Answer:
x = 1
Step-by-step explanation:
This is a proportion, meaning you can cross-multiply to solve it.
1.5 * 4 = 6x
6 = 6x
1 = x
<span>From the problem, you can get this equation:
Jane is 2 years older than Sally
J=z+2
David is 4 times older than Jane.
D=4J
</span>Write two equivalent expressions that represent David’s age in terms of Sally’s age, z, and explain how the two expressions relate to one another.<span>Sally is z years old.
From the 2 equation above, you can get:
</span>D=4J
D=4(z+2)
D=4z+8
D-8=4z
(D-8)/4=z
The two equivalent expression would be D=4z+8 and (D-8)/4=z
The expression that more usefull would be D=4z+8 if you want to determine David age.
16 * 3 = 48
and
16 + 3 = 19
Y is 65. Y is equal to 50(1) + 15, which is 65, so y must be 65.
0.034 would be the correct answer.