Answer:
2.8 · 10^(-9)
Step-by-step explanation:
I'd suggest you do this problem through two separate multiplications:
First, 0.4·0.7 = 0.28, or 2.8 · 10^(-1)
Second, 10^(-6) · 10^(-2) = 10^(-8), and so the final result is
2.8 · 10^(-1) · 10(-8) = 2.8 · 10^(-9)
Please note: negative exponents (such as -9, above) should be enclosed in parentheses for added clarity.
Answer:
5 : 2 : 3
Step-by-step explanation:
Total sweets = 50
Sweet types:
Jellies = 25
Fizzy cola = 10
Number of boiled sweets = 50 - (25 + 10) = 15
Ratio of :
Jellies : Fizzy cola : boiled sweets
25 : 10 : 15
Divide through by 5
Jellies : Fizzy cola : boiled sweets
5 : 2 : 3
Answer:B
Step-by-step explanation:100% correct
Answer:
8%
Step-by-step explanation:
560 interest/7 years=80 interest per year
1000xinterest rate=80
interest rate = 80/1000
Interest rate is 8%
Hey there! I'm happy to help!
If something is 11 less, we are subtracting 11.
-11
We have 11 less than seven times a number x.
7x-11
The word is means equals.
7x-11=-4
Now we need to isolate the x. We add 11 to both sides.
7x=7
We divide both sides by 7.
x=1.
Have a wonderful day! :D
