Ji Sunn spent $24 at the local farmer’s market. She bought apples that cost $4 per pound and raspberries that cost $6 per pound. Which equation can be used to represent the amount of raspberries, r, in terms of apples, a? r = 4 minus two-thirds a r = 4 + two-thirds a r = 6 minus three-halves a r = 6 + three-halves a
2 answers:
Answer:
r = 4 -2/3 a
Step-by-step explanation:
She spent in total 24 dollars. So, you can set the equation equal to 24.
? = 24
It costs $4 per pound for apples and $6 per pound for raspberries. You could represent apples as 4a and raspberries as 6r. Put this into the equation.
4a + 6r = 24
Now set the equation equal to r. You have to get r alone on one side.
4a + 6r = 24
(4a + 6r) - 4a = (24) - 4a
6r = 24 - 4a
6r = (24 - 4a)/6
r = 4 - 4/6 a
r = 4 - 2/3 a
Answer:
r = 4- 2a/3
In the words of the problem, its r = 4 minus two-thirds a
Step-by-step explanation:
You can set up a general equation for this problem, and then solve for r to get your answer. In this case its:
4a + 6r = 24
Now move 4a to the other side by subtracting 4a from both sides:
6r = 24-4a
Finally, divide both sides by 6 to get:
r = 4- 2a/3
In the words of the problem, its r = 4 minus two-thirds a
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