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4 years ago

Which value can be added to the set below without changing its mean?

Mathematics

2 answers:

Grace [21]4 years ago

6 0

Answer:

0 because it has no value.

Step-by-step explanation:

Tomtit [17]4 years ago

5 0

Answer:

Step-by-step explanation:

The mean of the first set is 15. If you add 15 to the set then it will equal 105. Then divide by 7 and then you get 15.

Hope this helps.

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Richard has four times as many marbles as john. if Richard have 18 to John they would have the same number. how many marbles has

ser-zykov [4K]

Answer:

The number of marbles Richard has 24 and John has 6.

Step-by-step explanation:

Richard has four times as many marbles as john.

If Richard have 18 to John they would have the same number.

Now, to find number of marbles each has.

Let the marbles of John be $x$ .

And the marbles of Richard be $4x.$

According to question:

$4x=x+18.$

Subtracting both sides by $x$ we get:

$3x=18.$

Dividing both sides by 3 we get:

$x=6.$

Marbles of John = $6.$

Marbles of Richard = $4x=4\times 6=24$

Therefore, the number of marbles Richard has 24 and John has 6.

6 0

4 years ago

What is the distance between (2, 4) and (6, -5)?

Lelechka [254]

Answer:

-8

Step-by-step explanation:

8 0

4 years ago

[49 + 3(4-9)] = (-17) Your answer Question 3

ExtremeBDS [4]

4-9=-5

3×(-5)=-15

49-15=34

Always start with the parentes

6 0

3 years ago

The function p(t) represents the value of a new car t years after it was manufactured.

Yakvenalex [24]

Answer:

The value of the car is 0.94 times the value of the car the previous year.

5 0

3 years ago

Read 2 more answers

a raised rectangular garden is two feet more than three times as long as it is wide. the depth of the pool is half the width. if

stepladder [879]

Answer:

49.5ft³

Step-by-step explanation:

If it is 2 ft more than 3 times as long as it is wide then:

l = 3w + 2

which means:

w = (l-2)/3

and:

d = 1/2((l-2)/3)

Now just substitute in 11 for l

w = (11 - 2)/3

w = 9/3

w = 3

d = 1/2((11-2)/3)

d = 1/2(9/3)

d = 1/2(3)

d = 1.5

So the total volume is:

11 * 3 * 1.5

49.5

8 0

1 year ago