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rusak2 [61]
2 years ago
6

Show work pls i need help

Mathematics
1 answer:
Anestetic [448]2 years ago
6 0
This is the answers:
20: 6.9/7
21: 6.36/6
22: 6.24/6
23: 9.1/9
24: 4.6/5
25: 5.8/6
26: 9.3/9
27: 4.12/5
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Kalon and his friend Marna own a chimney sweep service company. Working together, they can clean a chimney in 1 5/7 hours. If it
aleksley [76]
So to set up the equation we have: <span><span><span>4M</span><span>4+M</span></span>=<span>127</span></span>
<span>28M=12(4+M)</span>
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2 years ago
What is the y-intercept of the line 3x+5y=20?
Tom [10]
0, the slope and y-intercept is 0
7 0
2 years ago
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I did the first one but can you help me with the second one plz??
yanalaym [24]

the only like-terms are on the right-hand-side, since the left-hand-side has only 1 term anyway.

\bf \cfrac{5}{2}s=\cfrac{3}{2}s+s\implies \cfrac{5}{2}s=\cfrac{3}{2}s+\cfrac{s}{1}\implies \cfrac{5}{2}s=\stackrel{\textit{using the LCD of 2}}{\cfrac{(1)3s+(2)s}{2}} \\\\\\ \cfrac{5}{2}s=\cfrac{3s+2s}{2}\implies \cfrac{5}{2}s = \cfrac{5}{2}s

5 0
2 years ago
3r − 9 = –6r<br> solve for r
vladimir2022 [97]

Answer:

3r − 9 = –6r

-9 = -6r-3r         (you change the signs when bringing +3r to the other side)

-9 = -9r

r = -9/-9

r = 1

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2 years ago
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