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Svetach [21]
3 years ago
7

Hideki buys a skateboard that costs c dollars. After 6.5% sales tax is added, the total cost can be expressed by the

Mathematics
1 answer:
poizon [28]3 years ago
4 0
I believe the answer is D, that is the only one that makes sense.




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What multiplier would you use to decrease a value by 44%
11Alexandr11 [23.1K]

Answer:

I think the answer is4k3+0 or 4

8 0
3 years ago
A jar contains 17 yellow and 12 green marbles. You randomly draw one marble from the jar then
dexar [7]

Answer:

204/841

Step-by-step explanation:

17/29 times 12/29

3 0
3 years ago
HELP PLEASE!
Citrus2011 [14]
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6 0
3 years ago
Read 2 more answers
a chef is going to use a mixture of two brands of Italian dressing. The first brand contains 5% vinegar and the second Brian con
tankabanditka [31]

Answer:

  • 273 mL of 5%
  • 117 mL of 15%

Step-by-step explanation:

Let q represent the quantity of 15% dressing used. Then the amount of 5% dressing is (390 -q). The amount of vinegar in the mix is ...

  0.15q + 0.05(390 -q) = 0.08(390)

  0.10q = 31.2 -19.5 = 11.7 . . . . . . subtract 0.05(390) and simplify

  q = 117 . . . . . . . . . . . . . . . . . . multiply by 10

  390-q = 273

The chef should use 273 mL of the first brand (5% vinegar) and 117 mL of the second brand (15% vinegar).

__

<em>Additional comment</em>

You may have noticed that the value of q is (0.08 -0.05)/(0.10 -0.05)×390. The fraction of the mix that is the highest contributor is the ratio of the difference between the mix value and least contributor, divided by the difference between the contributors: (8-5)/(15-5) = 3/10, the fraction that is 15% vinegar. This is the generic solution to mixture problems.

7 0
3 years ago
The graph shows the relationship between the distance a truck can travel and the amount of gasoline used. (5,35) What is the uni
juin [17]
The unit rate is the slope

y=mx+b

m=slope

b=y intercept

equation is y=7x

slope=7

y intercept=0

slope=unit rate because if you use 5 gasoline then you go 5 times 7 miles or 35 miles

The unit rate is 7

Hope I helped :)
8 0
3 years ago
Read 2 more answers
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