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2 years ago

Which expression is equivalent to -5a + a -7a

Mathematics

1 answer:

Bess [88]2 years ago

5 0

Answer:

-11a

Step-by-step explanation:

To get the answer, you must combine these terms because they are like terms. -5a+a = -4a, and -4a-7a = -11a. Therefore, the answer is -11a.

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Write an algebraic expression for each:

viktelen [127]

Answer:

X + 45

X + 12

1 - x

X - 13

Step-by-step explanation:

Using the keywords sum of, more than, and subtracted will help you. (You can also flip the expression since it didn't say how.

8 0

2 years ago

Work out the size of angle X.

larisa [96]

Answer:

x = 70°

Step-by-step explanation:

The external angle of a triangle is equal to the sum of the 2 opposite interior angles.

120° is an external angle of the triangle, thus

x + 50 = 120 ( subtract 50 from both sides )

x = 70

5 0

2 years ago

Solve the inequality, enter it in interval notation , 6x+3<8(8x+6)+3

garik1379 [7]

Answer:

The answer to your question is: ( - 24 / 29, ∞ )

Step-by-step explanation:

6x + 3 < 8 (8x + 6) + 3

6x + 3 < 64x + 48 + 3

6x + 3 < 64x + 51

6x - 64x < 51 - 3

- 58 x < 48

x > - 48 / 58

x > - 24 / 29

( - 24 / 29, ∞ )

5 0

2 years ago

Frankie the frog stands at the number 0 on a number line and wants to hop to the number 8. he can hop 1, 2, 3 units forward in a

ycow [4]

In order to hop 8 units, you can do:

1 two-units hops, 2 three-units hops

4 two-units hops

1 one-unit hops, 2 two-units hops, 1 three-units hops

2 one-unit hops, 2 three-units hops

2 one-unit hops, 3 two-units hops

3 one-unit hops, 1 two-units hops, 1 three-units hops

4 one-unit hops, 2 two-units hops

5 one-unit hops, 1 three-units hops

6 one-unit hops, 1 two-units hops

8 one-unit hops

7 0

2 years ago

10 – 2v = -5v – 50 what is V

Virty [35]

I think it’s v=-20 i showed you my work if that helps :)

4 0

3 years ago