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tresset_1 [31]
3 years ago
10

Which expression represents 4 times the number r? A. 4 – r B. 4r C. 4 + r D. 4/r

Mathematics
2 answers:
GREYUIT [131]3 years ago
6 0
The exp. for Four times r = 4r
Crank3 years ago
5 0
D. 4/r or c.4+r ohhjhd you h
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I have k quarters, five less quarters than nickels and one more than twice as many dimes as quarters. Find the value of the coin
Alenkinab [10]

Answer:

(35k + 20) cents

Step-by-step explanation:

First of all, let us have the value of each unit:

1 quarter = 25 cents

1 nickel = 5 cents

1 dime = 10 cents

Given that number of quarter = k

Quarters are 5 lesser than Nickels, so number of nickels = k+5

One more than twice as many dimes as quarters:

k = 2 \times Number of Dimes + 1

So, number of dimes = \frac{1}{2}(k-1)

Value of quarters = 25 \times k cents

Value of nickels = 5 \times (k+5) = (5k+25)\ cents

Value of dimes = \frac{1}{2}(k-1) \times 10 = (5k-5)\ cents

So, total value of coins =

25k + 5k +25 +5k-5\\\Rightarrow (35k+20)\ cents

5 0
4 years ago
Read 2 more answers
In Scott’s backyard, he has a windmill that makes 5 ¾ of a turn every hour. How many turns does it make for 1 ½ hours?
DanielleElmas [232]

Answer: 8 5/8 turns

Step-by-step explanation:

Hi, to answer this question we have to simply to multiply the number of turns that the windmill makes per hour (5 3/4) by the time asked (1 ½ hours).

Mathematically speaking:

5 3/4 x 1 1/2 = (5x4+3)/4 x (1x2+1)/2 = 23/4 x 3/2= 69/8 or 8 5/8 (mixed form)

In conclusion, the windmill makes 8 5/8 turns in 1 1/2 hours.

3 0
3 years ago
What is the area of each section of the poster?<br><br> On no. 10.
rosijanka [135]
I hope this helps you


2 (x+x+x+x+x+24+24)=120


4x+48=60


x=3


Area =2x.24


Area =2.3.24


Area =144
6 0
4 years ago
The shape made when a solid is cut through parallel to the base is called a ____________.
Nastasia [14]

Answer:

Whatever the base of the shape is, that's the answer

Step-by-step explanation:

For example: a triangular prism cut through parallel to the base would be a triangle

6 0
2 years ago
Check attachment for question
Anestetic [448]

Answer:

I belive it is 3x^2 + x. Sometimes I'm braindead so it may be wrong.

4 0
2 years ago
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