Answer:
D: 20h + 45 = 165
Step-by-step explanation:
20 for EACH hour means that there's a variable (h) attached to 20 so it has to be 20h
Because of that, we can eliminate choices A and B.
Charges mean that it's ADDED to the price so it has to be 45 PLUS 20h
20h + 45 = 165
Answer:
-7 × 10
Step-by-step explanation:
Explanation:
6.3
×
10
5
is the same value as
63
×
10
4
So we have:
63
×
10
4
9
×
10
3
ddd
→
ddd
63
9
×
10
4
10
3
ddddddddd.d
→
ddd
63
9
×
10
If the sum of the digits is exactly divisible by 3 then the actual number is also exactly divisible by 3
→
6
+
3
=
9
so we will divide both top and bottom by 3 to simplify the fraction.
ddddddddd.d
→
ddd
63
÷
3
9
÷
3
×
10
Note that:
63
÷
3
9
÷
3
=
21
÷
3
3
÷
3
=
7
1
=
7
so we have:
(
6.3
×
10
5
)
÷
(
9
×
10
3
)
=
7.0
×
10
Negative version works the same exact way but with a negative sign
Answer: C. 7.5%
Solve as decimal
0.5*0.15=0.075
Move two decimal points over
0.075 -> 7.5
Change back to percent
7.5%
99.03-48.8=50.23. 50.23 times 9.6 =482.208. 482.208 + 42.7=524.908. Final answer: 524.908
Answer:
This is a picture of You
Step-by-step explanation:
