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34kurt
3 years ago
7

Esme's tire had a leak. It originally held 30 pounds of pressure but was losing 1.8 pounds of pressure each hour. How many pound

s of pressure would there be after 7 hours?
A. 12.6
B. 17.4
C. 21
D. 28.2
Mathematics
2 answers:
N76 [4]3 years ago
7 0

Answer:

B

Step-by-step explanation:

7 times 1.8 is 12.6. 30 minus 12.6 is 17.4.

pashok25 [27]3 years ago
7 0

Answer: 17.4

Step-by-step explanation: i did the math lol XD

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Find the 8th term of the arithmetic sequence -2x+5−2x+5, -7x+8−7x+8, -12x+11, ...
miss Akunina [59]

Answer:

  -37x+26

Step-by-step explanation:

The x-coefficients have the sequence ...

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which has first term -2 and common difference of (-7 -(-2)) = -5. Then the 8th x-coefficient is ...

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The constants have the sequence ...

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which has first term 5 and common difference 8 -5 = 3. Then the 8th constant term is ...

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The 8th term of the sequence is -37x +26.

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The general term of an arithmetic sequence with first term a1 and common difference d is ...

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In the above, we have used n=8 to find the 8th term.

7 0
3 years ago
The ratio of John's money to Jimmy's money is 5:8. Jimmy spent 1/4
erma4kov [3.2K]

Answer:

a. $3600

b. 6:5

Step-by-step explanation:

Put the question into an equation:

8x - 1/4 x 8x = 5x + 450

(simplify before solving) 6x = 5x + 450

(solve) 6x-5x = 450

x = 450

This means that Jimmy had 8 x 450 $ to start with = 3600

you can check this by subtracting a quarter of 3600 from 3600 and also multiplying 450 by 5 and then obtaining their difference. You get 450!

Now ratio of new amounts:

Jimmy now has: $2700

John still has: $2250

so ratio is 2700:2250

simplify to 6:5

Hope this helps

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3 0
3 years ago
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Answer:

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Step-by-step explanation:

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3 years ago
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ratelena [41]

Answer:

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Step-by-step explanation:

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2 years ago
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amid [387]

We see here in the diagram that the base is a. We know this because the height is perpendicular to it. We also know the height is bsin(C) which, when replace h for bsin(C) and a for the base, we get A=absin(C), which is the second option.

7 0
2 years ago
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