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
oee [108]
2 years ago
7

The principle of Park Middle School counted all the students in the seventh grade. She found that the ratio of boys to girls was

4:3.
There were 42 girls in the seventh grade. How many boys were in the seventh grade?
Mathematics
1 answer:
LenaWriter [7]2 years ago
3 0

Answer:

68

Step-by-step explanation: 14 '/. 4=26 and 42+26=68

You might be interested in
Translate the sentence to an algebraic expression r minus 7
yanalaym [24]

Answer:

r-7

Step-by-step explanation:

5 0
2 years ago
What is the relationship between the sine and cosine of complementary angles? a They are the same. b They are reciprocals. c The
yanalaym [24]

Answer:

A. They are the same.

Step-by-step explanation:

The sine of any acute angle is equal to its cosine.

6 0
2 years ago
The cost of a company picnic varies directly as the number of employees attending the picnic. If a company picnic costs $487.50
Drupady [299]

The company picnic cost $ 1300 for 80 employees

<em><u>Solution:</u></em>

Given that cost of a company picnic varies directly as the number of employees attending the picnic

Let "c" be the company picnic cost

Let "n" be the number of employees attending the picnic

Therefore,

cost \propto \text{ number of employees attending picnic }

c \propto n\\\\c = kn

Where "k" is the constant of proportionality

c = kn ---------- eqn 1

<em><u>Given that company picnic costs $487.50 for 30 employees</u></em>

Therefore substitute c = 487.50 and n = 30

487.50 = k(30)\\\\k = \frac{487.50}{30} = 16.25

<em><u>How much does a company picnic cost for 80 employees?</u></em>

Substitute n = 80 and k = 16.25 in eqn 1

c = 16.25(80) = 1300

Thus $ 1300 is the cost for 80 employees

5 0
2 years ago
Which expression represents "5 less than the product of 9 and the sum of a number and 3"?
Nikitich [7]

Answer:

(9(x+3))-5

Step-by-step explanation:


5 0
3 years ago
(½ point for model; ½ point for correct simplified expression)<br>(8x + 2) + (-9x + 7)
Alexxx [7]

Answer:

Simplified= −x+9

Step-by-step explanation:

5 0
2 years ago
Other questions:
  • Can someone please help me with these 7th grade math questions
    11·1 answer
  • What is the domain of the following list of ordered pairs?<br> (-3, -2), (1, 5), (-2, 4)
    15·1 answer
  • Find the value of x help 10 points
    11·1 answer
  • Multiply.<br> (w)2<br> Please help fast
    6·1 answer
  • The cost to rent an instrument is $65 for the first month. It costs $30 for each additional month,x, that the instrument is rent
    6·2 answers
  • An elevator has a maximum weight limit of 1.5 tons .Rozell company workers load boxes that weight 150 each into the elevator to
    12·1 answer
  • How do you solve quadratics
    5·2 answers
  • Find the value of a that makes the ordered pair a solution of the equation
    12·1 answer
  • Direct materials variances
    6·1 answer
  • consider the line 4x+9y=-8find the equation of the line that is perpendicular to this line and passes through the point (-2, -2)
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!