Answer:
Step-by-step explanation:
Exact form: 23/20
Decimal form: 1.15
A) .10 d + .25 q = 7.75
B) d + q = 40
Multiplying B) by -.10
B) -.10d -.10q = -4.0
Then adding this to A)
A) .10 d + .25 q = 7.75
.15q = 3.75
Quarters = 25
Therefore, dimes = 15
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Double-Check
A) .10 d + .25 q = 7.75
A) .10 * 15 d + .25 * 25 = 7.75
A) 1.50 + 6.25 = 7.75
Correct!!
Answer:
The total change is £21.02 from the original amount of £78.98. Therefore, the percentage change is directly related to the original amount.
Divide the total change by the original amount to determine the percentage change the new amount represents.
21.02÷78.98=0.15219 which rounds up to two decimal places as 15.22%.
Answer:
Step-by-step explanation:
This question is a bit more up to you. The paint has to be a green that is more yellow, so as long as you add more yellow than blue, your answer should be correct! For example 3 cups of yellow to 1 cup of Blue, or 3.3 yellow to 2 cups of blue
Answer: 1988 x 10^-3
Explanation:
(8 x 1011)/(4x1017)
= 8(1000+11)/4(1000 + 17)
= 2(1000+11)/1017
= 2022/1017 is approximately 1.988
Which in standard form 1988 x 10^-3
