Question

Points: 3Question 1
Maggie and Tanya went to a fruit store. Maggie bought 10 oranges and 5 apples for $4. Tanya bought 9 oranges and 3 apples for $3. What is the cost of an orange and an apple?
Cost of an orange = $0.10, cost of an apple = $0.40.
Cost of an orange = $0.20, cost of an apple = $0.40.
Cost of an orange = $0.24, cost of an apple = $0.50.
Cost of an orange = $0.10, cost of an apple = $0.50.

Answer 1

Try this.
10x + 5y = 4
9x + 3y = 3

Solve for x and y.

Answer 2

hm i did

Answer 3

i did all the steps but when i tried to get the second variable it didnt add up

Answer 4

i got y= 0.4 where y is apples

Answer 5

then i put in y and got x = 5

Answer 6

but the answers arent on the page so its wrong

Answer 7

cant tell what i got wrong

Answer 8

Let's try substitution.
\[3y = 3-9x \]
\[y = 1-3x\]
\[10x + 5(1-3x) = 4\]
\[10x + 5 -15x = 4\]
\[-5x = -1\]
\[x = 1/5, x= .20\]

Answer 9

its not up there

Answer 10

\[10(1/5) + 5y = 4, 2 + 5y = 4, 5y = 2, y = 2/5, y = .4 \]

Answer 11

B

Answer 12

oh

Answer 13

u thought u meant x=1/5,x=.20 was the answer i see

Answer 14

i thought

Answer 15

Yeah, sorry. I'm not sure how to make new lines using the equation editor.

Answer 16

Ah! It's two of these \\