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Vesna [10]
3 years ago
12

PLSSS HELP IF YOU TURLY KNOW THISS

Mathematics
2 answers:
KonstantinChe [14]3 years ago
7 0

Answer: x=5

Step-by-step explanation:

\frac{2x+0.8}{9}=1.2

\mathrm{Multiply\:both\:sides\:by\:}9

\frac{9\left(2x+0.8\right)}{9}=1.2\cdot \:9

\mathrm{Simplify}

2x+0.8=10.8

\mathrm{Subtract\:}0.8\mathrm{\:from\:both\:sides}

2x+0.8-0.8=10.8-0.8

Simplify

2x=10

\mathrm{Divide\:both\:sides\:by\:}2

\frac{2x}{2}=\frac{10}{2}

Simplify

x=5

Gnoma [55]3 years ago
4 0

Answer:

5

Step-by-step explanation:

2x+.8/9= 1.2

Step 1- Multiply 9 on both sides.

2x+ 0.8 =10.8

Step 2- Subract 0.8 on both sides.

2x= 10

Step 3- Divide 2 on both sides

x=5

hope this helps :)

let me know if you need any other help!

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3 years ago
PLEASE HELP ASAP!!!!!!!!!
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Step-by-step explanation:

Please mark brainliest!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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They met 480 meters from the house.

<h3><u>Calculus</u></h3>

Given that Noah and his grandfather were returning home from a walk, and when they were 800 m away from the house, the grandfather said that he was thirsty, so Noah immediately ran home, got a bottle of water, and ran back to meet his grandfather who never stopped walking at a steady pace, to determine how many meters from the house did they meet if noah ran four times as fast as his grandfather walked, the following calculation must be made:

  • 200 x 4 = 800 - 200 = 600
  • 300 x 4 = 1200 - 800 - (800 - 300) = 100
  • 325 x 4 = 1300 - 800 - (800 - 325) = -25
  • 320 x 4 = 1280 - 800 - (800 - 320) = 480 - 480 = 0

Therefore, they met 480 meters from the house.

Learn more about calculus in brainly.com/question/26453068

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