Answer:
I only know how to solve it, it is -3
Step-by-step explanation:
-8x+3> or = 18-3x
3>or= 5x+18
-15> or = 5x
x>or=-3
Answer/Step-by-step explanation:
What we already know:
Pizza slices $2.75 - Ice cream cones $2.25 - Tacos $1.75
Total Items sold - 121 / Total amount of money - $260.75/ <u>$87.50 made from selling Tacos</u>
<u>____________________________________</u>
Tacos - 87.5 ÷ 1.75 = 50 Tacos sold -- 121 - 50 = 71 items
& 260.75 - 87.5 = 173.25 left
____________________________________
You can't sell half an Ice-Cream
Ice Cream - 71 - 1 = 70 -- 70 ÷ 2 = 35 -- 35 × 2.25 =
<h3>
$78.75 made from Ice-cream cones</h3><h3>
35 Ice- cream cones sold</h3><h3>
**************************************************</h3>
Pizza slices - 71 - 70 = 1 -- 1 + 35 =
<u>36 Pizza slices sold</u>
36 × 2.75 =
<u>99 dollars made off of Pizza slices</u>
____________________________________
**I dont know if this is correct**
Answer:
12 bolt 18 nuts
Step-by-step explanation: (Elimination method)
N=nuts
B=bolts
B + N = 30
0.20B + 0.10N = 4.20
20B+10N=420 (I multiplied by 10 to eliminate decimals
-------------------------------------------------------
I will multiply the first by (-10)
-10B -10N =-300
20N +10N=420
10B+0 = 120
B=12 (12 BOLT)
30-12 =18 (8 NUTS)
12*0.20=2.40
18*0.10=1.80
2.40+ 1.80 = 4.20
