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Artist 52 [7]
4 years ago
15

What is [-20+7]-[-12-12]

Mathematics
1 answer:
lora16 [44]4 years ago
5 0
-13 or -5 I’m not sure
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Help me will give brainliest
vovangra [49]

Answer:

The first option is correct, 12/30 and 25/30

Step-by-step explanation:

To get common denominators, you need to find the GFC (greatest common factor) of 5 and 6, which is 30. Then you would need to make the fractions equal the same as the original fractions, by multiplying.

2/5 = ?/30 <- you can see that 30 is 6 times more than 5. so this means you multiply 2 by 6 to get 12. 12/30

5/6 = ?/30 <- you can see that 30 is 5 times more than 6. so this means you multiply 5 by 5 to get 25. 25/30

3 0
3 years ago
Question is in image <br> In the diagram below, ST is parallel to PR
likoan [24]

Answer:

  D.

Step-by-step explanation:

There is nothing in the figure to indicate the triangles are isosceles. This eliminates answer choices A, B, C.

Answer choice D is a required step in the proof, but only gets part of the way. The triangle similarity means ...

  SQ/PQ = TQ/RQ

From here, you need to decompose each of the sides PQ and RQ into parts. Then you can get to the desired relationship.

  (PQ -PS)/PQ = (RQ -RT)/RQ . . . segment sum theorem

  1 - PS/PQ = 1 -RT/RQ . . . . . . . do the division

  -PS/PQ = -RT/RQ . . . . . . . . subtract 1 (subtraction property of equality)

  PS/PQ = RT/RQ . . . . . . . . multiply by -1 (multiplication property of equality)

5 0
3 years ago
9* – 5( 3*+1) + 54= 0
Kobotan [32]

Answer:

43=0

this should be the answer :)

6 0
4 years ago
Alison bought 12 cases for a party. She gave the cashier $30 and was given $3.24 in change. How much did Alison pay for one case
Archy [21]

Answer:

$2.23

Step-by-step explanation:

30 - 3.24 = 26.76

26.76 ÷ 12 = 2.23

6 0
3 years ago
Read 2 more answers
Which method is the fastest way to solve this equation. 2x^2 = 200
Vesnalui [34]
B 

2x^2 / 2 = 200/2
x^2 = 100
x = +/- 10 Answer
5 0
3 years ago
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