40% of students play an instrument if 8 represents the amount of students who play an instrument how many students are in this class

Answers

Answer 1

Answer:

500 students

Step-by-step explanation:


Related Questions

Solve the equation -5x + 3 = 2x - 1

Answers

Step-by-step explanation:

Given

- 5x + 3 = 2x - 1

or, 2x + 5x = 3 + 1

or, 6x = 4

or, x = 4/ 6

Therefore x = 2 /3

Hope it will help :)❤

Step-by-step explanation:

Subtract

3

3

3

from both sides of the equation

5

+

3

=

2

+

1

5

+

3

3

=

2

+

1

3

2

Simplify

Subtract the numbers

Subtract the numbers

5

=

2

2

3

Subtract

2

2x

2x

from both sides of the equation

5

=

2

2

5

2

=

2

2

2

4

Simplify

Combine like terms

Combine like terms

7

=

2

5

Divide both sides of the equation by the same term

7

=

2

7

7

=

2

7

6

Simplify

Cancel terms that are in both the numerator and denominator

Divide the numbers

=

2

7

Write the expression as StartFraction a Over 90 EndFraction. Write the expression as 90 – a. Write the expression as a – 90. Substitute 102 in for the variable, a. Simplify by subtracting 90 from 102. Simplify by dividing 102 by 90. The answer is 1.13. The answer is 12.

Answers

Answer:

Write the expression as a – 90

Simplify by subtracting 90 from 102.

The answer is 12.

Step-by-step explanation:

Write and evaluate the expression. Then, check all that

apply

the difference of a number and ninety;

o Write the expression as

90

when a = 102

Subtraction Words

Write the expression as 90-a.

Write the expression as a -90,

O Substitute 102 in for the variable, a.

Simplify by subtracting 90 from 102.

Simplify by dividing 102 by 90.

decreased by

difference

fewer

The answer is 1.13.

less than

The answer is 12.

subtract

Let

The unknown number = a

The expression is

a - 90

Substitute a = 102

a - 90

= 102 - 90

= 12

The answer is - /C, D, E, H/

                        - /3, 4, 5, 8/

                        - "Write the expression as a – 90.",

                         "Substitute 102 in for the variable, a.",

                         "Simplify by subtracting 90 from 102.",

                         "The answer is 12."

                           I hope it makes sense, you're welcome!

Together Mike and Sara ran 42 laps on the
track. Sara ran twice as many laps as
Mike did. Write a system of equations and
solve it to see how many laps they each ran.

Answers

Answer:

i dont know the system of equations since i only calculated it until i got the right answer but sara did 28 laps and mike did 14

Felicity cuts 27 equal strips from a 6-yard spool of ribbon. Which expressions show the number of yards for one strip of ribbon

Answers

Answer:

2/9 yards

Step-by-step explanation:

Felicity cuts 27 equal strips from a 6-yard spool of ribbon. Which expressions show the number of yards for one strip of ribbon

From the above question:

27 equal strips of ribbon = 6 yards of spool

1 strip of ribbon = x yards

Cross Multiply

27 strips of ribbon × x yards = 6 yards × 1 strip of ribbon

x yards = 6/27

x yards = 2/9 yards

Therefore, for 1 strip of ribbon we need 2/9 yards

CAN SOMEONE PLEASE HELP ME

Answers

same side exterior angles are two angles that are on the same side and exterior to the parallel lines. they're supplementary

What is the product of (x − 3) and (x + 7)? A. x^2 + 4x − 21 B. x^2 − 4x − 21 C. x^2 − 10x − 21 D. x^2 + 10x − 21

Answers

Answer: (x−3)(x+7)

Step-by-step explanation:

=(x+−3)(x+7)

=(x)(x)+(x)(7)+(−3)(x)+(−3)(7)

=x^2+7x−3x−21

=x^2+4x−21

Answer:

A. X^2+4x-21

Step-by-step explanation:

(x−3)(x+7)

=(x+−3)(x+7)

=(x)(x)+(x)(7)+(−3)(x)+(−3)(7)

=x2+7x−3x−21

=x2+4x−21

I hope this helps :) I got it CORRECT also i added the Steps if your teacher asked for steps :)

What's the answer to this? ​

Answers

51/16 ................

Answer:

The answer to this equation is 3 3/16

Step-by-step explanation:

Show work and please

Answers

Equation is:
Y=mx +b
From the graph:
Y=-2x+8

I need help please, I will give brainliest to the first 2 people

Answers

Answer:

It's (D)

Step-by-step explanation:

129 divided 50 pls hurry

Answers

Answer:

2.58

Step-by-step explanation:

129/50 = 2.58

Number equivalent to 129 /50 is 2.58 .

Given,

129 divided 50

Using division property,

The rules for division are:

(1) positive × or ÷ positive = positive

(2) positive × or ÷ negative = negative

(3) negative × or ÷ negative = positive

Rule for long division method,

Divide the tens column dividend by the divisor.

Multiply the divisor by the quotient in the tens place column.

Subtract the product from the divisor.

Bring down the dividend in the ones column and repeat.

Therefore,

divide, multiply, subtract, bring down and repeat or find the remainder.

Here the required value is of :

129/50

= 2.58

Hence the answer is2.58

Know more about division,

brainly.com/question/10703980

#SPJ6

3.
Write the slope-intercept form of the equation for the line.


A. y = 2x – 1

B. y = [tex]\frac{1}{2}[/tex]x – 1

C. y = [tex]\frac{1}{2}[/tex]x + 1

D. y = –2x – 1

Answers

Answer:

I'm gonna go with letter A. y= 2x - 1

Step-by-step explanation:

Answer:

y = 2x -1

Step-by-step explanation:

the line passes through -1 on the graph

it rises 2

and moves right once

Hope this helps ! (:

(20 points) How can a solution to a system of linear equations be determined exactly by graphing?
Please help, i have to have this answered soon and im freaking out.

