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Tasya [4]
3 years ago
5

What is the answer for3+2x=-6x+4

Mathematics
1 answer:
bixtya [17]3 years ago
6 0

Answer:

x = 1/8 or in decimal form x = 0.125

Step-by-step explanation:

<u>Step 1:  Subtract 4 from both sides</u>

<u />3 + 2x - 4 = -6x + 4 - 4

2x - 1 = -6x

<u>Step 2:  Subtract 2x from both sides</u>

<u />2x - 1 - 2x = -6x - 2x

-1 = -8x

<u>Step 3:  Divide both sides by -8</u>

<u />-1 / -8 = -8x / -8

1/8 = x

x = 0.125

Answer:  x = 1/8 or in decimal form x = 0.125

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Zina goes shopping. She buys in the same store two scarves and three T-shirts for
Umnica [9.8K]

Answer:

The price of T-shirts before the sale = 42 euros

The price of scarves before the sale = -77/2 euros

Step-by-step explanation:

The cost of the items Zina buys from the store initially are;

Two scarves and three T-shirts for 49 euros

The reduction in the price of scarves a week later during sales = 1.5 euros

The reduction in the price of T-shirts a week later during sales = 2 euros

The items Zina bought for 40 euros at the reduced price of the sales opportunity are;

Four scarves and five T-shirts for 40 euros

Let 'x' represent the initial price of a scarf and let 'y' represent the initial price of a T-shirt, we  have;

2·x + 3·y = 49...(1)

4·(x - 1.5) + 5·(y - 2) = 40...(2)

Expanding equation (2) gives;

4·x - 6 + 5·y - 10 = 40

4·x + 5·y = 40 + 6 + 10 = 56

∴ 4·x + 5·y = 56...(3)

By multiplying equation (1) by 2 and subtracting the result from equation (3), we get;

4·x + 5·y - 2 × (2·x + 3·y) = 56 - 2 × 49 = -63

-y = -42

y = 42

The price of T-shirts before the sale = 42 euros

x = (49 - 3 × 42)/2 = -77/2

x = -77/2

The price of scarves before the sale = -77/2 euros

(However, if the had bought the 4 scarves and 5 T-shirts during sales at 70 euros, we get;

The price of T-shirts before the sale = 12 euros

The price of scarves before the sale = 6.5 euros.

The allowable total price for the reduced 4 scarves and 5 T-shirts is between 66 and about 82 for both initial prices to be +ve)

6 0
3 years ago
Given f(x) = -3x - 1, solve for f(x)= -4​
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Answer:

its 11

Step-by-step explanation:

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Answer:

Maggie bought 77 pencil sharpeners

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Step-by-step explanation:

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3 years ago
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MrRa [10]
45 / 3 = 15
45 - 15 = 30
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7 0
2 years ago
The hours of daylight,y, in Utica in days, x, from January 1, 2013 can be modeled by the equation y=3.06sin(0.017x-1.40) + 12.23
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make sure your calculator is in Degree mode.
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