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den301095 [7]
3 years ago
6

Geometry please help if you can​

Mathematics
1 answer:
erik [133]3 years ago
6 0

Area \:  of \:  sundial:3.14 \times  \frac{ {8}^{2} }{4}  = 3.14 \times 16 = 50.24 \:  {ft}^{2}  \\ Area \: of \: one \: section: \frac{50.24}{8}  = 6.28 \:  {ft}^{2}

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ASAP PLEASEEEEEEEE
shtirl [24]

Answer:

x = -122/13 OR 9.3846

Step-by-step explanation:

First, take a look at the second equation. Add 8x to the other side.

-7y= 8x -18

Then, divide by -7 to get a regular "y=" equation.

y= 8/7x -18/7

Move on the the first equation. Let's get "y" by itself. Add 3x to the other side.

y= 3x +15

Considering both equations are equal to Y, set them equal ( except the "y" part )

8/7x - 18/7 = 3x + 15

Multiply all by seven so that there are no fractions.

8x - 18 = 21x + 105

Subtract 8x from both sides.

-17 = 13x + 105

Subtract 105 from both sides.

-122 = 13x

Divide by 13 on both sides.

x = 9.3846

Or if you don't want decimals, just say x = -122/13

Quick Note: I made a mistake. I had looked at the second equation at -18. The answer is incorrect but the method of solving is correct. Also, make sure to plug in the value of x to get Y.

5 0
3 years ago
Games Galore Super Store buys the latest video game at a wholesale price of $58.00. The markup rate at Game’s Galore Super Store
IgorC [24]

Answer:

Step-by-step explanation:

30 + .40(30) =  30(1 + .40)  = 30(1.4)  = $42

5 0
3 years ago
Please help and EXPLAIN !!!!!!! thank you!!! =)))
nataly862011 [7]

The change in profit from 3 days to 8 days = 74 - 59 = $15

The number of days is 8-3 = 5 days

The change per day is 15 / 5 = $3 per day.

The answer is A. $3

5 0
2 years ago
Read 2 more answers
Suppose Q is the midpoint of PR. Use the information to find the missing value. PR = 9x-31 and QR = 43, find x?
alex41 [277]

Answer:

x=13

Step-by-step explanation:

Q is the midpoint of PR

PQ + QR = PR

PQ= QR

PQ+QR = PR

QF + QR = PR

2QR = PR

2*43 = 9x-31

86 = 9x-31

Add 31 to each side

86+31 = 9x-31+31

117 = 9x

Divide each side by 9

117/9 = 9x/9

13 =x

5 0
3 years ago
Read 2 more answers
Mark earned 108 points for his extra credit project.
Juli2301 [7.4K]

Answer:

  • 120 points

Step-by-step explanation:

Let the total points be x

<u>Mark earned 90% of x which is 108 points:</u>

  • 0.9x = 108
  • x = 108/0.9
  • x = 120

Total points were 120

5 0
2 years ago
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