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grandymaker [24]
3 years ago
10

Solve 15=3n+6p, for n

Mathematics
2 answers:
Studentka2010 [4]3 years ago
8 0
This is how I solved it

Fynjy0 [20]3 years ago
7 0

Answer:

n=5-2p

Step-by-step explanation:

STEP 1: <em>Rewrite the equation as  3 n + 6 p = 15 .</em>

3n+6p=15

STEP 2: <em>Subtract  6 p  from both sides of the equation.</em>

3n=15-6p

STEP 3: <em>Divide each term by  3  and simplify.</em>

n=5-2p

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11 more than five if a certain number is twenty more than 2 times of that number. what is the number?
Thepotemich [5.8K]
11 more than five of a certain number would be written as 5x+11 and it is (means equal to) twenty more than two times that number, which would be 2x+20. So the equation would be
5x+11=2x+20
-2x -2x (get the x's on one side)
3x+11=20
-11 -11 (get the numbers on one side)
3x=9
/3 /3 (divide by 3, so you can get the x by itself)
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4 0
3 years ago
What multiplies to 10 and adds to 9?
bearhunter [10]
2 because 5 times 2 is 10 and 2 plus 7 is 9
4 0
3 years ago
Staples sell for $.60 a box. How many boxes can be bought for $3.45?
True [87]

Answer:

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Step-by-step explanation:

3.45 divided by $.60 is 5.75 and u cannot get .75 boxes of staples so it rounds to 5.

6 0
4 years ago
Read 2 more answers
John Doe, a super-genius student (known also under his nick-name Wile E. Coyote, super-genius) has just graduated from SPEA and
kirill [66]

Answer: See explanation

Step-by-step explanation:

a. Construct a decision tree for Wile

The solution to the question has been attached.

b. What is the expected value of the new car?

= [(0.2 × $10,000) + (0.8 × $18,000)] - $22,000

= $2000 + $14400 - $22000

= $16400 - $22000

= -$5600

c. What is the expected value of the used car?

= [(0.4 × $4000) + (0.6 ×$9000] - $12000

= $1600 + 5400 - $12000

= $7000 - $12000

= -$5000

d. What is the expected value of leasing the car?

= [(0.1 × -$2000) + (0.9 ×0)] - $8500

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8 0
3 years ago
What is 1,157 divided by 9
mihalych1998 [28]
The answer is 128.5555555555556
You’re welcome :)
Simplified: 128.6
4 0
4 years ago
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