That's an isosceles triangle lying on its side. The base angles (on the left) are marked equal, so we know the sides opposite them are equal.
That means that . . . x+4 = 3x-8
Subtract 'x' from each side . . . 4 = 2x-8
Add 8 to each side . . . 12 = 2x
Divide each side by 2 . . . <em>6 = x</em>
She got 87.5 percent. you find the answer by setting up a proportion
Answer:
Apple = $0.6
Banana = $0.75
Step-by-step explanation:
Let us represent Apple by A and Banana by B
For Joe,
5A + 4B = 6 (1)
For Dawn
3A + 6B = 6.3 (2)
To eliminate A, Multiply equation (1) by 3 and equation (2) by 5
15A + 12B = 18 (3)
15A + 30B = 31.5 (4)
subtracting equation (4) from (3)
15A - 15A +12B - 30B = 18 - 31.5
-18B = -13.5
divide through by -18
-18B/-18 = -13.5/-18
B = 0.75
substitute 0.75 in equation (1)
5A + 4B = 6
5A + 4(0.75) = 6
5A + 3 = 6
subtract 3 from both sides
5A + 3 - 3 = 6 - 3
5A = 3
divide through by 5
5A/5 = 3/5
A = 0.6
37.5 km is equal to 15 cm
It becomes a liquid
hope this helped