<h3>The solution is (x, y) = (3, -24)</h3>
<em><u>Solution:</u></em>
<em><u>Given system of equations are:</u></em>
-3x - y = 15 -------- eqn 1
y = -8x ------ eqn 2
We have to find solution of (x, y)
We can solve by substitution method
<em><u>Substitute eqn 2 in eqn 1</u></em>
-3x - (-8x) = 15
-3x + 8x = 15
5x = 15
Divide both sides by 5
<h3>x = 3</h3>
Substitute x = 3 in eqn 2
y = -8(3)
<h3>y = -24</h3>
Thus solution is (x, y) = (3, -24)
dropped $3 means "-3", increased $6 means "+6"
the price dropped twice so 2(-3) and increased once by 6
so, 2(-3) + 6 = 0
the change in price is $0
there are 4 quarters to a pound
so 3/16 x 4 = 12/16 = 3/4 cups of water
Sally would have to drive 180 mi in a work week. You multiply the amount of miles it takes her to get to her job by how many times she drives to and from work a day. (She drives 18 mi to work and and 18 to get home) (18•2=36) So she drives 36 mi in one day. Then you multiply the amount of miles she drives per day (36) by how many days she works a week (5) and you get 180 mi in a work week.
