D. 26,100 I believe is your answer
B. -20/9
C. -11/9
D. -2/9
E. 70/9
A. 25
B. 13
C. 216
D. 54
The total number of boxes that Marnie had to pack was 25.
A percentage is a number or ratio that can be expressed as a fraction of 100. If we have to calculate the percent of a number, divide the number by the whole and multiply by 100. Hence, the percentage means, a part per hundred. The word percent means per 100. It is represented by the symbol “%”
Given here: Marnie packed 18 boxes in 3 hours, which was 72% of the total number of boxes she had to pack.
Let the total number of boxes that she packed is x then we have
72/100 ×x=18
x=18×25/18
x=25
Hence, The total number of boxes that Marnie had to pack was 25.
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A a = b + 4 a = b – 1
B a = 4b a = b + 1
C b = a + 4 b = a – 1
D b = 4a b = a + 1
The three equivalent ratios are 27/6, 45/10, and 36/8.
Given,
The ratio of right-handed students to left-handed students is 18:4.
We need to find three equivalentratios of 18:4.
A ratio is denoted by A:B.
If the ratios are equal we called it proportion.
Example:
2/4 = 16/32 = 6/12
2/4 = 1/2
16/32 = 2/4 = 1/2
6/12 = 1/2
2/4, 16/32, and 6/12 are equivalent ratios and they are in proportion.
We have,
18:4
It can be written as:
= 18/4
Reducing it to the smallest term.
= 2 x 9 / 2 x 2
= 9 / 2
So,
We can have,
27/6, 45/10, and 36/8 as our equivalentratios.
27/6 = 3 x 9 / 3 x 2 = 9/2
45/10 = 5 x 9 / 5 x 2 = 9/2
36/8 = 4 x 9 / 4 x 2 = 9/2
Thus the three equivalent ratios are 27/6, 45/10, and 36/8.
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1/2
4
1/4