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3 years ago

5

Can someone help me with this one?

1 answer:

hodyreva [135]3 years ago

5 0

Answer:1

Step-by-step explanation:

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If x + y =6, y +z = 7 and z + x =9, what is the average (arithmetic mean) of<br> x,y and z?

nadya68 [22]

Answer:

$\frac{22}{3}$

Step-by-step explanation:

x + y + y + z + z + x = 2x + 2y + 2z = 22

x + y + z = 22

22 ÷ 3 = $\frac{22}{3}$

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3 years ago

The product of a number and three is four less than 60. Find the number.

pantera1 [17]

hii!

n(n-4) = 60

n^2 - 4n - 60 = 0

( n - 10 )(n + 6 ) = 0

n-10 = 0 ---> n = 10 ---> 10*(10-4) = 10*6 = 60

n+6 = 0 --> n = -6 ---> -6 * (-6-4) = -6 * -10 = 60

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3 years ago

Which of the following describes point C? <br> (-2, 1)<br> (-2, -1)<br> (1, -2) <br> (-1, -2)

Mariulka [41]

The answer is (-2, -1) hope this helps!

5 0

3 years ago

Read 2 more answers

Please help , this is for my math test and i really need to pass it, i’ll give brainliest and a thanks , please this is importan

marta [7]

Answer:

the first dot is -5/4

the second dot is -3/4

the third dot is 0.25

the fourth dot is 1.5

the fifth dot is 6/3

4 0

3 years ago

What is 3/4-5/8?<br> ? Give your answer in its simplest form.

Setler79 [48]

Answer:

1 over 8

1

8

=0.125

Step-by-step explanation:

8 0

2 years ago