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3 years ago

2.25(a+1.3)=20.7 What is the value of a?

Mathematics

1 answer:

ludmilkaskok [199]3 years ago

7 0

Answer:

a=7.9

Step-by-step explanation:

2.25(a+1.3)=20.7 *Distribute (multiply) the 2.25 throughout the parenthesis

2.25a+2.925=20.7 *Subtract 2.925 from both sides

2.25a=17.775 *DIvide by 2.25

a=7.9

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The ratio of the length of an airplane wing to its width is 9 to 1. If the length of a wing is 40.4 meters, how wide must it b

VARVARA [1.3K]

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3 years ago

I keep getting several answers, and I’m not sure how to solve this ? Help me pleaseee!!

algol [13]

Answer:

Perimeter= 44.2 inches

Area= 70 inches squared

Step-by-step explanation:

Perimeter- Add all your sides together (10+ 17.2+2+3+7+5=44.2)

Area- 1/2bh (b=base, h=height)

Your base is the bottom of the triangle, so 2+7+5=14.

14 is your base

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1/2 *14*10

1/2 of 14 is 7

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Don't forget to write inches squared or it will be wrong

Hope this helps :)

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3 years ago

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Inessa [10]

$\huge \bf༆ Answer ༄$

Here's the solution ~

Area of floor is ;

${ \qquad{ \sf{ \dashrightarrow}}} \: \: \sf \:10 \times 12$

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${ \qquad{ \sf{ \dashrightarrow}}} \: \: \sf \:90 \: ft {}^{2}$

So, the percentage of floor covered by rug is ~

${ \qquad{ \sf{ \dashrightarrow}}} \: \: \sf \: \dfrac{90}{120} \times 100$

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2 years ago

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Step-by-step explanation:

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3 years ago

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A car is traveling down a highway at a constant speed, described by the equation LaTeX: d=65td=65t, where represents the distanc

maks197457 [2]

Answer: The car travels 97.5 miles in 1.5 hour.

Step-by-step explanation:

Given: A car is traveling down a highway at a constant speed, described by the equation , described by the equation $d=65t$ , where represents the distance, in miles, that the car travels at this speed in<em> t</em> hours.

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3 years ago