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Deffense [45]
3 years ago
10

Crystal earns $5.50 per hour mowing lawns. A. Write a rule to describe how the amount of money m earned is a function of the num

ber of hours h spent mowing lawns.B. How much does Crystal earn if she works 3 hours and 45 minutes?
Mathematics
1 answer:
Ivahew [28]3 years ago
6 0
She earns $20.625 in 3 hours and 45 mins
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An elevator is on the 20th floor. it goes down 11 floors and then up 5 floors .what floor is the elevator on noW.
amm1812

Answer: 14th floor

Step-by-step explanation:

20 - 11 + 5 = 14

4 0
3 years ago
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$13,168is invested, part at 13%and the rest at
Kryger [21]

Answer: the amount invested at 13% is $9748

the amount invested at 5% is $3420

Step-by-step explanation:

Let x represent the amount invested at 13%.

Let y represent the amount invested at 5%.

$13,168 is invested, part at 13 % and the rest at 5%. This means that

x + y = 13168

The formula for determining simple interest is expressed as

I = PRT/100

Where

I represents interest paid on the loan.

P represents the principal or amount taken as loan

R represents interest rate

T represents the duration of the loan in years.

Considering the amount invested at 13%,

P = x

R = 13%

T =1 year

I = (x × 13 × 1)/100 = 0.13x

Considering the amount invested at 5%,

P = y

R = 5%

T = 1 year

I = (x × 5 × 1)/100 = 0.05y

If the interest earned from the amount invested at

13% exceeds the interest earned from the amount invested at

5% by $1438.24, it means that

0.13x - 0.05y = 1438.24 - - -- - - - - -1

Substituting x = 13168 - y into equation 1, it becomes

0.13(13168 - y) - 0.05y = 1438.24

1711.84 - 0.13y - 0.05y = 1438.24

- 0.13y - 0.05y = 1438.24 - 1711.84

- 0.08y = - 273.6

y = - 273.6/- 0.08

y = 3420

x = 13168 - y = 13168 - 3420

x = 9748

7 0
3 years ago
Write in standard form
Keith_Richards [23]

Answer:

2.006

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2*1 = 2.  To this you are adding 6 thousandths, or 0.006.  Together, you have 2.006 (standard form).

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3 years ago
Lorena runs a landscape company. A customer wants her to plant 10 trees, but the trees have to be planted in rows with 4 trees i
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2 years ago
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