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Varvara68 [4.7K]
3 years ago
13

Please help with this exercise..

Mathematics
1 answer:
valkas [14]3 years ago
4 0

Answer:

a. 1.0453 minutes/ft²

b. 120 minutes (2 hours)

c. $50

Step-by-step explanation:

a. The area is (10.5 ft)×(12.3 ft) = 129.15 ft². Then the time per square foot is ...

... (2.25 hours)/(129.15 ft²) ≈ 0.0174216 hours/ft² ≈ 1.0452396 min/ft²

b. Multiplying the number of square feet by the time per square foot gives the time for the smaller area:

... (1.0452396 min/ft²) × (114.8 ft²) = 120 min = 2 hours

c. The charge is assumed to be proportional to the time, so the charge for the smaller time is ...

... (2 hours)/(2.25 hours) × $56.25 = (8/9)×$56.25 = $50.00

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A jacket costs 50$ at the store Evan has a coupon for 15$ off.Max pays only 0.6 of the price because his father works at the sto
Arturiano [62]

Answer:

Step-by-step explanation:

The original price of the jacket at the store is $50.

Evan has a coupon for 15$ off. This means that the amount that Evans will pay is the original price - 15% of the original price. It becomes

50 - (15/100 × 50) = 50 - 7.5 = $42.5

Max pays only 0.6 of the price because his father works at the store.

This means that the amount that Max will pay is 0.6 × the original price. It becomes

0.6 × 50 = $30

Max will pay the least amount because his amount is smaller

6 0
3 years ago
What equation is represented by the equation on the graph ?
solmaris [256]

Answer: The correct option is D.

Explanation:

From the graph we noticed that the x intercept of the line is (2,0) and the y-intercept is (0,2).

If the line passing through two points then the equation of line is,

y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)

Since the ien passing through (2,0) and (0,2).

y-0=\frac{2-0}{0-2}(x-2)

y=-1(x-2)

y=-x+2

This equation is represented by option D, therefore the option D is correct.

6 0
3 years ago
What is the percent of decrease from 200 to 110? A. 45% B. 55% C. 82% D. 90%
strojnjashka [21]
A) 45%, (100-200)/200=0.45 which also equals 45% :) 
8 0
3 years ago
3. Jose has $400 in his bank account at the beginning of the year. Each month, he deposits $45 into his account. He does not wit
liq [111]

T = 45m + 400

I hope this is correct it seems like the most logical explanation.

Happy Valentine’s day! I hope I helped and have a nice day! C: <3

5 0
3 years ago
Read 2 more answers
Write 84000 in standard form
emmasim [6.3K]
<span>When you write a number in expanded form you show how much each digit values, according its place in the number. For example, in the number 123, 3 values 3, 2 values 2*10 = 20 and 1 values 1*100 = 100, so the expanded form is 100 + 20 + 3. Using this with 84,000, you have the 8 is in the place of ten thousands, 4 is in the place of one thousand, 0 is in the place of hundreeds, 0 is in the place of tens, and 0 is in the place of units. So, the expanded form is: 80,000 + 4000. </span>
7 0
3 years ago
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