Answer:
My Answer: <u>33.95</u>
Step-by-step explanation:
x - 13.75 = 20.2
so because it is subtracting we have to add.
x - 13.75 + 13.75 = 20.2 + 13.75
when added, x will cancel out, and we will be left with the answer.
x = 33.95
GL!
-Oceaniii
Answer:
Step-by-step explanation:
Let x represent the number of lawns Jacob mowed and y represent the number of dogs Sarah walked.
Jacob charges $20 each time he mows a lawn, then he earns $20x for x lawns mowed.
Sarah charges $10 each time she walks a dog, then she earns $10y for y dogs walked.
In total, they will earn $(20x + 10y). They need at least $2000 in order to go on a trip, then
Note that 
You don't even have to look up the definition of 'standard deviation'. You only
have to remember that 'smaller standard deviation' means 'less spread-out'.
First, let's find the mean (average). It's not supposed to change:
1/7th of (65 + 71 + 77 + 80 + 82 + 90 + 96) = 561/7 = <u>80 and 1/7</u> .
Now, just pick 7 scores that total 561 and are all bunched up.
The easiest way would be 80, 80, 80, 80, 80, 80, 81 .
But that's so easy that it feels like cheating.
Let's say <u>77, 78, 79, 80, 81, 82, and 84</u> .
45/5 = 9 jams a day
x/7 = 9
x= 63 jams a day
Hope this helps!
1
The variable in this case is v, and no coefficient is given, so it can be assumed to be 1.
