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3 years ago

(25 1/8- 20.5) solve it

Mathematics

1 answer:

Sergeeva-Olga [200]3 years ago

5 0

Answer:

the answer is 4.625 or 4 6/10

Step-by-step explanation:

I just used a calculator. hope this helps <3

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6(m-1) = 3(3m + 2) Show all work

nordsb [41]

Answer:

$\boxed{\sf m = -4}$

Step-by-step explanation:

$\sf Solve \: for \: m: \\ \sf \implies 6 (m - 1) = 3 (3 m + 2) \\ \\ \sf Expand \: out \: terms \: of \: the \: left \: hand \: side: \\ \sf \implies 6 m - 6 = 3 (3 m + 2) \\ \\ \sf Expand \: out \: terms \: of \: the \: right \: hand \: side: \\ \sf \implies 6 m - 6 = 9 m + 6 \\ \\ \sf Subtract \: 9 m \: from \: both \: sides: \\ \sf \implies (6 m - 9 m) - 6 = (9 m - 9 m) + 6 \\ \\ \sf 6 m - 9 m = -3 m: \\ \sf \implies -3 m - 6 = (9 m - 9 m) + 6 \\ \\ \sf 9 m - 9 m = 0: \\ \sf \implies -3 m - 6 = 6 \\ \\ \sf Add \: 6 \: to \: both \: sides: \\ \sf \implies (6 - 6) - 3 m = 6 + 6 \\ \\ \sf 6 - 6 = 0: \\ \sf \implies -3 m = 6 + 6 \\ \\ \sf 6 + 6 = 12: \\ \sf \implies -3 m = 12 \\ \\ \sf Divide \: both \: sides \: of \: -3 m = 12 \: by \: -3: \\ \sf \implies \frac{ - 3m}{ - 3} = \frac{12}{ - 3} \\ \\ \sf \frac{ - 3}{ - 3} = 1: \\ \sf \implies m = \frac{12}{ - 3} \\ \\ \sf - \frac{12}{3} = - 4 : \\ \sf \implies m = - 4$

7 0

3 years ago

PLS HELPS ME!!!!!!!!!!!!

777dan777 [17]

Answer:

Step-by-step explanation:

1).

(a). Yes, the graph is linear.

(b). Rate of change is a slope m, m = (60 - 80) / (10 - 0) = - 2

2). Graph is not proportional, because y-intercept is (0, 80) and not (0, 0)

5 0

3 years ago

A cube has side length a. The side lengths are decreased to 40% of their original size. Write an expression in simplest form for

o-na [289]

$V=a ^{3}$ originally. Then you reduces the side lengths a so it will be $V=( \frac{2}{5} a)^{3} = \frac{8}{125}a^{3}$
Just note that 40% is the same as 2/5.

6 0

3 years ago

Carlos predicts he has 24 dollars in his wallet. If Carlos actually had 33 dollars, what was Carlos' percent error?

Serggg [28]

Learned this yesterday, lol.
It's basically just:
100[ (33-24)/24 ]
100[ 9/24 ]
100[ 0.375 ]
37.5%

5 0

3 years ago

Need help solving. Prefer you show each step in solving.

pashok25 [27]

Answer: 25

Step-by-step explanation:

To solve for UC, you can subtract the length of CN from UN.

UN=40

CN=15

40-15=25

7 0

3 years ago