this was your first question. Welcome to Brainly.

0.583
What is it in standard form

Answers

Answer:

It should be 583*10^-3

What expression is equivalent to 9(9m + 3t)?

Answers

Answer:

81m+27t

Step-by-step explanation:

Answer:

81m + 27 t

Step-by-step explanation:

The perimeter of a triangle is 90 cm. The lengths of the sides of the triangle are in the ratios 3:5:7 Work out the length of the longest side of the triangle.

Answers

Answer:

9cm 5:9

Step-by-step explanation:

Name the constant in the expression:
3x + 5
please explain how I can solve problems like this

Answers

The constant is 5 because it is not being effected by the variable it is just a 5

3. A sprinkler rotates 75°, pauses, and then rotates another 75°, How many degrees did it rotate altogether?
0 degrees
140 degrees
150 degrees
160 degrees

Help?

Answers

Answer: 150 degrees

Step-by-step explanation:

The number of degrees did it rotate altogether should be considered as the 150 degrees.

Calculation of the number of degrees:

Since A sprinkler rotates 75°, pauses, and then rotates another 75

So, here total degrees be like

= 75 degrees + 75 degrees

= 150 degrees

hence, The number of degrees did it rotate altogether should be considered as the 150 degrees.

Learn more about degrees here: https://brainly.com/question/18313843

What is 4(1 + 9x) ?

Answers

Answer:

36x+4

Step-by-step explanation:

4*1+4*9x

4(1 + 9x)

(4x1) + (4 x 9x)

4 + 36x

Please can you help me on this equation.I just cant seem to solve this though i mostly don't need help.Thank you [tex]\frac{1}{x^2+1} -\frac{x^4}{x^2+1}+\frac{x^4}{x^2-1} -\frac{1}{x^2-1}[/tex]

Answers

Answer:

2

Step-by-step explanation:

combine like denominators:

(1-x^4)/(x^2+1)+(x^4-1)/(x^2-1)

factor:

(1-x^2)(1+x^2)/(x^2+1)+(x^2+1)(x^2-1)/(x^2-1)

reduce:

(1-x^2)+(x^2+1)

1+1=2

6
9
18

What number
comes next in
the above
sequence?

Answers

Answer:

27

Step-by-step explanation:

add half of the previous number to the next one

18/2 = 9

18+9 =27

Answer:24

Step-by-step explanation:

count by your 6's

Answer fast!!!!!!!!!!!!!!

Answers

this is the answer 0.7
decimal form is 0.7, hope this helps

–19w + 11 = –17w − 19
w=
Please help, will mark brainliest to correct answer!

Answers

Answer:

w = 15

Step-by-step explanation:

We have an expression and are asked to solve for w.

-19w + 11 = -17w - 19

Subtract 11 from both sides :

-19w = -17w - 30

Add 17w to both sides :

-2w = -30

Divide -2 from both sides to isolate w :

w = 15

Yo anyone knows the answer to this

Answers

Answer:

3

Step-by-step explanation:

(8y-3)+(-8y+6)=

8y + -8y = 0

-3 + 6 = 3

0 + 3 = 3

What division problem can be represented using the number line?

Answers

A. (10/3) / (5/3)
I got it right :)

Mental Math A typical tip in a restaurant is 15% of the total bill. If the bill is $110, what would the
typical tip be?
The typical tip would be $0.

Answers

Answer:

$16.50

Step-by-step explanation:

15/100*110

15/10*11

3/2*11

33/3

16.50

Please help me. Can you help me do A,B,C,D,E, and F please

Answers

Answer:

KGHKWGJRWGJHWG

Step-by-step explanation:

y - 4= 7(x - 6)
x-intercept
y-intercept

Answers

Answer:

x-intercept: (38/7,0) y-intercept: (0,-38)

Step-by-step explanation:

I think

Carlos and Lily want to know the combined amount of money they made last week. They both made $12 per hour, but Carlos also made a $35 bonus. Carlos says the combined amount is 12C + 35 + 120 where Cis the number of hours he worked, and L is the number of hours Lily worked. Lily says the combined amount is 12(C+ L) + 35. Who is right? Explain.

Answers

Answer:

Lily is right

Step-by-step explanation:

Carlos made:

12C + 35

Lily made:

12L

Together they made:

12C + 35 + 12L = 12(C + L) + 35

Lily is right. We don't know what 120 means in Carlos's equation, he should put 12L for Lily.

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