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2 years ago

10

Why is estimation an important tool ??

2 answers:

Valentin [98]2 years ago

6 0

It helps you plan ahead, and check your work to see if your answers make sense.

forsale [732]2 years ago

3 0

Estimation is a way to find out the approximation of something. It is important because it kinda leads to what the correct answer is and it is needed because you can estimate how much a bill would be or you could estimate how much is the area or size of something. It's very important...

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A number of eggs ,e, divide by 12

Arada [10]

1÷[email protected]

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2 years ago

The variables x and y vary inversely. When y is 10, x is 10. What is x when y is 20

dezoksy [38]

<span>inversely
y = k/x
k = yx
k = 10*10 = 100

when y = 20

20 = 100/x
20x = 100
x = 5

answer
</span><span> x = 5 when y is 20</span>

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3 years ago

Combine like terms in the expression below:<br> 9x + 4.05xy + 15y + 30y - 11x + 9.46

aev [14]

Answer: 4.05 x y − 2 x + 45 y + 9.46

Step-by-step explanation:

9x + 4.05xy + 15y + 30y - 11x + 9.46

4.05xy + 9x - 11x + 15y+ 30y+ 9.46

4.05 x y − 2 x + 45 y + 9.46

6 0

2 years ago

HELP PLEASE <br>Use greater than, equal to =, or less than sign to compare<br> 2/3 and 1/6

lana [24]

Answer:

2/3 < 1/6

Step-by-step explanation:

hope this helps

3 0

3 years ago

Read 2 more answers

An escalator lifts people to the second floor of a building, 25 ft above the first floor. The escalator rises at a 30o angle. To

melamori03 [73]

Answer:

a person travel 50 ft from the bottom to the top of the escalator

Step-by-step explanation:

An escalator lifts people to the second floor of a building, 25 ft above the first floor. The escalator rises at a 30 degree angle

The escalator forms a right angle triangle

opposite to 30 degree angle is 25 feet. to find the distance from the bottom to the top of the escalator we find the hypotenuse

let x be the hypotenuse

$sin(theta)=\frac{opposite}{hypotenuse}$

$sin(30)=\frac{25}{x}\\x sin(30)= 25\\x=\frac{25}{sin(30)} \\x=50\\$

a person travel 50 ft from the bottom to the top of the escalator

6 0

2 years ago