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ankoles [38]
2 years ago
14

How do I solve n x 721= 72.1 and .074 x n = 74

Mathematics
1 answer:
erica [24]2 years ago
4 0
N x 721 = 72.1
721n = 72.1 (put it in an easier format)
n = 0.1 (divide both sides by 721)

0.074 x n = 74
0.074n = 74 (put it in an easier format)
n = 1000 (divide both sides by 0.074)

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Truck A costs $600 more that Truck B. However, it burns 0.06 gallon/mile compared to 0.07 gallon/mile for truck B. Both trucks h
qwelly [4]

Answer:

  1,778

Step-by-step explanation:

Let C and S represent the cost and salvage value of Truck B, respectively. Let X represent the number of miles per year that answers the question.

Truck A's cost for 10 years is ...

  A = C+600 +(0.06)(2.25)(10X) -(S+200)

Truck B's cost for 10 years is ...

  B = C +(0.07)(2.25)(10X) -S

We want to find X such that Truck A's cost is lower, so ...

  C -S +1.35X +400 < C -S +1.575X

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1778 miles driven per year (or more) makes Truck A a better option.

5 0
2 years ago
the chorus has 35 members. which expression represents the number of ways a group of 6 members can be chosen to do a special per
zimovet [89]
You have to choose 6 members from the group of 35 people. So there are \binom{35}{6} ways to do it.
3 0
2 years ago
Read 2 more answers
Suppose in the next year, 2007, College D's expenses and enrollment remain about the same, but in addition to their current reve
Olin [163]

This question is incomplete, here is the complete question:

Suppose in the next year, 2007, College D's expenses and enrollment remain about the same, but in addition to their current revenues, they receive an additional $50,000,000 grant. This would allow them to reduce average tuition by how much?

A) $1388.89

B) $3571.43

C) $5555.56

D) $9500.00

E) $25888.89

number of students = 36,000

Answer: A) $

1388.89

Step-by-step explanation:

the college received additional grant which is $50,000,000

and the number of students is 36,000,

and we also know that expenses and enrollment remained the same.

So if we have more money (grants) and nothing changed (expenses remain the same)

dividing the grant by the number of students will show just how much the average tuition fee would be reduced

therefore R = G/n

R = 50,000,000 / 36000

R = 1,388.888 ≈  $1388.89

7 0
2 years ago
Which of the following situation could be represented by the expression -3+3
Crazy boy [7]
The answer you are looking for is B.

This is because Juan has a fine of three dollars (-3), and he pays it off (+3) which means B. shows the proper expression.

I hope this helps!
8 0
2 years ago
A pet store has 15 birds and 75 fish.
Ludmilka [50]

Answer:

1/5

Step-by-step explanation:

6 0
2 years ago
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