Answer:
1) 10
2) 9
Step-by-step explanation:
50+35=5(10+7) because 5*10=50 and 5*7= 35
9+39=3(3+13) because 3*3=9 and 3*13=39
There r 2 ways to do this type of problem....
(1) 30% of 70...turn percent to decimal...." of " means multiply
0.30(70) = 21.....so 30% of 70 is 21
or
(2) use the percent formula.....is/of = %/100
30% of 70 is what ...
is = x
of = 70
% = 30
is/of = %/100
sub
x / 70 = 30 / 100
cross multiply because this is a proportion
(100)(x) = (30)(70)
100x = 2100
x= 2100 / 100
x = 21
** by the way, this percent formula works on many percent problems...u just have to make sure u sub the right numbers in the right places.
either way u choose to do it, u should arrive at the same answer
Answer:
where is the question. see the question never mind
Step-by-step explanation: irrational because it has a long decimal that doesn't repeat or terminate.
answer:
2. 3/2
1. y=-7
Step-by-step explanation:
