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larisa [96]
3 years ago
14

The number of boys in a school is 120% the number of girls at the school. What is the number of boys if there are 320 girls?

Mathematics
2 answers:
ale4655 [162]3 years ago
6 0

Answer:

384

Step-by-step explanation:

120% is the same as 1.2.

Multiply: 320 * 1.2 = 384 boys

docker41 [41]3 years ago
5 0

Answer:

384

Step-by-step explanation:

120%= 1.2.

Multiply: 320 * 1.2 = 384 boys

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Which expression is equivalent to the given expression? 2√20 × 4√6
lapo4ka [179]

Answer:

16 sqrt(30)

Step-by-step explanation:

2√20 × 4√6

Multiply

2*4  sqrt(20*6)

8 sqrt(120)

Simplifying

8 sqrt(4 *30)

We know sqrt(ab) = sqrt(a) sqrt(b)

8 sqrt(4) sqrt(30)

8 *2* sqrt(30)

16 sqrt(30)

7 0
3 years ago
=
svet-max [94.6K]

Answer:

The polygon has 9 sides

Step-by-step explanation:

we know that

A regular polygon has equal length sides and equal interior angles

step 1

Find the measure of the interior angle

Remember that

The interior angle plus the exterior angle must be equal to 180 degrees (form a linear pair)

Let

x ----> the measure of each interior angle in the regular polygon

so

x+40^o=180^o

solve for x

x=180^o-40^o=140^o

step 2

Find the number of sides of the regular polygon

we know that

The measure of each interior angle in a regular polygon is given by the formula

x=\frac{(n-2)180^o}{n}

where

n is the number of sides of the polygon

substitute the given values

140^o=\frac{(n-2)180^o}{n}

solve for n

140n=180n-360\\180n-140n=360\\40n=360\\n=9\ sides

therefore

The polygon has 9 sides

8 0
3 years ago
What is the profit the performer makes at a performance where 8 people attend?
otez555 [7]
120 : 8 = 15
and 15 x 20 = 300, so the answer is C
4 0
3 years ago
Find the equation of the line with the given slope and containing the given point. slope -7/10; through (-8,0)
Kisachek [45]

Answer:

y = -\frac{7}{10}(x + 8)

Step-by-step explanation:

To write the equation of a line, substitute m = -7/10 and the point (-8,0) into the point slope formula.

y - y_1=m(x-x_1)\\y - 0 = -\frac{7}{10}(x --8)\\y = -\frac{7}{10}(x + 8)

5 0
2 years ago
Please help me answer these e questions pleasesssss
Korvikt [17]

Answer:

4) 8^14

7) h^7

10) 29^8 over 10^8

Step-by-step explanation:

If the numbers have the same base, just add their exponents together. So 10 plus 4 is 14.

Same thing for the second problem, since you have the same base, just add the exponents together. 6 plus 1 is 7

The bases are the same so just add the exponents, 7 plus one is 8.

(-2.9)^8

Convert it into a fraction: -(29/10)^8

Raise the fraction to the power (8) and the numerator and denominator to that power: 29^8/10^8

Hope this helps :)

8 0
3 years ago
Read 2 more answers
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