No solution
cz
12x-21y=-42 -----> /3 (divided by 3 )
4x-7y=14 ------ (2)
4x-7y=-2 ------- (1)
how 4x-7y =14 an = -2
and if we
(2)-(1)
0=12
#
Red ribbon
=Blue ribbon ×5
=11 m
<em>So</em><em>,</em><em> </em><em>changes</em><em> </em><em>the</em><em> </em><em><u>times</u></em><em><u> </u></em><em><u>symbol</u></em><em> </em><em>into</em><em> </em><em><u>divide</u></em>
11m ÷ 5
=2.2m
Check!
Red ribbon=Blue ribbon × 5
11m=Blue ribbon × 5
11m÷5=Blue ribbon
2.2m=Blue ribbon
Blue ribbon=2.2m
Answers
2.2m
Answer:
She will need to practice 6.5 hours during Tuesday, Wednesday, and Thursday or 2.2 hours on each of the days she will practice.
Step-by-step explanation:
The answer is 65. Because if you use the discriminant formula which is b^2 - 4(a)(c)
