I think 7x-y=-2 is the answer
19.70-13=6.7
6.7/0.05=134
600+134=734
So in April she sent 734 text messages
N-8=21 should be the answer
3x+5y=10 and 5x-3y=-6 is perpendicular.
-90
Step-by-step explanation:
2/3x+4=3/5x-2
2/3x – 3/5x = -2 – 4
LCM for 5 & 3 is 15 so we can use it on the two fractions;
10/15x – 9/15x = 1/15 x
1/15x = -6
x = - 6 * 15
x = -90
Learn More:
For more on dealing with fractions check out;
brainly.com/question/1878884
brainly.com/question/10879215
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