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charle [14.2K]
3 years ago
11

What is the value of the expression -10-(-20)

Mathematics
2 answers:
Rasek [7]3 years ago
8 0

Answer:

What he/she said

Step-by-step explanation:

mart [117]3 years ago
5 0

Answer:

10

Step-by-step explanation:

-10-(-20)

A negative and a negative is addition

-10+20=10

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The sum of two numbers is 15. four times the smaller number is 60 less than twice the larger number. what is the larger number?
kirza4 [7]
X = smaller number, y = larger number
x + y = 15.....x = 15 - y
4x = 2y - 60

4(15 - y) = 2y - 60
60 - 4y = 2y - 60
60 + 60 = 2y + 4y
120 = 6y
120/6 = y
20 = y <==== larger number is 20

x + y = 15
x + 20 = 15
x = 15 - 20
x = - 5
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4 years ago
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4 0
4 years ago
Convert 123 cm to dam
kondaur [170]
123 centimeters into dekameters
0.123
10 centimeters = 1 decimeter
100 decimeters = 1 dekameter
Therefore, 100 centimeters = 10 decimeters = 0.1
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8 0
3 years ago
Name all the corresponding congruent angles and sides? Then complete the triangle congruence statement?
Flura [38]

Answer:

Angle A = Angle Y

Angle B = Angle Z

Angle C = Angle X

AB = YZ

AC = YX

BC = ZX

Triangle ABC = Triangle YZX

Step-by-step explanation:

Find this by looking at the corresponding parts on the other triangle. They have the same marking on them. Make sure that when answering for segments or triangles that the order is the same on both sides.

6 0
3 years ago
Determine if the expression x2 + 1 is a
borishaifa [10]

Answer:

Yes it is,

Step-by-step explanation:

Degree 1 (Exp 1) and it has 2 elements (2X and 1)

7 0
3 years ago
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