2 years ago

What is the area and perimeter

Mathematics

1 answer:

Sergeeva-Olga [200]2 years ago

5 0

b. answer is two

a. answer is 2.5

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A)<br>evaluate :<br>(iii) (11.6)^2

IrinaVladis [17]

Answer is 134.56, you’re welcome

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2 years ago

miranda went to the music store to purchase some items. the sales tax was 5 percent per item. if she bought a dvd for $19, how m

posledela

$19/1.05= $18.095 rounds to $18.10
The sale tax on the item is $0.90

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2 years ago

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A flying carpet flies 2.4 miles with the wind in the same amount of time it flies 1.4 miles against the wind. The wind speed is

Ainat [17]

Answer:

$15.2~mph$

Step-by-step explanation:

Let the time flown by the flying carpet be $t$ . Then, we have that $(2.4)/t=(1.4)/t+2*4$ .

We multiply both sides of the equation by $t$ to get $2.4=1.4+8t$ .

We subtract $1.4$ from both sides to get $1=8t$ .

We divide both sides of the equation by $t=1/8$ .

We know that the speed of the flying carpet in still wind is the average of the rates of the speed of the flying carpet with the wind and against the wind.

The speed with wind is $(2.4)/(1/8)=19.2$ mph.

The speed against wind is $(1.4)/(1/8)=11.2$ mph.

The speed in still wind is $(19.2+11.2)/2=(30.4)/2=15.2$ .

Therefore, the answer is $\boxed{15.2~mph}$ and we're done!

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2 years ago

How to find the perimeter of a triangle

Alecsey [184]

Answer:

Analyze then add

Step-by-step explanation:

Basically, just analyze the lengths of the sides, and then add them together for the perimeter

Thank me later :)

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2 years ago

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12x>9 (2x-3)-15 solve for x and show steps please.

Verdich [7]

12x > 9(2x-3)-15

distribute the 9

12x > 18x-27 -15

combine like terms on the right side

12x > 18x-42

subtract 18x from both sides

-6x > -42

divide both sides by -6

x = -42 / -6 = 7

x >7

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2 years ago

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