What is... 15% of x Please help

Mathematics

1 answer:

lukranit [14]2 years ago

7 0

This answer will probably be 3/20 x not sure

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Annie estimates that the height of a bookcase is 78.25 in. The actual height is 75.50 in. To the nearest tenth of a percent, wha

Vinil7 [7]

Answer

Find out the percent error in Annie's estimate .

To prove

Formula

$Percentage\ error = \frac{error\times 100}{exact\ value}$

As error = approx value - exact value

As given

Annie estimates that the height of a bookcase is 78.25 in.

The actual height is 75.50 in.

approx value = 78.25 in.

actual value = 75.50 in.

error = 78 .25 - 75 .50

= 2.75

put in the formula

$Percentage\ error = \frac{2.75\times 100}{75.50}$

$Percentage\ error = \frac{27500}{7550}$

Percentage error = 3.64 % (approx)

Therefore the Percentage error be 3.64 % (approx).

6 0

3 years ago

Read 2 more answers

Consider this equation:

aleksandrvk [35]

Answer:

Plan: separate the variable term from the constant term; divide by the coefficient of the variable.
Steps: add 4 to both sides; collect terms; divide both sides by 3.

Step-by-step explanation:

The first step is to look a the equation to see where the variable is in relation to the equal sign, and whether there are any constants on that same side of the equal sign.

Here, the variable terms are on the left, and there is a constant there, as well. The plan for solving the equation is to eliminate the constant that is on the same side of the equation as the variable, then divide by the coefficient of the variable. To find that coefficient, we need to collect terms. In summary, the plan is to ...