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Basile [38]
2 years ago
9

8x(12+7-9)-(4+10) what’s the answer

Mathematics
1 answer:
navik [9.2K]2 years ago
6 0

Equation- 8x(12+7-9)-(4+10)

Answer- 80x−14

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2. Are the expressions -5 + -2 and -5 – 2 equivalent? Why or why not? Explain and show your work.
scoray [572]

Answer:

Yes, the expressions are equivalent.

Step-by-step explanation:

Notice that -2  is defined as in additive inverse of 2, that is, 2 + -2 = 0.

and substracting 2 from 2 is also equal to zero, that is, 2 - 2 = 0.

Thus 2-2 = 2+ -2, implying -2 = + -2. Consequently, -5 + -2 = -5 -2

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4 years ago
What is the solution of −21 = n − 8?
PilotLPTM [1.2K]

Answer:

N=-13

Step-by-step explanation:

8 0
4 years ago
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HELPPP MEEE PLZZ ok so If i have 70$ dollars the amout is just right so i can buy 4kg of fish and 3kg of prawn so i bought it an
Kaylis [27]

Answer:

x = (66.50 - 4y) / 3

Step-by-step explanation:

Given that:

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Total amount used for purchasing prawn and fish:

Kg of fish = 4

Kg of prawn = 3

1 kg prawn will cost, x

If 1 kg of fish = y

(Total amount spent - cost of 4 kg fish) / Number of kg of prawn

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5 0
3 years ago
The rule for a line whose gradient is<br> -4 and y-intercept = 8 is:
irina [24]

Answer:

The rule for a line whose gradient is -4 and y-intercept = 8 is

y=-4x+8

Step-by-step explanation:

Equation of line slope intercept form is

y=mx+b  ------------- (1)

Where m is slope or gradient and b is y-intercept

<u>Here</u>

m=-4 \ \ \ and \ \ \ b=8

Substituting values in equation (1)

y=-4x+8

5 0
3 years ago
A certain company's main source of income is selling cloth bracelets.
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Answer: 4 dollars

Step-by-step explanation:

I just did it.

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3 years ago
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