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aliina [53]
3 years ago
13

Please help me thanks ​

Mathematics
1 answer:
malfutka [58]3 years ago
6 0
I believe it would be the last answer, 6.25
if this is correct i’m very sorry, but if this helps, please mark brainliest. :)
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The librarian purchased 22 copies of a best-selling book for $385.66.
kow [346]

Answer:

$17.53

Step-by-step explanation:

$385.66 divided by 22 equals the how much each book cost

5 0
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Pls help <br><br> Find the value of X in the triangle.
Julli [10]

Answer:

d

Step-by-step explanation:

12

4 0
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Why is a graphical solution not always appropriate for a system of equations?
BigorU [14]

Answer:

because it may not be suitable for all the time

4 0
3 years ago
Point A is at (-7,5) and point is at (5,-1).
olga55 [171]

Answer:

B = (3, 5)

Step-by-step explanation:

Point A is at (-7,5) and point C is at (5,-1).  Find the coordinates of point B on AC such that AB is 5 times longer than BC.  Then, B split AC in a 5:1 ratio.

rise = yC - yA = -1 - 5 = -6

run = xC - xA = 5 - (-7) = 12

c = 5/(5+1) = 5/6

B = (xA + c*run, yA + c*rise)

B = (-7 + 5/6*12, 5 + 5/6*-6)

B = (3, 5)

8 0
3 years ago
Read 2 more answers
Please help me asap<br>​
Lera25 [3.4K]

Answer:

Step-by-step explanation:

From the picture attached,

∠4 = 45°, ∠5 = 135° and ∠10 = ∠11

Part A

∠1 = ∠4 = 45°  [Vertically opposite angles]

∠1 + ∠3 = 180° [Linear pair of angles]

∠3 = 180° - ∠1

     = 180° - 45°

     = 135°

∠2 = ∠3 = 135°  [Vertically opposite angles]

∠8 = ∠5 = 135° [Vertically opposite angles]

∠5 + ∠6 = 180° [Linear pair of angles]

∠6 = 180° - 135°

∠6 = 45°

∠7 = ∠6 = 45° [Vertically opposite angles]

By triangle sum theorem,

m∠4 + m∠7 + m∠10 = 180°

45° + 45° + m∠10 = 180°

m∠10 = 180° - 90°

m∠10 = 90°

m∠10 = m∠12 = 90°  [Vertically opposite angles]

m∠10 = m∠11 = 90° [Given]

Part B

1). ∠1 ≅ ∠4  [Vertically opposite angles]

2). ∠7 + ∠5 = 180° [Linear pair]

3). ∠9 + ∠10 = 180° [Linear pair]

7 0
3 years ago
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