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OlgaM077 [116]
3 years ago
5

Find the value of x.

Mathematics
1 answer:
Airida [17]3 years ago
5 0

Answer:

x = 10

Step-by-step explanation:

The 2 chords are equal in length so

7x + 5 = 9x - 15

2x = 20

x = 10

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CD player: $142.00<br>Sales tax: 5.5%​
zubka84 [21]

The total amount paid by a customer who purchased a CD player at $142.00 and sales tax of 5.5% is $149.81

<h3>Sales tax</h3>

  • Cost of CD player = $142.00
  • Sales tax = 5.5%

Amount of sales tax = 5.5% of $142.00

= 5.5/100 × 142

= 0.055 × 142

= $7.81

Total amount paid by customers = Cost of CD player + Amount of sales tax

= $142.00 + $7.81

= $149.81

Learn more about sales tax:

brainly.com/question/1700984

#SPJ1

6 0
2 years ago
If a pound of crab meat cost $14.85 how much would one ounce cost?
Lady_Fox [76]

Answer:

$0.929 per oz

Step-by-step explanation:

16 ounces are in one pound. So to find the answer you would do, 14.85 divided by 16 and round up if you prefer, which I did. The long answer is .928125

4 0
4 years ago
Read 2 more answers
The measure of each interior angle of a regular polygon is 120°. Find the number of sides.
Archy [21]

Answer:

6

Step-by-step explanation:

You can memorize these for the smaller shapes

for equilateral polygons:

triangle: 60

square: 90

pentagon: 108

hexagon: 120

Otherwise, I believe the formula is the total degrees in a polygon (s-2)*180 where s is the number of sides.

So the measure of each angle on average would be (s-2)*180/s.

There (s-2)*180/s = 120

180(s-2) = 120s

180s-360 = 120s

60s = 360

s = 6

6 0
3 years ago
a gym is selling monthly membership for $30 each and reusable water bottles for $7 each. the gym needs to make $1050 by the end
Gekata [30.6K]
X = gym memberships, and y = bottles of water
30x + 7y = 1050.....when x = 28
30(28) + 7y = 1050
840 + 7y = 1050
7y = 1050 - 840
7y = 210
y = 210/7
y = 30....so he would have to sell 30 water bottles
3 0
3 years ago
I need help ASAP please...............
Colt1911 [192]

Google it please!!!!!!!!!

7 0
3 years ago
Read 2 more answers
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