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jasenka [17]
3 years ago
6

Solve for y: 18x + 3y = 24​

Mathematics
1 answer:
Sidana [21]3 years ago
8 0

Answer: y=8-6x

Step-by-step explanation:

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Brian is 2 years older than Malachy. Caroline is 8 years younger than Malachy. If the total of their ages is 66, how old is the
SVETLANKA909090 [29]

Answer:

The eldest of them is Brian and he is 24 + 2 = 26 years old.

Step-by-step explanation:

Let

Malachy age = a

Brian age = a + 2

Caroline age = a - 8

Total of their age = a + (a + 2) + (a - 8)

66 = a + (a + 2) + (a - 8)

collect like terms

66 = a + a + 2 + a - 8

66 = a + a + a - 6

3a = 66 + 6

3a = 72

divide both sides by 3

a = 72/3

a = 24

Malachy age is 24 . Caroline is 24 - 8 = 16 years old.

The eldest of them is Brian and he is 24 + 2 = 26 years old.

7 0
3 years ago
Chris is riding her bike for 10 miles. She averages 12 mi/h. how many more minutes must she ride before she travels 60 miles?
madam [21]

Answer:

5 Minutes

take 10 and add 12 for each minute until you pass 60

3 0
3 years ago
All the items on the sale rack were 75 percent off their original price.
tresset_1 [31]

Answer:

112 $ is the original price

Step-by-step explanation:

x \times 0.75 = 84 \\ x = 84 \div 0.75 \\ x = 112

you have to think that the original price multiplied by 0.75 (also known as 75%) gave the result of what he saves i.e 84 $. So we put up an equation with the original price multiplied by 75% which equals the 84 $ he saved on buying that item on sale

4 0
3 years ago
55,37, 52,50, 53,46,53 whats the standard deviation of the data set?
Andreas93 [3]

Answer:

5.7285536159324

7 0
3 years ago
What is the volume of this prism?<br><br> 23.9<br> 47.7<br> 9.0<br> 4.5
anyanavicka [17]
Your answer would be 23.85 but I presume they rounded up so it would be 23.9
4 0
2 years ago
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