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Lerok [7]
3 years ago
10

If m = 9, what is the value of the expression 3m - 4?

Mathematics
2 answers:
fomenos3 years ago
8 0

Answer:

23

Step-by-step explanation:

  1. let's subsitute into 3m-4 using 9
  2. 3(9)-4
  3. now let's multiply 3*9 which is 27
  4. 27-4 = 23
  5. we are done :)
larisa [96]3 years ago
6 0

Answer: 23

Step-by-step explanation:

3(9) - 4

27 - 4

23

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What was Justin's error? Justin should have multiplied 12.5 and 7.9 first. Justin should have added 12.5 and 7.9 first. Justin s
Nezavi [6.7K]

Answer: Justin should have multiplied 3.8 and 7.9 first.

Step-by-step explanation:

The equation that was given with regards to the question is 12.5 + 7.9x and we are told that the value of x = 3.8

The error made by Justin was that he didn't multiply 3.8 and 7.9 at first. Solving the equation will be:

= 12.5 + 7.9x = 12.5 + 7.9(3.8)

= 12.5 + 30.02

= 42.52

4 0
3 years ago
What is the slope of this line?
kirza4 [7]

Answer:

1/4

Step-by-step explanation:

use 2 points from the graph (-4,5) and (0,6) and  put them in the distance equation.

(y2-y1)

----------

(x2-x1)

6-5

-------

0-(-4)

1/4

3 0
3 years ago
PLEASE HELP!!!!!!!!!!!! WILL GIVE CORRECT ANSWER BRAINLIEST!!!!!!!!!
Kaylis [27]

Answer:

multiply the width to the height to get your answer.

Step-by-step explanation:

6 0
3 years ago
Can someone show me step by step how to do this?
GenaCL600 [577]

\bf \cfrac{2}{3}(x-4)(x+5)=1\implies \cfrac{2(x-4)(x+5)}{3}=1\implies \stackrel{\textit{cross-multiplying}}{2(x-4)(x+5)=3} \\\\\\ 2(\stackrel{\mathbb{FOIL}}{x^2+x-20})=3\implies \stackrel{\textit{distributing}}{2x^2+2x-40}=3\implies \underset{\textit{standard form}}{\stackrel{\stackrel{a}{\downarrow }}{2}x^2\stackrel{\stackrel{b}{\downarrow }}{+2}x\stackrel{\stackrel{c}{\downarrow }}{-43}=0}


notice, that'd be the standard form for a quadratic equation, all variables on the left-hand-side, sorted in ascending order.

7 0
4 years ago
How many sixths are in three halves?
inn [45]

x/6 = 3/2

x = 18/2

x = 9

There are 9 sixths in three halves

3 0
3 years ago
Read 2 more answers
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