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worty [1.4K]
3 years ago
6

20 pts-------

Mathematics
1 answer:
inessss [21]3 years ago
6 0

80% of 24 is

19.2

61% of 108 is

65.88

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You're going on a 1211-mile trip, and your car gets about 29 miles per gallon. Gas prices along your route average $3.40. Estima
Vilka [71]

Answer:

Using the estimate:

The car has to go for 1,200 miles but it consumes a gallon of gasoline for every 30 miles. The number of gallons it will need is therefore:

= 1,200 / 30

= 40 gallons

Each gallon costs $3.00 so the total cost is:

= 40 * 3

= $120

Without using the estimate:

The car has to go for 1,211 miles but it consumes a gallon of gasoline for every 29 miles. The number of gallons it will need is therefore:

= 1,211 / 29

= 41.76 gallons

Each gallon costs $3.40 so the total cost is:

= 41.76 * 3.40

= $‭141.98

<em>Using the estimate provides a lower cost of gasoline for the trip. </em>

3 0
3 years ago
Which of the following expresion is equivalint to 2d(3d-4)
Alex

Answer:

6d^2 - 8d

Step-by-step explanation:

Multiply 2d to the other two monomials

3 0
3 years ago
adam put $100 in a savings account after 10 years he had $1649 in the account what rate of interest did he earn? use the formula
Nady [450]
Using the formula
ending amount is 1649=a
p=initial amount=100
t=10
r=r

so
1649=100e^{10r}
divide both sides by 100
16.49=e^{10r}
take ln of both sides
ln(16.49)=10r
divide both sides by 10
(ln(16.49))/10=r
use calculator
0.28027=r
about 28% interest
7 0
3 years ago
Read 2 more answers
Consider (11x + 9) − (?) = 6x + 8. Which expression is missing?
o-na [289]
The expression is (5x+1)
5 0
3 years ago
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How do you even do this???
kolbaska11 [484]
Tell whether the product of Prxs and Q5x3 is defined. If so, give the dimensions of PQ.

undefined
defined; 7 x3
defined; 3 x 7
defined; 5 x 5
6 0
2 years ago
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