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bulgar [2K]
2 years ago
9

What is the average of -30 -15 -20 55

Mathematics
2 answers:
defon2 years ago
8 0

Answer:

-2.5

Step-by-step explanation:

-30 + (-15) + (-20) + 55 = -10. Then you divide it by how many numbers there are (4). Which equals - 2.5. If this is wrong, then round up to -3.

IRINA_888 [86]2 years ago
6 0

Answer:

{ \tt{ =  \frac{ (- 30) + ( - 15) + ( - 20) + 55}{4} }} \\  \\  = { \tt{ \frac{ - 10}{4} }} \\  \\  = { \tt{ -  \frac{5}{2} }}

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kari74 [83]

A. 7200 feet ÷ 3 minutes = x

Hope it helps!

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7 0
3 years ago
Which if the following rules best describes the matrix below?
crimeas [40]

Answer:

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Step-by-step explanation:

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7 0
2 years ago
One gram of protein contains 4 calories. One gram of fat contains 9 calories. A snack has 60 calories from p grams of protein an
nikitadnepr [17]

Answer:

1.5 grams of protein.

Step-by-step explanation:

The equation that represents the relationship between protein and fat is as follows :

4p + 9f = 60 ....(1)

We need to find the grams of protein are there if there are 6 grams of fat in the snack.

Put f = 6 in the above equation (1).

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Subtract 54 to the both sides,

4p + 54-54 = 60-54

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4 0
3 years ago
It costs $42 for 7 staplers. what is the unit rate for the stapler?
murzikaleks [220]

Answer:

The answer is 6

Step-by-step explanation:

42 divided by 7=6

5 0
3 years ago
Help me please!
masya89 [10]

Answer:

951.15 ltr

Step-by-step explanation:

first you convert inch into cm just to make things easier

1 inch = 2.54cm

so,

radius(r)= 24 inch = 24×2.54= 60.96cm≈ 61 cm

then calculate the volume of the sphere

i.e.

V = 4/3(πr³)= 4/3×22/7× 61³= 951158.47 cm³

Now that we have volume

we know that,

1 ltr = 1000cm³

sooo,

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8 0
3 years ago
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