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sashaice [31]
3 years ago
8

Sally needs a minivan. Express Rent-A-Car charges $45 per day plus $0.40 per mile.

Mathematics
1 answer:
lys-0071 [83]3 years ago
5 0

Answer:

200 times

Step-by-step explanation:

45 + 0.4x = 75 + 0.25x

45 + 0.4x - 45 = 75 + 0.25x -45

0.4x = 30 + 0.25x

0.4x - 0.25 x = 30 + 0.25x - 0.25x

0.15x = 30

Multiply by 100 on each side to make it easier.

15x = 3000

x = 200

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UNO [17]
<span>13-((4/5)+(6/8))
Make your fractions have common denominators 
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Add your fractions and simplify
13-(62/40)
or
13-(31/20)
or
13-(1 11/20)
Then turn 13 into a fraction with a common denominator! Im going to use the second fraction method (31/20)
13 written as a fraction is 13/1, its LCD with 31/20 is 20. I now multiply the top and bottom by 20
260/20
Now I rewrite the problem again
(260/20)-(31/20)
Which equals
229/20!
This is your unsimplified answer
Finally you simplify and get
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6 0
3 years ago
The Louvre is an art museum in Paris. A glass square base pyramid sits in front of the entrance to the museum. If the pyramid is
Sveta_85 [38]

Answer:

lateral area = 2320 m²

Step-by-step explanation:

The question wants us to calculate the lateral area of a square base pyramid. The square base pyramid has a side of 40 meters.The height is 21 meters.

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Using Pythagoras's theorem

c² = a² + b²

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c² = 400 + 441

c² = 841

square root both sides

c = √841

c = 29 meters

The slant height of the pyramid is 29 meters.

The pyramid has four sided triangle. The lateral area is 4 multiply by the area of one triangle.

area of triangle = 1/2 × base × height

base = 40 meters

height = 29 meters

area = 1/2 × 40 × 29

area = 580

area of one triangle = 580 m²

Lateral area = 4(580)

lateral area = 2320 m²

5 0
3 years ago
How to do number 15?
tatiyna
I think it would be 120 because it is 2 times 60 and they add up to 180 I may be wrong buts that’s what I would do
3 0
3 years ago
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MakcuM [25]
There is a problem with your question. it doesn't make sense ???
8 0
3 years ago
Evaluate the expression<br> 6a - 2b when a = 5, b=7
melomori [17]

6a - 2b

= 6(5) - 2(7)

= 30 - 14

= 16 answer

6 0
3 years ago
Read 2 more answers
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