Mathematics, 27.01.2020 01:31 ReonRamseyz

99 points plus brainiest answer.
1. mark estimates that the distance from his house to his school is 15.5 mi. the actual distance is 14.5 mi.

to the nearest tenth of a percent, what is the percent error in mark's estimate?

enter your answer in the box.

2. the price of a wallet is $31.95 and the sales tax is 7.5%.

what is the total cost of the wallet?

enter your answer in the box.

3. a sneaker store salesman had $4,125 in total monthly sales last month. he made $165 in commission from those sales.

what is the salesman's commission as a percent of his total monthly sales?

enter your answer in the box.

4. the picture below.

99 points plus brainiest answer. 1. mark estimates that the distance from his house to his sch

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Answer from: gajdmaciej9502

(1)The percentage error is 6.897 % .

(2)The total cost of the wallet is $34.35 .

(3)The salesman's commission as a percent of his total monthly sales is 4% .

(4)The interest is $5400 .

Step-by-step explanation:

First part

Formula

$Percentage = \frac{Change\ in\ value\times 100}{Exact\ value}$

Change in value = |Approx value - Exact value|

As given

Mark estimates that the distance from his house to his school is 15.5 mi. The actual distance is 14.5 mi.

Approx value = 15.5 mi

Exact value = 14.5 mi

Change in value = |15.5 - 14.5|

= 1

Put all the values in the formula

$Percentage\ error = \frac{1\times 100}{14.5}$

$Percentage\ error = \frac{100}{14.5}$

Percentage error = 6.897 % (Approx)

Thus the percentage error is 6.897 % .

Second part

The price of a wallet is $31.95 and the sales tax is 7.5%.

7.5% is written in the decimal form

$= \frac{7.5}{100}$

= 0.075

Sales tax price = 0.075 × Price of the wallet

= 0.075 × $31.95

= $2.4 (Approx)

Total cost of the wallets = Cost of the wallet + Sales tax price

= $31.95 + $2.4

= $34.35

Therefore the total cost of the wallet is $34.35.

Third part

Formula

$Percentage = \frac{Part\ value\times 100}{Total\ value}$

A sneaker store salesman had $4,125 in total monthly sales last month. He made $165 in commission from those sales.

Part value = $165

Total value = $4125

Put all the values in the formula

$Percentage = \frac{165\times 100}{4125}$

$Percentage = \frac{16500}{4125}$

Percentage = 4%

Therefore the salesman's commission as a percent of his total monthly sales is 4% .

Fourth part

Formula

$Simple\ interest = \frac{Principle\times Rate\times Time}{100}$

Principle = $12000

Rate = 15%

Time = 3 years

Put all the values in the formula

$Simple\ interest = \frac{12000\times 15\times 3}{100}$

$Simple\ interest = \frac{540000}{100}$

Simple interest = $5400

Therefore the interest is $5400 .

Answer from: Quest

fahrenheit

step-by-step explanation:

fahrenheit is more precise than celsius. the ambient temperature on most of the inhabited world ranges from -20 degrees fahrenheit to 110 degrees fahrenheit—a 130-degree range. on the celsius scale, that range is from -28.8 degrees to 43.3 degrees—a 72.1-degree range. this means that you can get a more exact measurement of the air temperature using fahrenheit because it uses almost twice the scale.

Answer from: Quest

answer: ♡♡♡♡♡♡♡♡♡♡

step-by-step explanation:

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