7 = -x + 3
7- 3 = -x
4 = -x
x = -4 <===== 10 is not a solution
Answer:
Nope. It would take 32 and 4/13 minutes, which is longer than 30 min.
Step-by-step explanation:
The distance is 35 miles and the speed 65 miles/hour
Dividie the distance by the speed to obtian the time required,
(35 miles)/(65 miles/hour) = 0.538 hours
No, 35 miles at the speed limit of 65 mph would require 0.538 hours, 0.038 hours more than 1/2 hour. 2 and 4/13 minutes more than 30 minutes.
Answer:
- 100
- 489.190
- 10,000
- 48,919,000
Step-by-step explanation:
Each factor of 10 in the divisor causes the decimal point to move 1 place to the left.
a) The decimal point has moved 2 places to the left. The divisor is 10^2 = 100.
b) The divisor is 10^3, so the decimal point will move 3 places to the left.
489.190
c) The decimal point has moved 4 places to the left, so the divisor is 10^4 = 10,000.
d) The divisor is 10^5, so the decimal point in the quotient if 5 places to the left of where it is in the dividend. Moving the quotient's decimal point 5 places to the right gives ...
48,919,000
_____
<em>Additional comment</em>
An exponent signifies repeated multiplication. Here, we're concerned with repeatedly multiplying (or dividing) by factors of 10. The exponent indicates the number of factors: 10·10 = 10^2 = 100. It also matches the number of zeros following the 1 in the product. 1000 = 10^3 has 3 zeros after the 1, for example.
C. It is the mean. Add all of the ages up and divide by how many there are.
You express the values in which the teacher or tutor or whatever assigned you.
