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17.07.2019 •
Mathematics
Acook spent $12.30 to purchase the ingredients for a cake. one-third of the cost was for icing ingredients. how much did the icing ingredients cost? (can y'all me on number 4,5,6,7,8,9, and 10
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Ответ:
Find least common denominator
Add numerators
Simplify
1/4 + 1/2 + 2/3
12 is least common denominator
multiply numerator and denominator by same number
1/4 4×3=12 so multiply 1/4 × 3/3 = 3/12
1/2 2×6=12 so multiply 1/2 × 6/6 = 6/12
2/3 3×4=12 so multiply 2/3 × 4/4 = 8/12
ADD: 3/12 + 6/12 + 8/12 = 17/12
SIMPLIFY: 17/12 = 1 5/12 CUPS of sugar
5. Total cost:$12.30
..Icing Costs: 1/3 of Total
Equation (of means multiply):
1/3 × 12.30= N
12.30/3 = N
4.10= N
Icing Supplies Cost $4.10
6. Students: 25
1/5 of students
ate 1/8 of cake
How much cake is left?
In order to determine how much cake was eaten, you first need to know how many students ate it
1/5 × 25= 25/5 = 5
So 5 students ate 1/8 of cake each. So how much cake was eaten
5 × 1/8 = 5/8
cake had 8/8 pieces from which 5/8 was eaten. How much left?
8/8 - 5/8 = 3/8
so 3/8 of cake is left.
7. 3/4 × 3 = 9/4 = 2 1/4
8. Eggs 3/4 of dozen
Dropped 1/3 of 3/4 of dozen
3/4 × 12 = 36/4 = 9 eggs needed
1/3 × 9 = 9/3 = 3 eggs dropped
9-3=6 eggs left
9.
Ответ:
190,962
Step-by-step explanation: