Question

you substituted different combinations of pounds of grapes and strawberries in the equation and found their total values. which combinations equal exactly 20 dollars? which combinations do not equal exactly 20 dollars?
$2g + 3s = 20$
equal exactly 20 dollars
do not equal exactly 20 dollars
$2(4) + 3(4) \stackrel{?}{=} 20$
$20 \stackrel{?}{=} 20$
$2(4) + 3(3) \stackrel{?}{=} 20$
$17 \stackrel{?}{=} 20$
$2(1) + 3(6) \stackrel{?}{=} 20$
$20 \stackrel{?}{=} 20$
$2(4) + 3(6) \stackrel{?}{=} 20$
$26 \stackrel{?}{=} 20$

Explanation:

Step1: Evaluate first combination

$2(4) + 3(4) = 8 + 12 = 20$, so $20=20$ is true.

Step2: Evaluate second combination

$2(4) + 3(3) = 8 + 9 = 17$, so $17=20$ is false.

Step3: Evaluate third combination

$2(1) + 3(6) = 2 + 18 = 20$, so $20=20$ is true.

Step4: Evaluate fourth combination

$2(4) + 3(6) = 8 + 18 = 26$, so $26=20$ is false.

Answer:

Equal exactly 20 dollars	Do not equal exactly 20 dollars
$2(1) + 3(6) \stackrel{?}{=} 20$ <br> $20 \stackrel{?}{=} 20$	$2(4) + 3(6) \stackrel{?}{=} 20$ <br> $26 \stackrel{?}{=} 20$