A bookmark is shaped like a rectangle with a semicircle attached at both ends. The rectangle is 12 cm long and 4 cm wide. The diameter of each semicircle is the width of the rectangle. What is the area of the bookmark? Use 3.14 for TT.

Answers

Answer 1

Answer: Working:
Area of the rectangle= 12 x 4 = 48cm^2
Area of the semicircles=
$\pi$ x 2² = 12.56cm^2

48+12.56= 60.56

Answer: 60.56cm²

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Too much reading not enough sleeping

Find percent of change to- 1) 125cm to 87.5cm
2)132 days to 125.4 days
need it asap plzz

Answers

If you would like to solve the following equations, you can calculate it using these steps:

1) x% of 125 cm is 87.5 cm
x% * 125 = 87.5
x/100 * 125 = 87.5 /*100/125
x = 87.5 * 100 / 125
x = 70%

2) y% of 132 days is 125.4 days
y% * 132 = 125.4
y/100 * 132 = 125.4 /*100/132
y = 125.4 * 100 / 132
y = 95%

Answer:

132 days to 125.4 days

need it asap plzz

Step-by-step explanation:

Solve the following system of equations.
2x + 5y = 19
x - 2y = - 4

Answers

Answer:

Step-by-step explanation:

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2x + 5y = 19

x - 2y = -4

Multiply the second equation by 2

2x - 4y = -8

Now we have:

2x + 5y = 19

2x - 4y = -8

Subtract the second eq from the first to get:

9y = 27

/ 9

y = 3

Now substitute this value into one of the first equations

x - 2(3) = -4

x - 6 = -4

x = 2

Thus, your answer would be option B

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6w-2(4+w)=w+7 solve for w

Answers

6w - 2(4 + w) = w + 7
6w - 8 - 2w = w + 7
4w - 8 = w + 7
(4w - 8) + 8 = w + 7 + 8
4w = w + 15
4w - w = (w + 15) - w
3w = 15
3w ÷ 3 = 15 ÷ 3
w = 5

How to solve for X

4/X=12/7.5

Answers

Answer:

x = 2.5

Step-by-step explanation:

Given

$(4)/(x)$ = $(12)/(7.5)$ = 1.6

Multiply both sides by x

4 = 1.6x ( divide both sides by 1.6 ), hence

x = 2.5

1 gallon minus 1 quart, 1 pint, and 1 ounce

Answers

1 gallon minus 1 quart, 1 pint, and 1 ounce.

The smallest unit is the ounce. We need to know the number of ounces there are in 1 gallon, 1 quart, and 1 pint

1 gallon = 128 ounces
1 quart = 32 ounces
1 pint = 16 ounces

128 oz - 32 oz - 16 oz - 1 oz = 79 oz

There are 79 ounces left from the initial 1 gallon.

79 oz * 1gal/128 oz = 79 gal/128 = 0.617 gallon

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