Answer:
Step-by-step explanation:
the first day he used 30 cups
the second day he used 15% of the remaining cups...a total of 90 cups were used on second day.
so 15%of the remaining cups = 90.....so if u let x be the total cups, then the remaining cups would be x - 30
15% of (x - 30) = 90.....turn ur percent to a decimal..." of " means multiply
0.15(x - 30) = 90
0.15x - 4.5 = 90
0.15x = 90 + 4.5
0.15x = 94.5
x = 94.5 / 0.15
x = 630 total cups <==
lets check..
start with 630 cups....used 30 the first day....leaving u with 600 cups....15% of the remaining cups = 90.....so 15% of 600 = 90....lets check it
15%of 600 = 0.15(600) = 90...yep, thats correct....there were 630 cups in the new un-opened box
C. An arithmetic sequence with common difference 6
Answer: t = -93
Step-by-step explanation:
64= -8(t+85)
64= -8t - 680
744= -8t
93= -t
93= t
Answer:
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Step-by-step explanation:
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As it is given that, the length of a rectangle is 5 in longer than its width and the perimeter of the rectangle is 58 in and we are to find the length and width of the rectangle. So,
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Let us assume the width of the rectangle as x inches and therefore, the length will be (x + 5) inches .
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Now, <u>According to the Question :</u>
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Therefore,
- The width of the rectangle is 12 inches .
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Now, We are to find the length of the rectangle:
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Therefore,
- The length of the rectangle is 17 inches .
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