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3 years ago

In a class of 30 children, 60 % are female. How many students are boys?

Mathematics

1 answer:

Alex Ar [27]3 years ago

5 0

Answer:

7 i think

Step-by-step explanation:

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the hard-cover edition of a book cost 3 times as much as the paperback edition. Both editions together cost $26.60. Find the cos

posledela

Answer:

The Hardcover costs: $19.95 and the Paperback is: $6.65.

Step-by-step explanation:

6.65 * 3 = 19.95

19.95 + 6.65 = 26.60

4 0

3 years ago

Based on the graph, what is the perimeter of an octagon?

Ghella [55]

Answer:

The perimeter of the regular octagon is 104 units

Step-by-step explanation:

we know that

The segment LM is the length of one side of the octagon

we have the coordinates

L(-6,-2) and M(6,3)

step 1

Find the distance LM

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

substitute the values

$d_L_M=\sqrt{(3+2)^{2}+(6+6)^{2}}$

$d_L_M=\sqrt{(5)^{2}+(12)^{2}}$

$d_L_M=\sqrt{169}$

$d_L_M=13\ units$

step 2

Find the perimeter

we know that

A regular octagon has eight equal sides

To find out the perimeter, multiply by 8 the length of the segment LM

$P=8(13)=104\ units$

5 0

3 years ago

7 yards, 2 feet = ___________ inches

Verdich [7]

1 foot = 12 inches

Multiply to find the amount of inches.

12 * 2 = 24

Therefore, the answer is 24 inches.

Best of Luck!

8 0

3 years ago

HELP ASAP !!! The table shows several points for function j(t).

max2010maxim [7]

Answer:

d on edge

Step-by-step explanation:

its just the table flipped

4 0

3 years ago

Read 2 more answers

13=5+2(x-17) Help me pls

ozzi

<h3>The value of x is equal to 21.</h3>

13 = 5 + 2(x - 17)

Distributive property.

13 = 5 + 2x - 34

Add 34 to both sides.

47 = 5 + 2x

Subtract 5 from both sides.

42 = 2x

Divide both sides by 2.

x = 21

3 0

3 years ago