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diamong [38]
3 years ago
13

A red balloon is 40 feet above the ground and rising at 2 feet per second. At the same time, a blue balloon is 60 feet above the

ground and falling at a rate of 3 feet per second. How long will it take for the two balloons to be the same height from the ground? Let s = the number of seconds since the balloons began moving.
WRITE AN EQUATION FOR THIS.
Mathematics
1 answer:
VikaD [51]3 years ago
4 0

Answer:

40+2s=60-3s

Step-by-step explanation:

The red balloon starts 40 feet off the ground and rises 2 feet per second. This means the height of the red ballon is 40+2s.

The blue balloon starts 60 feet off the ground at starts falling 3 feet per second. This means the height of the blue balloon is 60-3s.

Because we want to find out when the balloons will be the same height, we set them equal to each other.

40+2s=60-3s

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Answer: Remaining balance is $150

Step-by-step explanation:

Contact lens= $200

25% of the amount was paid

= 25/100 × 200 = $50

Out of $200 of contact lens, $50 was paid as deposit, subtract $200 from $50 to give balance.

$200 - $50 = $150

I hope this helps.

8 0
3 years ago
Help. I need an 80 in math by Friday, brainliest if you can help.
ehidna [41]

Answer:

26

Step-by-step explanation:

To find the area of the three combined shapes, multiply the length times the width of each and add them together. Five times two is 10, and since there are two identical rectangles (the top and the bottom one), the current combined area is 20. Three times two is 6. 20 + 6 = 26.

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3 years ago
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dexar [7]

Answer:

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Step-by-step explanation:

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7 0
3 years ago
Please help me out........ :)
Serhud [2]

Answer:

x = 5

Step-by-step explanation:

For the parallelogram to be a square we use the property

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8x - 23 = 17 ( add 23 to both sides )

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3 years ago
Is the expression -a always negative if you replace a with any real number
tensa zangetsu [6.8K]
Yes, unless you are solving an equation with two negatives.
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