2 years ago

"!MATH!" How do you solve x+2=3x-4? Please explain step-by-step.

Mathematics

1 answer:

ki77a [65]2 years ago

8 0

I will give you my solution down here
3x-x=2+4
2x=6
x=3

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Sarah bought 18 boxes of 65 pens at $12 a box. She sold 378 of them at 3 for $1.00 and the rest at 4 for $1.00. Find her total p

KonstantinChe [14]

Answer:

$108

Step-by-step explanation:

1 box = $12

18 boxes = 12×18 = $216

Total = 18×65 = 1170 pens

Cost price, Cp = $216

3 = $1

378 = 378/3 = $126

1170-378= 792 pens remaining

4 = $1

792 = 792/4 = $198

Total selling price, sp = 126+198 = $324

Profit = Sp - Cp = 324 - 216 = $108

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2 years ago

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Answer:

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GaryK [48]

Answer:

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Step-by-step explanation:

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2 years ago

Solve this inequality for x 81 -1 1/5r <55

allsm [11]

$81-1\dfrac{1}{5}r < 55\qquad|\text{subtract 81 from both sides}\\\\-\dfrac{1\cdot5+1}{5}r < -26\qquad|\text{change the signs}\\\\\dfrac{6}{5}r > 26\qquad|\text{multiply both sides by 5}\\\\6r > 130\qquad|\text{divide both sides by 6}\\\\r > \dfrac{130}{6}\\\\r > \dfrac{65}{3}\to r > 21\dfrac{2}{3}$

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2 years ago

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Terrell used wired fencing to form a border around a circular region vin his backyard. If the radius of the circular region was

eimsori [14]

Answer:

37.7 yd

Step-by-step explanation:

The circumference of a circle can be found using the formula ...

C = 2πr

For a radius of 6 yd, the circumference is ...

C = 2π(6 yd) = 12π yd ≈ 37.7 yd

The length of the circular border was 37.7 yards.

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2 years ago