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Sauron [17]
3 years ago
10

Melanie sold half of her comic books and then bought 9 more. She now has 17. How many did she begin with?

Mathematics
2 answers:
Paha777 [63]3 years ago
7 0
The answer is = 16
I solved by the one variable one grade

Vadim26 [7]3 years ago
4 0

Answer:

16

Step-by-step explanation:

You need to work backwards and do the opposite

So, first do subtraction since Melanie added to her collection. SO do the opposite of addition.

17-9=8

Then, since she sold half of her comics, and she is dividing her collect, you multiply 8 with 2.

8 x 2=16

<u>Final answer</u>

16 comics

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11%

Step-by-step explanation:

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8 0
3 years ago
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What is the measure of SQ?<br><br> 1. 95<br> 2. 190<br> 3. 265<br> 4. 360
Vesnalui [34]

Answer:

The measure of arc SQ is 95° ⇒ (1)

Step-by-step explanation:

  • The measure of any circle is 360°
  • The measure of the subtended arc to an inscribed angle is twice the measure of this angle

In the given circle

∵ S lies on the circumference of the circle

∴ ∠QSR is an inscribed angle

∵ ∠QSR is subtended by arc QR

→ By using the 2nd rule above

∴ m arc QR = 2 × m∠QSR

∵ m∠QSR = 95°

∴ m arc QR = 2 × 95

∴ m arc QR = 190°

→ By using the 1st rule above

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∵ m arc SR = 75° and m arc QR = 190°

→ Substitute them in the equation above

∴ 360 = 190 + m arc SQ + 75

→ Add the like term in the right side

∴ 360 = 265 + m arc QS

→ Subtract 265 from both sides

∵ 360 - 265 = 265 - 265 + m arc SQ

∴ 95° = m arc SQ

∴ The measure of arc SQ is 95°

7 0
3 years ago
I’d appreciate itttttttt soooo muchhh if you even do only one, it’s easy but I’m tiredddddd
zubka84 [21]

Answer:

1. x= -1/3

2. y= -4, x= 2

3. y=-2, x=1

Step-by-step explanation:

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