The ratio of girls to boys is 12 girls to 20 boys.
If there are 3 girls, how many boys are there?
There are
boys.
Next Question

Answer:

75%

Step-by-step explanation:

Let x be the percentage for sports club members.

x% of 20 = 15

x/100 x 20 = 15

x/5 = 15

x = 75

Answer:

125

Step-by-step explanation:

180-55=125

Answer:

Each of the n tests must have two success p or failure q results, they are mutually exclusive. The probability of success p of an event is fixed or constant, likewise for the probability of failure q. The tests are independent.

Step-by-step explanation:

Answer:

c.

Step-by-step explanation:

Answer:

Step-by-step explanation:

If 4 x 8 = 32

32 / 8 must equal 4

They are a fact family with only 32, 8, and 4 in it. I hope that's clear!

Hope that helps!

Answer:

yes!

Step-by-step explanation:

If a × b = c Then, c ÷ b = a

Therefore it is equal

Answer:

area = 100.5 in²

Step-by-step explanation:

area = 13.4 x 7.5 = 100.5 in²

Answer:

Look at the picture

Step-by-step explanation:

Answer:

36

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

72° and 3x are adjacent angles and are supplementary , that is

72° + 3x = 180° ( subtract 72° from both sides )

3x = 108° ( divide both sides by 3 )

x = 36° → C

Answer:

4 movies, $20

Step-by-step explanation:

Given data

Family Video

charges $10 for a monthly membership and

$2.50 per movie

let the number of movies be x

and the charge for x movies be y

y= 10+2.5x----------1

Babe's  Movies

charges a $12

membership and $2 per

movie.

let the number of movies be x

and the charge for x movies be y

y= 12+2x----------2

equate 1 and 2

10+2.5x= 12+2x

collect like terms

12-10= 2.5x-2x

2= 0.5x

x= 2/0.5

x= 4 movies

put x= 4 in equation 1 or 2

y= 12+2x----------2

y= 12+2*4

y= 12+8

y= $20

Answer:

x = -1

y = -5

Step-by-step explanation:

y = x - 4                                     y = x - 4

2x + 3y = -17                             y = (-1) - 4

2x + 3(x - 4) = -17                      y = -1 - 4

2x + 3x - 12 = -17                       y = -5

5x - 12 = -17

5x - 12 + 12 = -17 + 12                 Check

5x = -5                                    2x + 3y = -17

5x/5 = -5/5                           2(-1) + 3(-5) = -17

x = -1                                        -2 + -15 = -17

                                                   -17 = -17

Answer: 12x

Step-by-step explanation:

12 times x = 12x

Hope it helped u,

pls mark as the brainliest

^_^

Answer/Step-by-step explanation:

An expression is a series of number without any signs so expression would be the first one.

Inequality would be when they do a sign like > or <, etc. so it would be the 2nd one.

Equation would be when they have an equal sign which would be the 3rd one.

Simple Ex.

Expression : 2 + 66 / 11 - 3 x 2

Inequality : g + h > f

Expression : 4j - 3 = j

Hope this helps :)

Answer:

Step-by-step explanation:

Independent variables may be referred to as one or more single or standalone variables which affects the outcome or output variable, which is the dependent or response variable. To determine the cost of sandwich (this will be the response variable), this will be affected or dictated by the independent variables, which includes ; the size of sandwich, the type of bread roll used (hard roll, soft bun, hero, slice bread). Also, the tyoe of sandwich filling which may be (cheese, Ham salad, Ham and cheese, Egg mayonnaise and so on). Therefore, these variables are independent and the combination of each of these predictor variables will dictate the dependent variable, Cost.

Answer:

x=3

Step-by-step explanation:

Figure ABCD is a rectangle. In rectangles, opposite sides are equal. In the figure, BC and AD are opposite of each other, therefore their side lengths are equal. The side lengths are given: BC=9x-6, and AD=3x+12. Write this as an equation:

please let me know if this is wrong, hope it helps :)

Answer:

y=15

Step-by-step explanation:

Since the triangles are similar you take 22/33 and 10/y then cross multiply and get 330=22y now divide 330 by 22 and you get 15

The value of x is 26.4 unit and y is 15 units,

Two triangles are said to be comparable if their two sides are in the same ratio as the two sides of another triangle and their two sides' angles inscribed in both triangles are equal.

Given:

As, the two triangles are similar then the ratio of their corresponding sides and angles are equal.

So, 22/ 10 = 33/ y

22y = 330

y = 330/22

y = 15

and, 22/10 = x/ 12

264 = 10 x

x= 26.4

Hence, the value of x is 26.4 unit and y is 15 units,

Learn more about Similarity here:

https://brainly.com/question/26451866

#SPJ2

Answer:

175 meters, since its below sea level it would be- -400m - (-225m), subtracting with negative # and negative # is the equivalent of getting closer to zero, just figure out 400 - 225, and put a - symbol at the beginning of the number

Answer:

y < 28

Step-by-step explanation:

get the y on its own

y/2 - 6 < 8

y/2 - 6 + 6 = y/2

8 + 6 = 14

y/2 < 14

y/2 x 2 = y

14 x 2 = 28

y < 28

Answer:

775 ft

Step-by-step explanation:

1000/800= K/620

800K = 620,000

K = 775 ft

Answer:

There are no corresponding angles shown in the figure.

They are all pairs of supplementary angles.

Step-by-step explanation:

corresponding angles add up to 90°

supplementary angles add up to 180°

Answer:

The answer is D. 148

144= y-4

Answer:

6

Step-by-step explanation:

3 is smaller that 5 so round down

Answer:

44 children tickets

Step-by-step explanation:

This is a system of equations. I solved for y, the amount of adult tickets sold which equals 102. To get the amount of children's tickets, subtract 102 from 146 to get 44.

Given:

A recipe uses 4 pounds of rice and 5 quarts of boiling water.

To find:

The rate of rice to quarts of water for this recipe.

Solution:

We need to divide the amount of rice by amount of water to get the rate of rice to quarts of water for this recipe.

[tex]\text{Required rate}=\dfrac{\text{Rice in pounds}}{\text{Water in quarts}}[/tex]

[tex]\text{Required rate}=\dfrac{4}{5}[/tex]

[tex]\text{Required rate}=0.8[/tex]

Therefore, the  rate of rice to quarts of water for this recipe is 0.8.

Answer:

Step-by-step explanation:

100-15=85

85 % of x=19,320

x=19,320 ×100/85≈22729.41

Answer:

x = 9

Step-by-step explanation:

8x - 10 = 62

8x = 72

x = 9