The first number on the left is always one so 0 is ten because you say 5 is in the ones place and then 0 is in the tenths because you count up by five
Answer:
(2.9x10^8) divided by (9.2x10^6) will be equal to 31.52
Step-by-step explanation:
Given that:
(2.9x10^8) divided by (9.2x10^6)
we can write it as:
=2.9/9.2 * (10^8-6) (subtracting exponents of same bases in division)
=0.3152 * 10^2 (As 10^2 equals 100)
=31.52 (Answer)
I hope it will help you!
X = # dimes
y = # quarters
x+y = 20 so x = 20 - y
0.1x + 0.25y = 4.1
substitute x = 20 - y into 0.1x + 0.25y = 4.1
0.1x + 0.25y = 4.1
0.1(20 - y) + 0.25y = 4.1
2 - 0.1y + 0.25y = 4.1
0.15y = 2.1
y = 2.1 / 0.15
y = 14
x = 20 - 14 = 6
answer
Dimes: 6 coins
Quarters: 14 coins
Double check
6 + 14 = 20 coins total
6(0.1) + 14(0.25) = 0.6 + 3.5 = $4.10
