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
Alborosie
4 years ago
5

The ratio of boys to girls in a class of

Mathematics
1 answer:
Fudgin [204]4 years ago
8 0

Answer:

The answer is option A.

<h3>35.</h3>

Step-by-step explanation:

To find the number of girls in the class we must first find the total parts

That's

2 + 7 = 9

In the ratio 7 correspond to girls so the number of girls in the class are

7/9 × 45

= 7 × 5

= 35

Hope this helps you

You might be interested in
A jeweler wants to minimize business costs and has found that the average cost in dollars per necklace is given by C(x)=0.5x^2-7
Vika [28.1K]

Answer:

The maximum cost is 41 dollars per necklace.

Step-by-step explanation:

The average cost in dollars/necklace is given by :

C(x)=0.5x^2-7x+65.5  .....(1)

Where

x is the number of necklaces that are created

To maximize the cost, find the value of x by putting dC/dx = 0

\dfrac{d}{dx}(0.5x^2-7x+65.5)=0\\\\x-7=0\\\\x=7

Now put the value of x = 7 in equation (1).

C(x)=0.5(7)^2-7(7)+65.5\\\\=41\ \text{dollars per necklace}

Hence, the maximum cost is 41 dollars per necklace.

8 0
3 years ago
I’ll give points + brainalist
notka56 [123]

Answer:

C

Step-by-step explanation:

The number of points either side of the line of best fit are equal (3 points either side) and the line is the line of best fit.

5 0
2 years ago
5=2/3x what does x equal
mixer [17]

Answer:

I dont know if u mean 5 equals 2 divided by 3x, but I got 2/15

Step-by-step explanation:

3 0
3 years ago
I need help I don’t understand
Gelneren [198K]
B is your answer lol
5 0
3 years ago
Determine the slope between the points (-3, 0) and (0, 5)
Alex787 [66]
The slope is approximately 1.7x+5
5 0
4 years ago
Read 2 more answers
Other questions:
  • What is the value of x3 + 5.2y when x = 2 and y = 3? 8.2 9.2 18.6 19.6
    11·2 answers
  • Because they are alternate interior angles.
    6·1 answer
  • if a given set has thirteen elements how many subsets have somewhere from four through eight elements
    8·1 answer
  • What is 1 fourth of 68?
    12·1 answer
  • if there are 90 calories in 3/4 cuo of yogurt how man calories are in 3 cups of yogurt 30 calories 202 calories 270 calories 360
    6·2 answers
  • Help please<br><br><br><br><br> thank you! :)
    7·1 answer
  • Tommy had 3 packs of bubble gum. Each pack has 5 pieces in it. How many peices of bubble gum does Tommy have a total of?
    11·2 answers
  • Simplify the following expression. 3x(4x − 3) A. 12x2 + 13x B. 12x2 + 5x C. 12x2 − 5x D. 12x2 − 9x
    11·2 answers
  • Which expression is represented by the phrase "9 less than 5 times a number"?
    7·1 answer
  • What is the total volume of both storage spaces if one side of the large storage space is 4 feet long?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!