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2 years ago

If the simple interest on $4,000 for 7 years is $1,400, then what is the interest rate?

Mathematics

1 answer:

alisha [4.7K]2 years ago

7 0

$1400 = $4000 × 7 × r / 100

$1400 = 28000 × r / 100

$ 1400 = $ 280 × r

rate = $1400 ÷ $ 280

rate = 5

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Willie and Emily each purchase one raffle ticket. If a total of seven raffle tickets are sold, what is the probability that Will

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1/42

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3 years ago

Find y if x=15 if y is 6 x=30

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I'm not sure if this question was correctly transcribed but is it suppose to read find if x=15, find y = 6x+30 ?

If so then y = 120

The way it is written now, If x = 15 then 6x cannot equal 30 which is why I asked. Sorry if I'm not understanding the question.

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3 years ago

4C. Quintin is using the three different shaped

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number of different shapes of tiles available = 3

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area of each square shape tiles, A = 2000 cm²

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width of the floor, W = 6 m = 600 cm

To find:

the smallest number of tiles Quintin will need in order to tile his floor

Among the three different shapes available, total area of one is calculated as;

$A_{one \ square \ type} = 5 \times 2000 \ cm^2 = 10,000 \ cm^2$

Area of the floor is calculated as;

$A_{floor} = 1000 \ cm \times 600 \ cm = 600,000 \ cm^2$

The maximum number tiles needed (this will be possible if only one shape type is used)

$maximum \ number= \frac{Area \ of \ floor}{total \ area \ of \ one \ shape \ type} \\\\maximum \ number= \frac{600,000 \ cm^2}{10,000 \ cm^2} \\\\maximum \ number= 60$

When all the three different shape types are used we can get the smallest number of tiles needed.

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Learn more here: brainly.com/question/13877427

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