When we are partitioning in division, we are dividing the number into its place values, and then applying the divisor to each of the values.
For example in the first problem, we have 642, which is also 600 + 40 + 2.
That means we'll have three division problems.
600 ÷ 2 = 300
40 ÷ 2 = 20
2 ÷ 2 = 1
Which means that 642 ÷ 2 = 300 + 20 + 1, or 321.
You can apply this format to the other two problems to find their answers.
If you do, you should get that 969 ÷ 3 = 323, and 844 ÷ 4 = 211.
Hope this helps!
Answer:
Step-by-step explanation:
2a^-a-13=2
Subtract 2 from both sides :
2a^2-a-13=2=2-2
2a^2-a-15=0
Factor left side of the equation :
(2a+5) (a-3)=0
Set factors equal to 0 :
2a+5=0 or a-3=0
a=-5/2 or a=3
Answer:
she would save 1.1 extra gallons
Step-by-step explanation:
54 miles to work
30 miles a gallon so 1.8 gallons to get to work
27 miles a gallon so 2 gallons to get to work
30 miles car saves 5.4 miles more each day she drives to work
5.4 X 5 = 27 extra miles so 1.1 gallons she would be saving each work week
Answer: he must pay $650 interest
Step-by-step explanation:
2000 x 0.650 x 1/2 = 650
