3 years ago

What is a way to use the properties of similar triangles to find measurements

Mathematics

1 answer:

muminat3 years ago

8 0

Use proportions and use letters for unknown measurements

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There are four consecutive integers. The sum of the first and third number is 140. what are the integers? please show work:)

marta [7]

69, 70, 71, and 72
69 and 71 are the first and third digits. 69+71=140

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3 years ago

Oscar invests $20,000 in three investments earning 6% ,8% and 10%. He invests $9000 more in the 10% investment than in the 6% in

Hatshy [7]

This problem is mainly concerned with setting up an equation.

let's add the interest rates times their respective investment amounts:

$a = (9000 + x)0.10$

$b = x \times 0.06$

$c=(20000 - ((9000 + x) + x)) 0.08$

simplify:

$c = (11000 - 2x) \times 0.08$

sum of interest:

$1780 = a + b + c$

1780 = (9000+x) 0.10 + x 0.06 + (11000-2x)0.08

$1780 = 1780 + 0 \times x$

$0=0$

solution:

He does not have any invested in the 6%, while he has 9000 invested at 10% and 11,000 invested at 8%

to check:

$9000 \times 0.10 + 11000 \times 0.08$

$= 900 + 880 = 1780$

So this ended up being a trick problem because he does not actually have any invested in the 6% option.

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3 years ago

The perimeter of a square depends on the length of its sides. Answer the questions below regarding the relationship between the

Nataly_w [17]

Step-by-step explanation:

plz attach the question

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3 years ago

The length of a rectangle is 1 ft more than twice the width, and the area of the rectangle is 66ft. Find the dimensions of the r

Katena32 [7]

This is how I solve this problem