419979/3153=133.19981 that rounded is 133.2
419979/133.2=3152.9955 that rounded is 3153
Answer:
$10.71
Step-by-step explanation:
divide 7.14 by 42 to get the price per pound, then multiply that by 63.
Answer:
f(x) = .8 (215 - .45 x)
f(x) = .8 (215 - .45 * 75) = .8 ( 215 - 34) = .8 (181) = 145
He bought 4 books
Steps:
3.95(3) + 8.95b = 47.65
<span>11.85 + 8.95b = 47.65
</span>
Now just subtract 11.85 from both sides and now the equaton shoud look like this
8.95b = 35.8
Now divide 8.95 from both sides and you get...
b=4
Hope this helps!
Answer:
missing side length is 12
Step-by-step explanation:
similar means that all correlating pairs of sides have the same ratio (old side length) / (new side length).
so, when we know the ratio of one pair, we can apply it to any other side to calculate the correlating side.
we see, when we go from small to large, that we have the ratio 32/40 = 4/5.
so, multiplying the larger side by this, we get the shorter side.
15 × 4/5 = 3 × 4 = 12
the proportion part in your picture is a bit confusing :
yes,
x/15 = 32/40 = 32/40
I don't know, why this last expression was repeated.
x/15 = 32/40
x = 15×32/40 = 15×4/5 = 3×4 = 12
as you see we get of course the same result doing it that way.
