1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
joja [24]
3 years ago
13

In science class, the girl to boy ratio is 3 to 7.

Mathematics
1 answer:
Mariana [72]3 years ago
7 0

Answer:

There are <u>35 boys</u> in the class.

Step-by-step explanation:

Girls to Boys ratio = 3:7

Total number of students in class = 50

Let total number of girls be '3x' and total number of boys be '7x'

Total number of girls + Total number of boys = Total number of students

3x + 7x = 50

10x = 50

x = 50/10

x = 5

\therefore

Total number of girls = 3 × 5 = 15

Total number of boys = 7 × 5 = 35

You might be interested in
Brad gets paid one time a day $31 to deliver newspapers for the Washington Post. He also gets paid $0.15 for each paper he deliv
SSSSS [86.1K]
He delivered 44 papers
3 0
3 years ago
PLEASE HURRY
navik [9.2K]

Answer:

D

Step-by-step explanation:

|-6x+3|=0

-6x+3=0

-6x=-3

x=-3/-6

x=1/2

4 0
3 years ago
Salma and coron broomall have reached an agreed upon price of $197,000. They plan to make a 30 percent down payment and finance
Sladkaya [172]

Answer:

1. The monthly payment is $689.5

2. The total amount to be paid is

$224,580.

Step-by-step explanation:

Salsa and Corn Broom all reached an agreement upon the price of $197,000.

- The plan on making a 30 percent down payment. This implies that the will pay 0.3 × $197,000 = $59,100

This leaves them with

$197,000 - $59,100

= $137,900 to pay.

The plan on financing this remaining amount at 6 percent for 20 years.

This means they will pay

0.06 × $137,900 = $8,274 for 20 years. This translates to the payment of $8,274 × 20 = $165,480 across the 20 years.

1. The monthly payment is the yearly payment divided by 12.

Which is $8,274 ÷ 12 = $689.5

2. The total amount to be paid is

$165,480 + $59,100

= $224,580.

6 0
3 years ago
M24 = 115°<br> mZ1 = (2x)<br> m22 = (x + 28)
velikii [3]

Answer:

n the figure, m 3 = 75 and mZ10 = 115. ... CY 337] . 2x +13269. 2x =50. X=28. Find mZ1 in each figure. Exoor. 10. تا ... m24 = 75 24 and 22 are vertical angles.

Missing: m22 = ‎| Must include: m22 =

Step-by-step explanation:

8 0
3 years ago
If f(x)= 6x+7, determine the value of f(r-2)
Tanzania [10]

The value of f(r - 2) is 6r - 5

<h3>What is a function?</h3>

Function can be defined as an expression, rule, or law that defines a relationship between one variable known as the independent variable and another called the dependent variable.

From the information given ,we have;

f(x)= 6x+7, with f ( r - 2)

From here, we have that x = r -2

Now, let's substitute x as r - 2 in the function given;

f(x) = 6x + 7

f(r - 2) = 6 ( r - 2) + 7

Expand the bracket

f(r - 2) = 6r - 12 + 7

collect like terms

f(r - 2) = 6r - 5

Thus, the value of f(r - 2) is 6r - 5

Learn more about functions here:

brainly.com/question/6561461

#SPJ1

5 0
2 years ago
Other questions:
  • Convert 3/11 to a decimal using long division
    9·1 answer
  • Write the slope intercept form of the equation of the line described
    7·1 answer
  • The amounts (in ounces) of juice in eight randomly selected juice bottles are: 15.8, 15.6, 15.1, 15.2, 15.1, 15.5, 15.9, 15.5 co
    12·2 answers
  • Is 2/3 an irrational number
    8·2 answers
  • The exterior angle of a regular polygon is 36°. what is the name of this polygon?
    7·2 answers
  • 2/a - 6 = 12<br> = 12<br> Nejekernammd
    9·2 answers
  • 6x - 4y = 152<br> y= 3x-76 / 2
    13·1 answer
  • 7) A coat is selling for 3/4 of the original price. The sale price is $180. Write and solve
    12·1 answer
  • Which mixed number is equivalent to the improper fraction below?
    8·2 answers
  • Which classification describes the following system of equations?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!