How to do this question

Answer:

let y be the total number of students.

y×40/100=18

18×100/40=y

45=y

Answer:

9

Step-by-step explanation:

w = 3

6w - 9

6(3) - 9

= 18 - 9

= 9

Answer:

Please mark Brainliest:)

Step-by-step explanation:

6w-9

6(3)-9

18-9

9

Just plug in and solve.

I hope this helps you!

I wish you good grades and luck with Maths and other subjects!

Answer:

4

Step-by-step explanation:

Let x = the number

2x + (1/2)x = 10

(5/2)x = 10     Multiply both sides by 2/5

x = 4

Answer:

D, <VMY cannot be a right angle, its an obtuse angle (more specifically, ab a 120 degree angle)

Answer:

(-0,6)

Step-by-step explanation:

Reflection in y-axis,negate the x

(x,y) = (-x,y)

Point (0,6)

(0,6) = (-0,6)

Hope it helps.

Answer:

A.21 days

B.2, 6

Step-by-step explanation:

(a) In 21 days we will have both lessons on the same day again.
(b) Between each occurrence of having both lessons on the same day again, you will have 2 piano lessons and 6 tuba lessons.

a.
To find out when we will have both lessons on the same day again, we need to find the least common multiple (LCM) of 7 and 3.

The LCM of 7 and 3 is 21. This means that every 21 days, our piano and tuba lessons will align again.

b. Between each occurrence of having both lessons on the same day, you have 21 days. During these 21 days, you will have:

21 / 7  - 1 = 2 piano lessons.

21 / 3 - 1 = 6 tuba lessons.

So, between each occurrence of having both lessons on the same day again, we will have 2 piano lessons and 6 tuba lessons.

Learn more about the least common multiple here:

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here is your answer,

hope it helps you.

The algebraic expression for 64% of m is 0.64m. Therefore, option A is the correct answer.

Percentage is defined as a given part or amount in every hundred. It is a fraction with 100 as the denominator and is represented by the symbol "%".

Given that, 64% of m.

Now, 64% of m

= 64/100 ×m

= 0.64m

Therefore, option A is the correct answer.

To learn more about the percentage visit:

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Answer:

31.50

Step-by-step explanation:

I added 8 +8+8+8+8 got 40 then subtracted 8.50

Answer:

Let the cost of each folder be x :

[tex]32.00 - 10x = 24.30 \\ - 10x = 24.30 - 32.00 \\ - 10x = - 7.7 \\ x = \frac{ - 7.7}{ - 10} \\ \\ x = 0.77 \: dollars \\ \\ { \boxed{ \boxed{cost \: of \: each \: folder = 0.77 \: dollars}}}[/tex]

Each folder costs $0.77

Answer:

There are 4 terms

3y and 6 are the only constant terms (i think, sorry)

Coefficients: 4, 3, 6

I love the Luz pfp :DD

In the above figure, the Angles P and Q are equal, so their opposite sides will be equal too.

i.e. 5n = 32 + n

now, let's solve for n :

Length of PR :

Value of segment PQ is 40 units

Answer:

Your answer is -3

Step-by-step explanation:

-4-(-1)

-4+1

-3

Mark me brainlist

The number line is attached in the solution.

In math, a number line is a horizontal straight line with numbers placed at equal distances from each other along that line.

A number line is a pictorial representation of numbers on a straight line. It's a reference for comparing and ordering numbers.

Given is an expression, -4-(-1), we need to plot its solution on the number line,

So,

-4-(-1)

Opening the brackets,

= -4+1    [∵ (-) × (-) = +]

= -3

Plotting -3 in the number line, it will be put 3 units left from zero in the number line,

We put negatives number on the left side and the positive numbers on the right side of zero, in the number line,

For example, we are asked to put 7 in the number line, we will count 7 units to the right of zero in the number line, and suppose if we are asked to plot -6, then we will count 6 units to the left of zero in the number line.

The number line is extended from -∞ to +∞

Learn more about number lines, click;

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Answer:

45

Step-by-step explanation:

(replace m with 7 and replace n with 3)

6 x 7 = 42 then you add 3 = 45

Answer:

maybe 1/6 for each one.....

Answer:

5

Step-by-step explanation:

Plugin to the formula and then solve.

Answer:

I don't know

Step-by-step explanation:

my previous answer was wrong

Answer:

As while decimal figures which have unique numbers such as pi are irrational numbers, decimal numbers which have repeating numbers such as 0.36363 are rational numbers. Which means that 0.363636 is a prime example of a rational number that is not an integer.

May i have brainliest

Answer:

13.

Let us say

first angle be = 4x -10

second angle = x

now add them to 90 as complementary angles add up to 90

4x - 10 + x = 90

5x - 10 = 90

5x = 90+10

5x = 100

x = 100/5

x = 20

the first angle = 4x -10

                       = 4(20) -10

                       = 80 -10

                       = 70

the second angle = x

                             = 20

the angles are 70 and 20

Step-by-step explanation:

-9+15

15-9

+6

So after there you can construct a numberline showing that.

-9+15 can be written as 15-9

Model:-

Suppose you have a empty bag .You are given 15 chocolates .Then 9 chocolates are taken back.How mamy chocolates you have now?

Answer:

The expression for the total cost is 20 + 3 × 4.95.

Step-by-step explanation:

BOOKS Akira bought one new book for $20 and three used books for $4.95 each. Write and evaluate an expression to find how much money the books cost. SOLUTION: To find the cost of the used books, multiply the price by how many Akira purchased.

Answer:

point of intesection

Step-by-step explanation:

not sue what you are looking for here

Answer:

42 3/5 yd²/h

Step-by-step explanation:

Divide the area by the time to find the unit rate:

 (35 1/2 yd²)/(5/6 h) = (71/2)(6/5) yd²/h

 = 213/5 yd²/h = 42.6 yd²/h

Sides of hexagon = 6

Hexagon

1

1 + 5 = 6

1 + 5 + 9 = 15

1 + 5 + 9 + 13 = 27

1 + 5 + 9 + 13 + 17 = 45

Answer:

I believe its A.

Step-by-step explanation:

Answer:

[tex] {49}^{ \frac{1}{2} } = \sqrt{49} = 7[/tex]

[tex] {2}^{ \frac{2}{3} } = \sqrt[3]{( {2})^{2} } = \sqrt[3]{4} = 1.5874[/tex]

I hope I helped you^_^

Answer:

Step-by-step explanation:

Let the number of pictures is x.

The equation for a total is:

Solve for x to find the number of pictures: