Answer:
10
Step-by-step explanation:
x = Edith's age = 20 years
y = Ronald's age
x = 20 = y/4
y = 20×4 = 80 years
in z years we have
(x + z) = (y + z)/3
(20 + z) = (80 + z)/3
3(20 + z) = 80 + z
60 + 3z = 80 + z
60 + 2z = 80
2z = 20
z = 10
in 10 years Edith's age will be 1/3 of Ronald's age.
then Edith will be 30, and Ronald will be 90.
30 = 90/3
correct.
<span>The price usually goes up. If lots of people want something, you have to pay more to get it.</span>
Easy if you know the formula
all this means is that your x value is a, and when it is, will give you the value 26.
f(a) = 6a - 4 = 26
6a = 30
a = 5
Answer:
4j+24k
Step-by-step explanation:
Expand by distributing terms.
4j+4\times 6k
4j+4×6k
2 Simplify 4\times 6k4×6k to 24k24k.
4j+24k
4j+24k
