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hodyreva [135]
3 years ago
13

Mrs.Smith has 3 boys to every 5 girls in her class. What percent of her class is boys?

Mathematics
2 answers:
Sergeu [11.5K]3 years ago
7 0

Answer:

60% of the class is boys.

Step-by-step explanation:

gizmo_the_mogwai [7]3 years ago
4 0

Answer:

1/4

25 percent

Step-by-step explanation:

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The members of a cooking club are making cakes, which they will sell at a street fair for $8 apiece. It cost $30 for a booth at
Olin [163]

They need to sell 5 pieces to cover their expenditures (have a profit of zero).

<h3>How many cakes will they have sold?</h3>

We know that the costs are:

  • $30 for the booth at the fair.
  • $2 for each piece of cake they sell.

And the revenue is:

  • $8 for each piece of cake.

So, the profit (the difference between the revenue and the cost) for selling x pieces is:

p(x) = $8*x - $2*x - $30

p(x) = $6*x - $30

We want to find the value of x such that p(x) = 0, then:

0 =  $6*x - $30

x = $30/$6 = 5

They need to sell 5 pieces to cover their expenditures (have a profit of zero).

If you want to learn more about profit:

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5 0
2 years ago
Plz help this one is the last one of the day plz help
Juliette [100K]
We know 20% is 15
and now we find 80%

since 20% x 4 = 80%, we can multiply 15 by 4 to get 80% of 75

15 x 4 = 60

80% of 75 = 60
3 0
3 years ago
4. Lydia cut out her initial from a piece<br><br> of construction paper,
Ratling [72]

Answer:

Option A is correct.

10 square centimeters.

Step-by-step explanation:

Complete Question

The complete Question is attached in the first attached image.

Lydia cut out her initial from a piece of construction paper. How many square centimeters of construction paper are used to make Lydia's initial?

A) 10 square centimeters

B) 11 square centimeters

C) 15 square centimeters

D) 22 square centimeters

Solution

From the second attached image, it is evident that we can split the L-shaped figure into two rectangles of dimensions (3 cm by 1 cm) and (7 cm by 1 cm)

The total area of the figure is thus

(3 × 1) + (7 × 1) = 10 cm²

Hope this Helps!!!

3 0
3 years ago
Use the remainder Theorem and synthetic division to find p(3) for p(x) = x4 + x3 -x2 - 2x
maxonik [38]

You do not need to use the remainder theorem to find p(3). Just plugin 3 where the x is located in

x^4 + x^3 - x^2 - 2x

3^4 + 3^3 - 3^2 - 2(3) = 93

Answer is a.

4 0
3 years ago
Help me please!! As soon as you can!!
Mrrafil [7]
The answer: X plus X+4
3 0
3 years ago
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