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3 years ago

SM=3x−4, and RN=9x−20. Find the value of x

Mathematics

1 answer:

Rudik [331]3 years ago

8 0

Answer:

Option (A).

Step-by-step explanation:

Given question is incomplete; find the complete question with the attachment.

In the triangle NRL,

Points P, S and M are the midpoints of the sides NR, RL and LN respectively.

Sides SM = (3x - 4), NR = (9x - 20)

By the theorem of midpoints in a triangle,

SM = $\frac{1}{2}\text{NR}$

(3x - 4) = $\frac{1}{2}(9x-20)$

6x - 8 = 9x - 20

9x - 6x = 20 - 8

3x = 12

x = 4

Therefore, Option (A) will be the answer.

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Answer:

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Step-by-step explanation:

we have

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3 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

Problem Page A principal of $2100 is invested at 7.75% interest, compounded annually. How much will the investment be worth afte

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Answer:

After 12 years the investment will be worth $5145.

Step-by-step explanation:

The formula used for compounded interest is:

A = P(1+r/n)^nt

where,

A = future value

P = Principal Amount

r = interest rate

n = no of times interest is compounded

t = time

In the question given:

A=?

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r = 7.75% or 0.0775

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