Answer:
<u>The amount of money Lily had when she left the store, in terms of m, is 86 - 6m</u>
Step-by-step explanation:
1. Let's review the information given to us to answer the question correctly:
m = Milk Lily purchased
2m = Fruit Lily purchased (twice that amount on fruit)
3m - 6 = Bread Lily purchased (6 dollars less than 3 times the amount spent on milk for bread)
Amount of money Lily entered = $ 80
2. How much money did Lily have when she left? Write your answer in terms of m.
Let's write the equation to find out the money left in terms of m, this way:
Money left = 80 - m - 2m - (3m - 6)
Money left = 80 - m - 2m - 3m + 6
Money left = 86 - 6m
<u>The amount of money Lily had when she left the store, in terms of m, is 86 - 6m</u>
When solving equations that have only one type of variable, you just get the variable on one side and the numbers on the opposite side.
6x + 7 = 8x - 13
Let us get the x on the left side.
Subtract each side of the equation by 8x.
6x + 7 = 8x - 13
-2x + 7 = -13
Subtract 7 from each side of the equation.
-2x = -20
Divide both sides by the coefficient of x. Which is -2.
x = 10
So, x is equal to 10 for this equation.
Answer:
( -7x + 10 ) ( x + 2)
Step-by-step explanation:
-7x² - 4x + 20
( -7x² - 14x ) + ( 10x + 20 )
-7x ( x + 2 ) + 10 ( x + 2 )
( -7x + 10 ) ( x + 2)
Answer:
C
Step-by-step explanation:
Okay so what we are going to do here is look at our terms first and see what gets us there.
So lets consider the first term or the first sum, when k=1.
So if k=1 then the expression should give us a positive 5. So lets check each one for a +5.
So lets start with (5k-5) if we let k equal one this first term would be 0. So this doesnt work already.
The rest however do work so we need to keep checking.
Lets let k=2
We know that when k=2 we need the value of the term to equal -5.
So lets look at (-5k+10) if we let k be -5 then this second term would be 0 and 0 is not equal to -5 so this is now out.
Now lets look at (15k-10) if we let k=2 then this is (30-10) = 20 and 20 doesnt equal 5 so that not gonna work.
So our answer here must be (-10k+15). If we let k=2 then thats (-20+15) = -5
Now just to be 100% sure lets check some other terms. Lets check the last term which would be -755. This term would be the the 77th term so lets let k=77.
(-10(77) + 15) = -770 + 15 = -755. So that also works.
Hence our answer is the series/answer choice c.
Answer:
-7x-13
<em>Have a beautiful day!</em>