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Bingel [31]
3 years ago
10

Help on my math hw and estimating percants

Mathematics
2 answers:
WITCHER [35]3 years ago
6 0
I learned that you have to do \frac{is}{of} or is/of
so what you have to do is ?/102 + 35%/100% cross multiply to get your answer
MaRussiya [10]3 years ago
5 0
You can use a calculator and times the number by the percentage as 0. etc
e.g. 35% of 100 = 100 times 0.35 = 35
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What is the area of the 50ft by 100ft yard?
mario62 [17]

Answer: 4410 ft^2

Step-by-step explanation:

To find the area of a square or rectangle, all you need to do is multiply the length times the width:

L × W = A

The lengh is 100, and the width is 50

100 × 50 = 5000

However, in this problem, we also have other shapes in the rectangle. To find the area of JUST the green, we need to subtract the areas of the two circles and small blue rectangle.

First, let's get the two circles over with. To find the area of a circle, use this formula:

A = πr^2      r is the radius, which in this case, is 6

A = π6^2

A = 113       This isn't the exact answer, the exact answer would be 113.0973...

Now let's multiply the area of one of those circles by 2, since we have 2 circles:

113 × 2 = 226

Finally, we have to find the area of the blue rectangle. This is simple, just use the formula from the very beginning:

26 × 14 = 364

The last thing to do is to subtract the areas of the two circles and blue rectangle from the area of the entire thing:

5000 - (226 + 364) = 4410 ft^2

4 0
3 years ago
Read 2 more answers
A square picture is mounted on a larger rectangular sheet of poster paper leaving a border around the picture of 2 inches on the
Bumek [7]

An equation that can be used to determine the value of x is x² + 5x - 36 = 0.

To answer the question, we need to know what equations are

<h3>What is an equation?</h3>

An equation is an expression which shows the relationship between two variables.

Given that the x represents the length of side of the square picture and the rectangular sheet poster leaving a border around the picture of 2 inches on the bottom and 1 inch on each remaining sides.

Then,

  • The width of the rectangular poster is W = x + 2 + 1 = x + 3.
  • The length of the rectangular poster is L = x + 1 + 1 = x + 2

So, the area of the rectangular sheet poster is A = LW

= (x + 2)(x + 3)

Since the rectangular sheet poster has an area of 42 square inches, A = 42 in².

So, (x + 2)(x + 3) = 42

x² + 3x + 2x + 6 = 42

x² + 5x + 6 - 42 = 0

x² + 5x - 36 = 0

So, an equation that can be used to determine the value of x is x² + 5x - 36 = 0.

Learn more about equations here:

brainly.com/question/1884491

#SPJ1

6 0
2 years ago
a coffee mug collection includes four red mugs, eight yellow mugs and two white mugs. What is the probability of selecting two w
Kruka [31]

Assuming that the selection process was done without replacement, the probability of selecting two white mugs without replacement is 1/28

<h2>Given data</h2>

Sample Space

Red mugs = 4

yellow mugs = 8

white mugs = 2

Sample Size = 4+8+2 = 14

We are going to assume the selection was done with out replacement

Hence the probability of selecting the first white mug is

<em>Pr(W1) = 2/8 = 1/4</em>

<em>The probability of selecting the second white mug is </em>

<em>Pr(W2) = 1/7</em>

<em />

Hence the probability of selecting  two white mugs one after another

= 1/4*1/7

=1/28

Learn more about probability at:

brainly.com/question/25839839

6 0
2 years ago
A test worth 125 points has 49 questions on it. Multiple Choice questions are worth 2 points each and short answer questions are
Charra [1.4K]

Answer:

There were 40 2-point questions and 9 3-point questions.

Step-by-step explanation:

To solve this situation, write two equations. One for the number of questions and one for the number of points.

Let x be the number of 2 point questions.

Let y be the number of 5 point questions.

x + y = 49

Now since x are each worth 2 points, the total points is 2x.

And since y are each worth 5 points, the total points is 5y.

So 2x + 5y = 125. Substitute one of the equations into the other to solve for the variables.

x + y = 49 becomes x = 49 - y. Substitute it.

2(49-y) + 5y = 125

98 - 2y + 5y = 125

98 + 3y = 125

3y = 27

y = 9

Substitute y = 9 back into the equation x = 49 - y to find x.

x = 49 - 9

x = 40

5 0
3 years ago
Drag the item from the item bank to its corresponding match
Morgarella [4.7K]
You are converting the numbers to a word problem.

1. 5+x = the number five plus x

2.  5-x= the number 5 minus x

3. 5x= five times x

4. 5/x= five divided by x

5. three-fourths of x plus 2

6. two minus three-fourths of x

7. 3 times x plus 10

8. ten times x plus three
5 0
4 years ago
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