x+(x-2)=7 cab be used to determine the value of x.
Step-by-step explanation:
Given,
Heidi has x donations.
Grandpa Case has 2 fewer donations than Heidi.
Fewer means subtraction.
Grandpa has = x - 2
They have 7 donations in all.
Heidi's donations + Grandpa's donations = Total donations
x+(x-2)=7
x+(x-2)=7 cab be used to determine the value of x.
Keywords: equation, variable
Learn more about variables at:
#LearnwithBrainly
9514 1404 393
Answer:
(x, y) ⇒ (x -5, y +3)
Step-by-step explanation:
Pick a point on the original polygon. The extreme left point (at (1, 0)) will do.
Locate the corresponding image point on ABCDE. (It is point B(-4, 3).) Using coordinates, or counting grid squares, determine what must be added to the original point to get the image point.
Here, that addition is 5 squares left and 3 squares up:
image - original = (-4, 3) -(1, 0) = (-5, 0)
So, the transformation rule adds -5 to each x-coordinate and 3 to each y-coordinate:
(x, y) ⇒ (x -5, y +3)
Answer:
Step-by-step explanation:
The monthly rents paid by the 10 people are
845, 875, 890,900,960, 965, 990, 1015, 1045, 1065.
The mean rent is determined by
Sum of rent paid/ total number of people that paid rent.
Mean = (845+875+890+900+960+965+990+1015+1045+1065) /10 = 9550/10 = 955
Median = (960+965)/2 =1925/2 = 962.5
Suppose that one of the people moves, her rent changes from 1065 to 915, the mean becomes
(845+875+890+900+ 915 + 960+965+990+1015+1045)/10 =9400/10 = 940
The median is (915 +960)/2 =1875/2 = 937.5
Therefore,
a) the mean decreases by
955 - 940 = 15
b) the median decreases by
962.5 - 937.5= 25
Answer:
The correct answer here is A. x = 17.
How I found this out:
3x + 3 and 5x - 7 are going to be different solutions in the end.
I did the process of elimination.
First, I subsituted, 17 for x. 3 X 17 + 3 = 54. 5 X 17 - 7 = 78.
I then took 180 - 54 - 48 = 78 and 180 - 78 - 48 = 54, just to make sure they are positive numbers and not negative.
Since they work out, I chose this as my correct answer to your question.
Step-by-step explanation:
Hope this helps! :)
I tried my best so I'm it's wrong.
Answer:
30 mph
Step-by-step explanation:
150/5=30
