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alexandr1967 [171]
3 years ago
7

How can I solve 20% of 15? Please help and please explain. I need this now!

Mathematics
2 answers:
nasty-shy [4]3 years ago
8 0
15 times 20 over 100, or 1 fifth. 15 times 1 fifth is 3.
Licemer1 [7]3 years ago
6 0

To solve this, you can use this helpful equation:

\frac{is}{of} = \frac{percent}{100}

Since you now have this equation, you can just plug in.

\frac{x}{15} = \frac{20%}{100}

To find x you would cross multiply, multiply the x with 100 and the 15 with the 20%.

100x = 300

Now to find x you would just divide both sides by 100.

x=3

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Store a sells jeans for 7/8 of the Price at store b.
Softa [21]

Answer:

$5

Step-by-step explanation:

Let the price of jeans at store b be $x.

Let the price of jeans at store a be $7x/8.

But the price of jeans at store a is $35.

Hence 7x/8 = 35

And therefore x = 40

5 0
3 years ago
Use the diagrams below to choose the statement below that is correct.
mamaluj [8]

Answer:

A has the largest surface area.

Step-by-step explanation:

Surface Area of A = 2(10*3.5) + 2(10*4) + 2(4*3.5)

= 70 + 80 + 28

= 178 in^2.

For B:

Area = 2(12*3.2) + 2(12*2.8) + 2(2.8*3.2)

= 76.8 + 67.2 + 17.92

= 161.92 in^2.

5 0
3 years ago
Examples: Which type of triangle is graphed? Classify by Side and Angle. Then find the perimeter of each
OverLord2011 [107]
24372371847174819582
7 0
2 years ago
Solve for x.<br> 2x + 4<br> 4x - 88<br> x = [?]
baherus [9]
Solve for x.
2x + 4= 8
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x = [?]
7 0
3 years ago
On a given planet, the weight of an object varies directly with the mass of the object. Suppose that an object whose mass is 7 k
Airida [17]

Answer:

21 N

Step-by-step explanation:

let mass be m and weight be w

Given w varies directly with m then the equation relating them is

w = km ← k is the constant of variation

To find k use the condition m = 7 , w = 49 , then

49 = 7k ( divide both sides by 7 )

7 = k

w = 7m ← equation of variation

When m = 3 , then

w = 7 × 3 = 21 N

3 0
3 years ago
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