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2 years ago

Solve for X. Show your work 3x(2x - 5) = (3x - 4)(2x + 1)

Mathematics

1 answer:

laila [671]2 years ago

5 0

3x(2x - 5) = (3x - 4)(2x + 1)

6x² - 15x = 6x² + 3x - 8x - 4

6x² - 15x - 6x² - 3x + 8x = -4

-10x = -4 / : (-10)

x = 0,4

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Levart [38]

Answer:

(-9, 3)

Step-by-step explanation:

To rotate a point 270°:

R₂₇₀ (x, y) = (y, -x)

So the answer would be (-9, 3).

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3 years ago

3 groups of students went to the burger barn for a study break and snack. the first group ordered 4 burgers, 5 fries, and 7 drin

lora16 [44]

Answer:

Cost of one burger, a = $3.35

Cost of one fries, b = $0.9

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Step-by-step explanation:

Let

a be cost of one burger

b be the cost of on fry

c be the cost of on drink

So for the 1st group, 4a+5b+7c = $25.60 -----------(1)

for the 2st group, 8a+5b+6c = $37.90 ----------(2)

for the3st group, 12a+10b+11c = $61.30 ----------(3)

Now solving (1) and (2)

That is (1) x 2 - (2) gives,

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Now, (1) x 3 - (3), we get

5b+10c = 15.5 ---------------------(5)

Solving (4) and (5), we get

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Now putting c in equation (4), we get

b = 0.9

Now from (1), we get

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3 years ago

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Step-by-step explanation:

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2 years ago

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Answer:

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Step-by-step explanation:

The given inequalities are

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$2x+10-10$

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Divide both the sides by 2.

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Since x > 20 and x < 50, therefore Malcolm needs to consume more than 20 grams of carbohydrates, but less than 50 grams of carbohydrates.

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3 years ago

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Answer:

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Step-by-step explanation:

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2 years ago