Answer:
41 and 77
Step-by-step explanation:
x: his age the first time he went to space
y: his age the second time he went to space
the second time he went to space he was 5 years younger than twice the age when he went his first time, then:
y = 2x - 5
the sum of both ages is 118, then:
x + y = 118
If you replace y = 2x - 5 in x + y =118:
x + 2x - 5 = 118
3x = 123
x = 41
replacing x:
41 + y = 118
y = 118 - 41
y = 77
so when he was 77, he was 5 years younger than twice 41 ( 41*2 = 82 => 82 - 5 =77)
Answer:
Step-by-step explanation:
Answer:0.38 inch
Step-by-step explanation: If it rains 0.72 inch on Monday and on Tuesday it rains 0.34 less inch then, you would have to subtract them to get 0.38 inch aka answer.
Answer:
(0, 1)
(4, 17)
Step-by-step explanation:
2x^2 - 4x + 1 = 4x + 1
2x^2 - 8x = 0
x(2x - 8) = 0
therefore either
x = 0
or
2x - 8 = 0
2x = 8
x = 4
(0, 1)
(4, 17)
Corinne's solution is not correct. In this case, she was supposed to divide each side by 5 in order to isolate x appropriately.
5x = 95
5x / 5 = 95 / 5
x = 19
