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victus00 [196]
3 years ago
9

10. Simplify this expression: 13+ (-12) - (-5) = ? A.-30 B. -6 C.6 D. 30

Mathematics
2 answers:
son4ous [18]3 years ago
5 0

Answer:

C

Step-by-step explanation:

Noting that

+ (- ) is equivalent to subtraction

- (- ) is equivalent to addition

Given

13 + (- 12) - (- 5)

= 13 - 12 + 5

= 1 + 5

= 6 → C

DaniilM [7]3 years ago
5 0

Answer:

C) 6

Step-by-step explanation:

13 + (-12) - (-5) = 13 + (-12) + 5

                       = 1 +5

                      = 6

13 & (-12 ) have different sign, so subtract and put the sign of the greater number's sign.

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Trinh is serving 112 people cake , 5/8ths are getting chocolate how many people will get carrot ?
Novay_Z [31]
Hey! 

If 112 people are getting cake and 5/8 are getting chocolate, that means the remaining will get chocolate.

8/8 - 5/8 = 3/8

3/8 are getting chocolate. You have to find 3/8 of 112.

3/8 × 112 = 336/8 = 42

42 people are getting carrot cake

:)
5 0
3 years ago
How I get x for number 7
lakkis [162]

Answer:

x = 50

Step-by-step explanation:

Angles of a triangle add up to 180°.  So the third angle of the triangle on the right is:

180° − 43° − 57° = 80°

Vertical angles are congruent, so the angle on the other side is also 80°.  Therefore:

x° + x° + 80° = 180°

2x° = 100°

x = 50

6 0
4 years ago
Find the inequality of the graph, please help
vodomira [7]
The gradient of the line is 2.5, the y-intercept is 5.

The equation representing the line is y = 2.5x + 5

Based on the concept mentioned in my previous answers to your questions, this means the shaded region is represented by y ≤ 2.5x + 5
4 0
3 years ago
Nick's dad wanted to measure the length of his backyard and asked Nick to do this with his footsteps. Since it was winter, they
Lerok [7]

Answer:

2244 cm

Step-by-step explanation:

The first first thing we must do is find the LCM of the following numbers

(51; 68) = 204.

This means that the first time they coincide is at 204.

Now, since his steps always coincide after 204

In Nick's case

Nick's 204 ÷ 51 = 4th step

and in the case of the father

204 ÷ 68 of his father = 3rd step.

Which means that in the 204 cm distance, there will be a total of 6 foot steps, except in the first 204 cm when your "initial" step is counted.

Replacing these values we have that the total distance will be:

67-1 (initial step) / (6 * 204) = 2244 cm

7 0
3 years ago
1) three times a number is equal to thirty​
KIM [24]

Answer:

10!!

Step-by-step explanation:

10 x 3 = 30

10 + 10 + 10 = 30

7 0
3 years ago
Read 2 more answers
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