<em>Answer:</em>
<em>20</em>
<em>Step-by-step explanation:</em>
<em>160% ............ 32</em>
<em>100% .................x</em>
<em>x = 100*32/160 = 3200/160 = 20</em>
<em>Good luck !</em>
Answer:
Step-by-step explanation:
To make this easier, to get ride of the fractions, we can multiply both sides by 4
now use the distributive property
now we want to isolate x to one side and isolate all the constants to the other
now simplify
to test, we can plug in back to the original
it works
This is the graph, I hope it helps
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)
