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swat32
3 years ago
15

Carlos buys a new bicycle

Mathematics
1 answer:
Bond [772]3 years ago
3 0
16% of 231 is 36.80
16% + 84% = 100%
36.80+ 231 = $267.80
Ans = $267.80
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12 plus the product of 2 and some number is equal to the product of 4 and some number minus 8 .
geniusboy [140]

Answer:

The number is 10

Step-by-step explanation:

Let x be the number

product is multiply

12 + (2x) = 4x -8

Subtract 2x from each side

12+2x-2x = 4x-2x-8

12 = 2x-8

Add 8 to each side

12+8 = 2x-8+8

20 = 2x

Divide by 2

20/2 = 2x/2

10 =x

4 0
3 years ago
Read 2 more answers
For what values of the variable does the following expression make sense:
Marianna [84]

This question revolves around the concept of domain (primarily) and range (secondarily).  The domain of the square root function is [0, +infinity).


The domain of "three times the sqrt of a" shares that domain:  [0, +infinity).

We were not asked to come up with the range, but if the range is wanted, it is

[0, +infinity).

3 0
3 years ago
If Yvonne wanted to make 3 dresses that use 4 7/8 yards of fabric each, how could she estimate to make sure she has enough fabri
Varvara68 [4.7K]
"4 7/8 yards is almost 5 yards. To make certain that you have enough fabric, round up. <span>3 dresses at 5 yard each is 15 yards."</span>
3 0
2 years ago
For what value of r is the parallelogram a rhombus
Gre4nikov [31]

Answer:

9

Step-by-step explanation:

7r+18=r²

r²-7r-18=0

factorizing

r²+2r-9r-18=0

r(r+2)-9(r+2=0

(r-9)(r+2)=0

r-9=0

r=9

check

(r²)=(9*9)=81

7r+18=7(9) + 8=81

5 0
3 years ago
John is digging a rectangular hole. The area of the rectangle is 8 square feet. John digs 4 feet down into the ground. What's th
andreev551 [17]

Answer:

32

Step-by-step explanation:

3 0
3 years ago
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