Answers

Answer:

Free oints

Step-by-step explanation:

Which expression is equivalent to 99 + 22? A. 11(9) + 2(1) B. 11(9 + 2) C. 9 + 2(11) D. (8 × 9) + (6 × 7)

Answers

Answer:

B

Step-by-step explanation:

They both equal 121

Math-geometry 9th grade I rlly need help with this finding x

Answers

Answer:

1)x=11

2)x=9

Step-by-step explanation:

In the picture

if margrate has a basket of apples and pears. the number of apples equals three more than twice the number of pears. if there are 15 pieces ot fruite altogether how many apple and pears are there?​

Answers

Answer:

There are 6 pears and 9 apples.

Step-by-step explanation:

The equation would be a=3+2p

i need this done today whoever gets it correct gets brainliest!! PLZZZ HELPPP MEEE

Answers

Answer:

9x+6

Step-by-step explanation:

Frank Bought a Tony Hawk Skateboard for 1/5 off the original price. If the Original price was $300 how much did frank pay?

Answers

Answer:

He paid $60 for this question

What is the magnitude of -3+4i

Answers

The Magnititude of -3 + 4i is 5.

In the diagram below DE is the midsegment of AABC.
Find the length of DE and BC.

Answers

Answer:

DE = 5

BC = 10

Step-by-step explanation:

ΔAED is a right triangle with legs of 4 and 6/2 = 3

Use the Pythagorean theorem to find DE

[tex]4^{2} + 3^{2} = DE^{2}[/tex]

16 + 6 = 25 = [tex]DE^{2}[/tex]

DE = 5

The midsegment of a triangle is 1/2 the length of the corresponding side.

Therefore, BC = 2 DE = 2(5) = 10 = BC

On the grid below, draw the graph of y = 2 - 3x for the values of x from - 3 to 3

Answers

Step-by-step explanation:

slop -3

(x ,y) point that throgh the x,y axis

(0,2), (1,-1), (2, -4),( -1, 5), ( -2, 8) etc you can make the graph by connect the co ordinat point

1
3x +2y - 5z
If
y-42
X
=
find the value of x when y = 6 and z
2
3y

Answers

Answer:

hmmmm i saw something about 13?????

Step-by-step explanation:

Hiioooo!! Can someone please help me with this! ❤️❤️❤️:)

Answers

Answer:

c b a

Step-by-step explanation:



Jessica paid $23,000 for her car. The value of the car depreciates at a rate of 15% each year. Which function represents the value of her car each year?

Answers

Answer:

Step-by-step explanation:

DOES ANYONE KNOW THE ANSWER

When written in factored form, 6w^2-11w−2 is equivalent to

Answers

Answer:

(6w+1)(w-2)

Step-by-step explanation:

Answer:

13w - 2

Step-by-step explanation:

6w² - 11w - 2

24w - 11w - 2

13w - 2

For ΔJNM, the following facts are given: KL || MN
KL = 8 ft MN = 10 ft JL = 3.2 ft MK = 1.5 ft
Answer the following:
a) Is ΔJNM ~ ΔJLK? Support your answer with a postulate or theorem. b) Find the length of JN. Show all your work.
c) Find the length of JK. Show all your work.
d) What is the area ratio of ΔJNM to ΔJLK? Show all your work.

Answers

Answer:

I havn't gotten c and d yet, but:

a) They are similar because of the Angle Angle Theorem

b) JN=4ft

simplify 20=7z-15 , y+5=29​

Answers

answer

20=7z-15

= z=5

y+5=29

= y=24

Answer:

-7z=-15-20          y+5=29

-7z=-5                  y=29-5

z=5/7                  y=24

Step-by-step explanation:

ther

Find the area of the shaded polygons
PLS HELP ASAP AGAIN!!!

Answers

9514 1404 393

Answer:

  9 square units

Step-by-step explanation:

Pick's theorem is a useful relationship in circumstances like these. It tells you the area is ...

  A = i + b/2 - 1

where i is the number of interior points (8), and b is the number of points on the border (4).

The area of this figure is ...

  A = 8 + 4/2 -1 = 9

The area of the polygon is 9 square units.

_____

You can also get there by realizing the bounding rectangle is 4 units square. From that, corner triangles are cut. CW from upper left, those triangles have (base, height) dimensions of (3, 2), (1, 3), (3, 1), and (1, 2). So, the total of their areas is (1/2)(6 +3 + 3 +2) = 7 square units. The shaded area is then 16-7 = 9 square units, same as above.

Parallel Lines cut by a transversal

Answers

Answer:

-4

Step-by-step explanation:

1. They are alternate exteriors meaning they are supposed to be the same so you sort the equation like 134+x=130

2. Then you pass 134 both side like ×=130

-134

3. Which will equal :-4

Help me with this!!!

Answers

Answer:

Yes

Step-by-step explanation:

You can use the perpendicular bisector theorem, because the bisecting line is intersecting at a right angle, which means it is actually perpendicular. Along with IJ and IH being congruent (equal)

A school needs 175 light bulbs.Bulbs come in packages of 15.How many packages should the school order?

Answers

Answer: 12 packages

Step-by-step explanation:

Take 175 and divide it by 15

175/15

You will get 11.6

Since you are unable to order 11.6 packages you will need to order 12 packages to have enough lightbulbs.

Answer:

the school would need to buy 12 pack and that will give them 180 light bulbs they will have 5 leftover

Step-by-step explanation:

15x11=165 thats not enough so they ened to buy 12 packs

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