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VMariaS [17]
2 years ago
8

A home improvement store advertises 60 square feet of flooring for $287.00 including an $80.00 installation fee. Write an equati

on represent the cost of one square foot of flooring
Mathematics
1 answer:
tia_tia [17]2 years ago
8 0
60 square feet for 287 = 287/60 = 4.78 per square foot

so ur equation would be : y = 4.78x + 80....where x is the number of square feet and y is the total cost
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Oscar has received a $4,000 gift and is looking for a bank to start a savings account. Which option
kirza4 [7]

Answer:

The best option for him would be a real interest rate of 5%.

Step-by-step explanation:

The nominal interest rate is the one that represents the percentage of increase of the money that is in a certain investment, without discounting the depreciation due to inflation or the payment of taxes.

On the other hand, the real interest rate is the one that represents the real increase in the money invested, after discounting inflation and any taxes to be paid.

Therefore, the best option for Oscar would be to invest his $ 4,000 in a savings account with a real interest rate of 5% per year.

7 0
2 years ago
Becky is an experienced swimmer. The table contains data on her times in the 100-meter freestyle event for each year over the pa
Sauron [17]
Correlation coefficient (r) = [nΣxy - (Σx)(Σy)] / [sqrt(nΣx^2 - (Σx)^2)sqrt(nΣy^2 - (Σy)^2)]
Σx = 21 => (Σx)^2 = 21^2 = 441
Σy = 671 => (Σy)^2 = 671^2 = 450,241
Σx^2 = 1 + 4 + 9 + 16 + 25 + 36 = 91
Σy^2 = 98^2 + 101^2 + 109^2 + 117^2 + 119^2 + 127^2 = 75,665
Σxy = 1(98) + 2(101) + 3(109) + 4(117) + 5(119) + 6(127) = 2,452
r = [6(2,452) - 21(671)] / [sqrt(6(91) - 441)sqrt(6(75,665) - 450,241)] = 621/sqrt(105)sqrt(3749) = 0.99

option b is the correct answer.
5 0
2 years ago
The graph shows the relationship between distance driven and gallons of gas used. Use the graph to complete the statements. The
Fantom [35]

Answer:

The car gets 30 miles to the gallon

After the car has traveled 80 miles, gallons of gas have been consumed.

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
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Marrrta [24]
Jess guessed correctly because the number of cherries in a bag is 63. 7x9=63 and 6+3= 9. 63 rounded to the nearest 10 is 60.
6 0
2 years ago
The table below shows the different times it takes Paula to drive to work each day depending on the rate at which she drives.
faust18 [17]
Speed = distance / time
30 = d / 2.5
30 * 2.5 = d
75 = d

40 = d / 1.875
40 * 1.875 = d
75 = d

50 = d / 1.5
50 * 1.5 = d
75 = d

60 = d / 1.25
60 * 1.25 = d
75 = d

24 = 75 / time
time = 75/24
time = 3.125 hours
7 0
2 years ago
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