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2 years ago

The 5 positive integers a, a, a, b, and c have an average of a. What is the value of (b+c)/2?

Mathematics

1 answer:

makkiz [27]2 years ago

3 0

We are given that a+a+a+b+c=5a=a+a+a+a+a
subtract a+a+a from both sides, then
b+c=a+a
divide by two,
(b+c)/2=(a+a)/2=a

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Halp me plez I dont wanna fail ( MUST BE A EXPRESSION)

Scilla [17]

Answer:

2x+15=33

Step-by-step explanation:

Let n be the number of days he has been doing sit ups, not counting the first day. Since he does 2 more sit-ups for each day, then the number of additional sit-ups is 2n.

Since he started doing 15 sit-ups on the first day, the total number of sit-ups

after x days would be 2n+15.

Since he did a total of 33 sit ups today, then 2n+15=33

4 0

2 years ago

The volume of a box (v) varies directly with its length (l) if one of the boxes has a volume of 325 cubic inches and a length of

stiks02 [169]

Answer:

The constant of proportionality for the group of boxes is: 25

Step-by-step explanation:

Proportion means that change in one quantity causes change in other quantity. Direct variation means that increase in one quantity causes increase in the other quantity.

Let l be the length and v be the volume

Then according to given statement

V∝l

Removing the proportionality symbol introduces a constant in the equation

$V = kl$

Putting V = 325 and l = 13

$325 =k(13)\\k = \frac{325}{13}\\k = 25$

Hence,

The constant of proportionality for the group of boxes is: 25

5 0

2 years ago

The perimeter of a rectangle is 96 feet, and the width is 22 feet. What is the length

timama [110]

Answer:

Step-by-step explanation:

22+22= 44

96-44=52

52 devided by 2=26

Hope that helps:)

3 0

2 years ago

Write a model for the statement V varies jointly as h and the fifth power of r. Group of answer choices LaTeX: V=khr^5 V = k h r

hjlf

Answer:

Option A)

$V = khr^5$

Step-by-step explanation:

We are given the following in the question:

V varies jointly as h and the fifth power of r.

$V\propto h\\V\propto r^5$

Combing the two equations, we get,

$V\propto hr^5$

Now, removing the sign of proportionality and adding the constant of proportionality, we get,

$V = khr^5$

where k is the constant of proportionality.

Thus, the correct answer is

Option A)

$V = khr^5$

7 0

2 years ago

Who knows the area of this ? #struggleatmath

photoshop1234 [79]

I think it’s 6. There are 4 squares and 4 triangles. 2 triangles put together turn into a square, so that would make 2 extra squares. 4+2=6.

8 0

3 years ago