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NemiM [27]
1 year ago
5

Solve the following: a) 4x 3= 2x + 7 b) 2x+6= 7x14

Mathematics
1 answer:
nikdorinn [45]1 year ago
7 0
<h2><u>Correct question</u> : 4x - 3 = 2x + 7 </h2>

<h2><u>Solution</u> : 4x - 3 = 2x + 7 </h2>

4x - 2x = 7 + 3 \\  \\ 2x = 10 \\  \\ x =  \frac{10}{2}  \\  \\ x = 5.

<h2>•••••••••••••••••••••••••••••••••••••••</h2>

<h2><u>Correct Question</u> : 2x + 6 = 7x - 14</h2>

<h2><u>Solution</u> : 2x + 6 = 7x - 14</h2>

2x - 7x =  - 14 - 6 \\  \\  - 5x =  - 20 \\  \\ x =  \frac{20}{5}  \\  \\ x = 4.

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20 pts, please help me asap
mrs_skeptik [129]
The answer is W
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3 years ago
What is the surface area of the square pyramid? ​
Schach [20]

Answer:

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6 0
3 years ago
A boat takes 4 hours to go 20 miles upstream. It can go 32 miles downstream in the same time. Find the rate of the current and t
KonstantinChe [14]
Let the boat speed in still water be b.
Let the current speed be c.
The speed going upstream is 20/4 = 5 mph.
The speed going downstream is 32/4 = 8 mph.
b - c = 5 ........(1)
b + c = 8 .......(2)
Adding equations (1) and (2) we get:
2b = 13
b = 13/2 = 6.5
Plugging in the value for b into equation (1) we find c = 1.5.
The boat speed in still water is 6.5 mph and the current speed is 1.5 mph.
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2 years ago
Write an algebraic expression for the word expression: <br> 15 divided by the sum of "d" and 3
Yuki888 [10]

the answer is

15/(3+d)

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3 years ago
Find the slope of a line that passes through the points (3, -1) and (-2, -5)
aleksklad [387]

Yo sup??

slope of a line=m

m=y2-y1/x2-x1

=-2-3/-5-(-1)

=1/4

Hope this helps

7 0
3 years ago
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