So first we remove 7.00$ from 19.00$
Now we have 12.00$
Then it said 1.50$ per hour
So we do 12 divide 1.50. 12:1.50= 8
He can skate for 8 hours
Answer:
see below PLEASE GIVE BRAINLIEST
Step-by-step explanation:
The rate of trf is 4.4 megabytes per second and he trf files for 32 seconds.
32 x 4.4 = 140.8mb trf
384 - 140.8 = 243.2 mb was already on the flashdrive
Answer:
(0,-1)
Step-by-step explanation:
Answer:
25,328.941 ÷ 104= 7.90415302
Step-by-step explanation:
When ever you have percentages, it should be helpful to bear in mind you can express them as multipliers. In this case, it will be helpful.
So, if we let:
a = test score
b = target score
then, using the information given:
a = 1.1b + 1
a = 1.15b - 3
and we get simultaneous equations.
'1.1' and '1.15' are the multipliers that I got using the percentages. Multiplying a value by 1.1 is the equivalent of increasing the value by 10%. If you multiplied it by 0.1 (which is the same as dividing by 10), you would get just 10% of the value.
Back to the simultaneous equations, we can just solve them now:
There are a number of ways to do this but I will use my preferred method:
Rearrange to express in terms of b:
a = 1.1b + 1
then b = (a - 1)/1.1
a = 1.15b - 3
then b = (a + 3)/1.15
Since they are both equal to b, they are of the same value so we can set them equal to each other and solve for a:
(a - 1)/1.1 = (a + 3)/1.15
1.15 * (a - 1) = 1.1 * (a + 3)
1.15a - 1.15 = 1.1a + 3.3
0.05a = 4.45
a = 89
