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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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The original price was $20,000 the sales price was $18,000 what is the percent discount
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Answer:

10 percent :)

Step-by-step explanation:

Discount = Original Price x Discount %/100

Discount = 20000 × 10/100

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You save = $2,000.00

Final Price = Original Price - Discount

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Final Price = $18,000.00

i hope this helps! pls stay happy and healthy, friend! :))

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2 years ago
What has a one dimensional and have infinite length
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Liz train for rock climbing 4 days a week
Goshia [24]
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A scale for a scale drawing is 10 cm: 1 mm which is larger the actual object or the scale drawing
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3 years ago
What does this equal?
myrzilka [38]

Answer:

x²y²+xy²+3+xy+2y²

Step-by-step explanation:

(2x²y²+x²y+xy²+3)-(x²y²+x²y²+x²y-xy-2y²)

1. remove the parentheses (when there’s - in front of an expression  in parentheses  change the sign of each term of the expression)

2x²y² + x²y + xy² + 3-x²y² - x²y² - x²y + xy - 2y²

2. eliminate the opposites

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3. collect like terms

x²y² + xy² + 3 + xy + 2y²

4 0
3 years ago
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