Which strategy would not correctly solve this story problem? plz who ever answers this first is marked brainliest plzz
colin invited 31 people to the picnic. he can fit 10 people at his picnic table and the rest will sit on blankets. each blanket can hold 3 people.
how many blankets does colin need so that everyone has somewhere to sit?
a.
draw a diagram. 10 people at one table, 3 people on a blanket, 3 people on a blanket, 3 people on a blanket, 3 people on a blanket, 3 people on a blanket, 3 people on a blanket, 3 people on a blanket. count the number of blankets needed.
b.
work backward. start with 31 people. subtract 10. then subtract 3 to figure out how many blankets will be needed.
c.
translate into an equation.
(31 – 10) ÷ 3 = b
d.
use logical reasoning. start with 31 people, subtract 10 people who will sit at the picnic table, that leaves 21 people. keep subtracting 3 people until you get to 0. count how many times you subtracted 3 people.

step-by-step explanation:

20% of 120 is 24. if you subtract 24 from 120 you get 96

let's cover over the formula of the vertex:

y = a(x – h)^2 + k

in this formula, (h,k) are the vertex, always remember that the positive or negative value of the vertex is based on the sign it has.

for example, if the vertex is -3,-6 then both the x and y value would have the positive sign attached to it and if it were a positive x and y value, then a negative sign would be attached to it.

with that being said, for our problem the x value is a positive one so we are looking for a number with a negative sign next to it, in this case the first and second choice.

however, for the first answer choice it isn't quite part of the formula so we know that the answer choice correctly displays the x value.

to confirm, we can see if the -1 fits correctly with the second answer choice, and as mentioned above a negative number will have a positive sign attached to it. so, for our problem we can see that -1 has been changed to +1, so we can confirm that the second answer choice is correct.

hence, our final answer is y=(x - 1)^2 + 1