Answer:
125 R10
Step-by-step explanation:
You have to do (1760-10)/14=125
Answer: the cost of each pencil is $0.5
the cost of each eraser is $0.15
Step-by-step explanation:
Let x represent the cost of one pencil.
Let y represent the cost of one eraser.
Becky spent $1.45 for 2 pencils and 3 erasers. This means that
2x + 3y = 1.45- - - - - - - - - -1
Luke spent $2.65 for 5 pencils and 1 eraser. This means that
5x + y = 2.65- - - - - - - - - -2
Multiplying equation 1 by 1 and equation 2 by 3, it becomes
2x + 3y = 1.45
15x + 3y = 7.95
Subtracting, it becomes
- 13x = - 6.5
x = - 6.5/- 13
x = 0.5
Substituting x = 0.5 into equation 2, it becomes
5 × 0.5 + y = 2.65
2.5 + y = 2.65
y = 2.65 - 2.5
y = 0.15
Hello! So, 11/2 cups is simplified as 5 1/2 cups. In order to find out how many 1/8 cups Jenn will need to scoop, all you have to do is divide each number by 1/8. When you divide fractions, you keep the first fraction the same, change division into multiplication, and flip the second fraction over into it's reciprocal. So 2 / 1/8 becomes 2/1 * 8/1. With that being said, if you solve each of them correctly, here are your answers for the number of 1/8 cups needed.
Water: 16
Brown Rice: 44
Jenn willl have to use the 1/8 scoop to get water 16 times and the 1/8 scoop to get brown rice 44 times.