Answer:
$300
Step-by-step explanation:
Let D = Dave's savings and S = Sam's savings.
(1) D/S = 5/4
(2) (D – 40)/(S-40) = 13/10 Multiply (1) by 4S
(3) 4D = 5S Multiply (2) by 10(S-40)
10(D - 40) = 13(S - 40) Remove parentheses
(4) 10D – 400 = 13S - 520 Solve (3) for S
S = (4/5)D Substitute into (4)
10D – 400 = 13(4/5)D - 520 Multiply each side by 5
50D – 2000 = 52D – 2600 Subtract 50D from each side
-2000 = 2D – 2600 Add 2600 to each side
600 = 2D Divide each side by 2
D = $300
Dave's savings at first were $300.
Answer:
x = 11
Step-by-step explanation:
6x + 7 = 73 {Alternate interior angles}
6x = 73 - 7
6x = 66
x = 66/6
x = 11
Answer:
(12,3) (-2,-5) (1,15)
Step-by-step explanation:
just did it in edgenuity.
Answer:
the second one
Step-by-step explanation:
if you were to divide the price by ounces the first one would be .1254444444444444 per ounce while the second one would be .1142708333333333 per ounce so the second one is better.
Answer:
Substitute the variables: