Ask a New Question

Question

7 apples and 5 bananas cost $6.30. 11 apples and 7 bananas cost $9.60. Based on this information, how much will 15apples and 13 bananas cost?
3 years ago

Answers

mathhelper
7a + 5b = 630 --- times 7 ---> 49a + 35b = 4410
11a + 7b = 960 -- times 5 ---> 55a + 35b = 4800
subtract them
6a = 390
a = 65
sub into 7a + 5b = 630
455 + 5b = 630
b = 35

now you know the value of a and be, so find 15a + 13b
3 years ago

Related Questions

you buy only apples and bananas. Your budget is such that you can purchase 3 apples and 4 bananas or... You buy only apples and bananas. Your budget is such that you can purchase 3 apples and 4 bananas o... three apples and four bananas cost $4.85,three apples and ten bananas cost $8.75, find the cost of a... Ken uses 6 apples and 2 bananas to make a fruit salad. He puts twice as many oranges as bananas in t... Mom has 2 apples and 3 bananas. Every morning for 5 days she is going to give her son an apple or a... The cost of 3 bananas 4 apples and 6 mangoes is rs.29 and the cost of 2 bananas 6 apples and 3 mango... Three apples and four bananas cost $4.85. One apple and ten bananas cost $7.25. Jenny has 3 apples 2 bananas 5 oranges and 2 pears what fraction of the fruit are oranges? Ian buys 4 bananas and 2 apples. Each banana has a mass of 120 grams. Each apple has a mass of 180 g... Three apples and four bananas cost $4.85. Three apples and ten bananas cost $8.75. Find the cost o...
Ask a New Question
Archives Contact Us Privacy Policy Terms of Use