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skelet666 [1.2K]
2 years ago
11

(b) The sum of a number and its reciprocal is 2 1/6.Find the number

Mathematics
1 answer:
Phoenix [80]2 years ago
4 0

Answer:

Step-by-step explanation:

n+1/2n=7/2

2n^2+1/2=7/2

4n^2+2=14

4n^2=12

n^2=3

n=radical3

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Suppose 8x + 16 ice cream cones
kvv77 [185]

Answer:

B. 152 + 7

Step-by-step explanation:

(8x + 16) + (7x - 9)

8x + 16 + 7x - 9

15x + 16 - 9

15x + 7

None of these options have this answer, so we see A and B:

A. x + 7

B. 152 + 7

It can't be A because we have 15x and A is x + 7

By process of elimination we have B. 152 + 7

x = 10 and 2/15

8 0
2 years ago
Some people advise that in very cold weather you should keep the gas tank in your car more than half full Louis car had 6.9 gall
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15-6.9=8.1
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4 0
2 years ago
Ali and Ayesha shared an amount of money in the ratio 5:6. Ali received 20 bucks.How much did Ayesha receive?
Mars2501 [29]

Answer:

Your answer is $24

Step-by-step explanation:

5*4 is 20, so all that you have to do it 6*4

8 0
2 years ago
B. Pablo's goal is to have $5,000 after 4 years. Is this possible if he
Keith_Richards [23]

Complete question is;

If Pablo invests $4200 for 3 years and earns $630

A) what is the simple interest rate?

B) Pablo’s goal is to have $5000 after 4 years. Is it possible with a rate of 6%? Explain.

Answer:

A) Rate = 5%

B) Yes, it is possible for him to earn $5000 after 4 years with an interest rate of 6%

Step-by-step explanation:

A) Formula for interest is;

i = PRT

We are given;

i = 630

P = 4200

T = 3

Making R the subject;

R = i/PT

R = 630/(4200 × 3)

R = 0.05

This is 5%

B) Formula for value of principal after interest period is;

A = P(1 + RT)

P = 4200

R = 6% = 0.06

T = 4 years

Thus;

A = 4200(1 + (0.06 × 4))

A = $5208

Thus, it is possible for him to earn $5000 after 4 years with an interest rate of 6%

3 0
2 years ago
Evaluate each expression if m = 3 and n = 7. n to the power of 2 - 2m
Murljashka [212]

Answer:

7 to the power of 2 - 2 * 3 is equal to 43

Step-by-step explanation:

3 0
2 years ago
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