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Diano4ka-milaya [45]
3 years ago
7

For his long distance phone service, Deandre pays a $7 monthly fee plus 7 cents per minute. Last month, Deandre's long distance

bill was $15.47. For how many minutes was Deandre billed?
Mathematics
1 answer:
malfutka [58]3 years ago
3 0

Answer: Deandre was billed for 121 minutes.

Step-by-step explanation:

Let x represent the number of minutes for which Deandre was billed in a month.

For his long distance phone service, Deandre pays a $7 monthly fee plus 7 cents per minute. Converting 7 cents to dollars, it becomes

7/100 = $0.07

If he made x minutes of distance call in a month, his total cost would be

0.07x + 7

Last month, Deandre's long distance bill was $15.47. It means that

0.07x + 7 = 15.47

0.07x = 15.47 - 7

0.07x = 8.47

x = 8.47/0.07

x = 121

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Sara receives a 9% commission on every car she sells. The car dealership paid $20,000 for a car from an auction. The next day th
Paladinen [302]

Hey there! Your answer to this problem is 2160..

Explanantion:

Since every car Sara sells, she gets 9% of the commission, this means that at the last few step, we would have to give 9% of the total cost to Sara.

If 100% is 20,000, then 50% would be 10,000. But we have to find the cost of 20%. So what we would actually be doing is multiplying 20 with 0.01. 20x0.01 is 0.2 or 0.20.

Then you add the 4,000 to the 20,000 because it states, “the next day, they sold the car 20% more than they paid. This means that you’ll have to add it. 20,000 plus 4000 would be 24,000. So 24,000 would be the cost of the car they sold.

However they didn’t wanna know the cost of the car, they wanted to know how much Sara would get. So you would have to take 9% of the cost of the cost which would be 2,160.

Final result: $2,160

4 0
2 years ago
3x squared =118. Solve the equation. Round to the nearest hundredth if necessary.
Anit [1.1K]

Answer:

3.62

Step-by-step explanation:

118 square rooted is 10.86

10.86/3 = 3.62

8 0
1 year ago
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True false test consists of 10 questions how many ways can a student mark one answer to each answer
ololo11 [35]
2^10 = 1024 possible ways to answer the test
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3 years ago
Suppose x represents an objects weight on Earth. Write two expressions: one that you can use to find the objects weight on Mars
tatyana61 [14]
The weight of an object is the product of its mass and the acceleration of gravity.
If g[e] is the acceleration of gravity on earth, and g[M] the same for Mars and g[m] the same for the moon,
then m[M]=m[e]g[M]/g[e] and m[m]=m[e]g[m]/g[e] where m[ ] denotes mass. Note that weight=mg (measured in newtons) while mass is in kilograms.
If g[M]=g[e]/3 and g[m]=g[e]/6 approximately. Then the weight of an object on Mars will be about a third of what it is on earth, while on the moon it would be about a sixth of what it is on earth.
4 0
3 years ago
A set of numbers is shown below:
eimsori [14]

Answer:

<em><u>[</u></em><em><u>2</u></em><em><u>,</u></em><em><u>4</u></em><em><u>,</u></em><em><u>6</u></em><em><u>]</u></em>

Step-by-step explanation:

GIVEN EQUATION : 2X+3≥7

i.e, 2x≥7-3

i.e, 2x≥4

i.e, x≥4/2

i.e, x≥2

it's represent number should be greater than or equal to 2

The only number which follows the inequality from the set is 2,4&6

✌️:)

8 0
3 years ago
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