3 years ago

Can someone help me answer some of these questions?

Mathematics

1 answer:

ss7ja [257]3 years ago

7 0

Answer:55

Step-by-step explanation:

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A car uses 8 gallons of gas to travel 310 miles. determine the constant of proportionality and write an equation:

Allisa [31]

Answer: 38.75x = y

Step-by-step explanation:

You divide 310 by 8 which gives you 38.75.

310/8 = 38.75

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4 years ago

Matt paid $450 in interest on a 15 month note for<br> $5600. Find the rate of interest paid.

Olin [163]

Answer:

The rate is 6.43%

Step-by-step explanation:

Given

$I = 450$ --Interest

$P = 5600$ -- Principal

$T= 15\ months$ --Time

Required

Determine the rate

Using simple interest formula:

$I = PRT$

Make R the subject

$R = \frac{I}{PT}$

Convert time to years

$T= 15\ months$

$T =\frac{15}{12}\ years$

$T =1.25\ years$

Substitute values for I, P and T

$R = \frac{450}{5600*1.25}$

$R = \frac{450}{7000}$

$R = 0.0643$

Convert to percentage

$R = 0.0643*100\%$

$R = 6.43\%$

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3 years ago

In a week, 12 hands laid 72 eggs. What is the unit rate for eggs per hen?

9966 [12]

The answer is 6 eggs per hen. You divide 72 by 12 to get 6. Hope it helps.

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3 years ago

Mario found this relationship between the quantities in the table? Which error did Mario make?

wlad13 [49]

Mario made the mistake on everything and he needs help

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3 years ago

What should you multiply the top equation by so that y is eliminated when the

VLD [36.1K]

Your answer is D. 2 :)

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3 years ago

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