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3 years ago

5.) Solve 2x–71 = 12. Be sure to show all of your work.

Mathematics

2 answers:

Scilla [17]3 years ago

3 0

Answer:

x = 41.5

Step-by-step explanation:

2x = 83

x = 83/2

x = 41.5

rosijanka [135]3 years ago

3 0

Answer:

Step-by-step explanation:

To solve this problem, first, you have to isolate x on one side of the equation.

2x-71+71=12+71 (First, add 71 from both sides.)

12+71 (Solve.)

12+71=83

2x=83

2x/2=83/2 (Then, divide by 2 from both sides.)

83/2 (Solve.)

83/2=41.5

x=83/2=41.5

So, the correct answer is x=83/2=41.5.

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Crazy boy [7]

Answer:

Step-by-step explanation:

( 0, 0) and (-3 , -2)

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3 0

3 years ago

Will up-vote!

klasskru [66]

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3 years ago

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olganol [36]

Answer:

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2 years ago

Evelyn and Meredith decided to kayak 1 mile up and then back in the Humboldt channel.

Yakvenalex [24]

The rate of the water flowing in the channel was 2 miles per hour, the rate Evelyn and Meredith were paddling is mathematically given as

v+ = 2.29 1mile/hour

<h3>What is the rate Evelyn and Meredith were paddling?</h3>

Generally, the equation for the up and downstream motion is mathematically given as

vup=v-2

vdown=v+2

Therefore, Statement interpretation

2/3=40*1/60

3+2/3hr=11/3

Where, tup+tdown=11/3

tup+tdown=11/3

1/Vup+1/vdown=11/3

Considering the LCD equation

3(v-2)(V+2)

Hence

$\frac{3(v-2)(v+2)}{v-2}+\frac{3(v-2)(v+2)}{v+2}=\frac{11(3)(v-2)(v+2)}{3}\\\\3(v+2)+3(v-2)=11(v+2)(v-2)$

11v^2-6v-44=0

$v=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

Resolving using the equation we have

v+ = 2.29 1mile/hour

v- = -1.745 mile hour