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Dennis_Churaev [7]
3 years ago
8

3.) a + 40 = 0 What is the value of a? a =

Mathematics
2 answers:
Rus_ich [418]3 years ago
3 0

Answer:

a= -40

Step-by-step explanation:

Dmitry [639]3 years ago
3 0

Answer:

a = - 40

Step-by-step explanation:

a+40=0

First way:

Transpose 40 to the other side (to isolate a) - when transposing signs change ( from positive to negative)

Second way:

Subtract both side what 40 (to cancel 40 and isolate a)

* you have to always isolate variables

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Match each subtraction problem on the left with the equivalent simplified expression on the right.
Ahat [919]

Answer:

A-3, B-4, C-1, D-2

Step-by-step explanation:

A:

  • 5x-(3x+1)
  • Expand, 5x-3x-1
  • Combine like terms, 2x-1

B:

  • 5x-(-3x-1)
  • Expand, 5x+3x+1
  • Combine like terms, 8x+1

C:

  • -5x-(3x+1)
  • Expand, -5x-3x-1
  • Combine like terms, -8x-1

D:

  • -5x-(-3x-1)
  • Expand, -5x+3x+1
  • Combine like terms, -2x+1

4 0
3 years ago
ANYONE PLEASE HELP!!
lapo4ka [179]

Answer:

A

Step-by-step explanation:

Corresponding angles are angles that you can follow down the transversal and they will land in the same spot on the other parallel line.  Look at angle 8.  It is the bottom left angle in the group of 4 angles around it.  If you slide it to the left it would land right on top of angle 4 which is also in the bottom left of its group of 4 angles.

You can do the same thing taking angle 8 down to angle 12.

4 0
2 years ago
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Match the graph to the correct inequality.
Trava [24]
The answer to the question is b
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3 years ago
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A fan is marked up 40% on the original price. The original price was $20. What is the new price of the fan before sales tax?
JulsSmile [24]

Answer:

$28

Step-by-step explanation:

40% of 20 is 8

20 + 8 = 28

8 0
3 years ago
Maria has a 30% coupon for her $60 dollar jeans, what is the new price
yKpoI14uk [10]

Answer:

$42

Step-by-step explanation:

Since she has a 30% coupon, the new price of the jeans will be 30% of the original price subtracted from the original price

Original price = $60

Therefore

30% of $60

Make 30% a decimal

30/100 x $60

0.3 x $60 = $18

New price = $60 - $18

= $42

The new price for the jeans is $42

3 0
3 years ago
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