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vova2212 [387]
3 years ago
13

Help with these

Mathematics
1 answer:
Vilka [71]3 years ago
5 0

-7/10 divided by 2/5 is -35/20 or -7/4 in the simplest form

-1/4 times (-4/3) is 4/12 or 1/3 in the simplest form

-3 1/3 or -10/3 times by -2 7/10 or -27/10 is 270/30 or 9

-10 2/7 or -72/7 divided by -4 4/11 or -48/11 is 792/336 or 33/14 in the simplest from

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The slant height is used to find the volume of a square pyramid. true or false
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The answer is false.

For a square pyramid, the volume is calculated by 1/3*B*h. The height should touch the tip and lie perpendicular to the base. Slant height is used for surface area, not volume.
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8.4 x 5.2 show your work
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Answer:

43.68

Step-by-step explanation:

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What is 5.16 divided by 0.6 (pls show work)
IrinaVladis [17]

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2 years ago
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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.

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