Step-by-step explanation:
x+y=84
x²=y+6
y+6+y=84
2y+6=84
2y=84-6
2y=78
y=39
x=84-39=45
Answer:
-79677.76
Step-by-step explanation:
Subtract the 79764 by using a calculator from the 86.24 and you should get a negative.
Answer:
7.4 x 10^7
Step-by-step explanation:
3.98 x 10^8 - 3.24 x 10^8 = 0.74 x 10^8 (not scientific notation, because it isn't full number)
0.74 x 10^8 ---> 7.4 x 10^7
- got seven by counting the spaces it moved over (right decrease, while left increases)
Answer:
Is there more information?
Step-by-step explanation:
Answer:
71
Step-by-step explanation:
The question says we have 140 bags and we have 4 models
bags have buttons but no zips.
bags have zips but no buttons.
bags have neither zips nor buttons
bags have both zips and buttons
We don't know how many bags have zips and buttons but we know how many bags are produced. And other 3 types of bags number. So we can calculate
140-47-48-22=23
That means we have 23 bags that have zips and buttons
and
48 of the bags have zips too. that means we have 48+23=71 bags that have zips on them.
