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Fantom [35]
3 years ago
6

HELPPPP!!!!! PLEASEEE IM BEING TIMED !!!!!!!!!!!

Mathematics
1 answer:
kodGreya [7K]3 years ago
7 0

Answer:

x=89

Step-by-step explanation:

We can plug into the formula for the mean to get (87+73+84+82+x)/5=83.

We can combine like terms on the left side to get (326+x)/5=83.

We can multiply by 5 on both sides to get 326+x=415.

We can finally subtract 326 from both sides to get x=89.

So, the answer is \boxed{x=89} and we're done!

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How would i simplify 1/2 (8x+2)
Alex17521 [72]

Answer:

4x + 1

Step-by-step explanation:

by using the distributive property (images)

so it would be 1/2*8x + 1/2*2

7 0
3 years ago
Read 2 more answers
Lolita deposited 500 in her savings account that earns 5% intrest compounded anually. She forgot about it until now, 15 years la
Sonja [21]

Answer:

P = 1039.5

Step-by-step explanation:

Given:-

- The initial amount deposited, Po = 500

- The interest rate applied, I = 5% compounded annually

Find:-

- The amount on her bank statement after 15 years?

Solution:-

- We see that the principal amount increases every year and no transactions have been made in the course of 15 years.

The total amount left in her savings account would be given by the following formula:

                         P = Po * ( 1 + I/100 )^n

- Where, n = number of years passed since deposit. (15 years)

                        P = 500 * ( 1 + 5/100 )^15

                        P = 500 * (1.05)^15

                        P = 1039.5  

6 0
3 years ago
What is the area of the following circle
shtirl [24]

Answer: 25 pi

Step-by-step explanation:

7 0
3 years ago
Solving Equations 3k+10=2k-21
Nikolay [14]

3k+10=2k-21

move 2k to the other side

sign changes from +2k to -2k

3k-2k+10=2k-2k-21( combine like terms)

3k-2k+10= -21

k+10=-21

move +10 to the other side

k+10-10= -21-10

k= -21-10

answer:

k= -31

6 0
4 years ago
8. Solve for the given variable in the following equations. (4 marks total)
____ [38]

Step-by-step explanation:

  • c

V= π*r²*h

V/π = r²*h

v/(π*r²) = h

  • d

\frac{x+y}{3} = 5

x+y = 15

x = 15-y

6 0
3 years ago
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