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4 years ago

Helpppp failingggg mathhh

Mathematics

1 answer:

Inga [223]4 years ago

6 0

If they are congruent (equal) then we can say...

x=y-1 and 3x-2=2y+1

If we substitute x=y-1 in the second equation we get:

3(y-1)-2=2y+1

3y-3-2=2y+1

3y-5=2y+1

y-5=1

y=6, and since x=y-1

x=5

So x=5 and y=6

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Solve for x. 2x−5=−x+7

sasho [114]

Answer:

x = 4

Step-by-step explanation

2x−5+x=−x+7+x

3x−5=7

3x−5+5=7+5

3x=12

x=4

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3 years ago

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If 60% of A is 20% of B, then B is what percent of A?<br> a. 3%<br> b. 30%<br> c. 200%<br> d. 300%

aleksley [76]

Answer:

d. 300%

Step-by-step explanation:

The given relation is ...

60%·A = 20%·B

Dividing by 20%, we see that ...

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3 years ago

Given that KD is congruent to AT prove that angle K is congruent to angle T

Mademuasel [1]

KD is congruent to AT as:

<h3>angles are of equal measure</h3><h3>sides KD and TA are equal</h3><h3>sides DT and KA are equal</h3>

The figure is kite as has two pairs of same sides.

<h3>They are constructed in a way of having same angle.</h3>

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2 years ago

An investor puts $2,500 into a life insurance policy that pays 8.5% simple annual interest. If no additional investment is made

Dima020 [189]

Answer: Option 'B' is correct.

Step-by-step explanation:

Since we have given that

Principal amount (P)= $2500

Rate of simple annual interest (R) = 8.5%

Number of years (T)= 10

As we know the formula for "Simple Interest ":

$Interest=\frac{P\times R\times T}{100}\\\\Interest=\frac{2500\times 8.5\times 10}{100}\\\\Interest=\$2125.00$

Hence, Option 'B' is correct.

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3 years ago

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A student is chosen at random from a large statistics class and asked how much time (in whole hours) she spent studying during t

allochka39001 [22]

Answer:

Step-by-step explanation:

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3 years ago