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Answer:
1 5/24 + 7 22/24 = 8 27/24
Step-by-step explanation:
No change is required to the fraction on the first line:
1 5/24 = 1 5/24
The fraction on the second line can be multiplied by 2/2 to make its denominator 24.
7 11/12 = 7 22/24
The fraction on the third line is the sum of the fractions on the other two lines. It is an improper fraction. We know this because the integer portion of the sum is shown as 8, not 9, as it would be if the fraction were reduced.
5/24 +22/24 = 27/24
Then the sum is ...
1 5/24 +7 22/24 = 8 27/24
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If the fraction on the final line were reduced, the sum would be 9 3/24 = 9 1/8.
Answer: James will save $3 for 18 weeks before he can buy the telescope
Step-by-step explanation:
It is a Simple interest problem .
principle = $16
rate = 5%
time = 1 year
simple interest = PRT/100
= (16 x 5 x 1)/100
= 4/5
= $0.80
amount after 1 year = 16 + 0.80 = $16.80
A) x + 4y = -15
B) -2x -8y = 30
Multiplying A) by 2
A) 2x + 8y = -30
This has NO solution because A) and B) are actually the same equation.
Equation B = Equation A times minus 2.
