3 years ago

I need some help with this question

Mathematics

1 answer:

Dafna1 [17]3 years ago

6 0

Answer:

300 students

Step-by-step explanation:

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3x2 + 2(x2 – 20) = 16 - 2x2

lana66690 [7]

3x(2) + 2(2x - 20) = 16 - 2x(2)

6x + 4x - 40 = 16 - 4x

10x - 40 = 16 - 4x

14x - 40 = 16

14x = 56

x = 4

Hope this helps! ;)

8 0

3 years ago

When Joseph finished packing his backpack, it had a mass of 5 kilograms. What was the mass of the backpack in grams

worty [1.4K]

There is 1000 grams in a kilogram so he had a mass of 5,000 grames in his bag

7 0

4 years ago

Suppose y varies directly with x. Write a direct variation equation that relates x and y.

timama [110]

$\huge\mathfrak\purple{Answer:-}$

★ Option (A) y = -5x is the right answer.

<h3>I hope this helps! :)</h3>

8 0

3 years ago

What is the product of 3x(x2 4)? x2 3x 4 3x3 4 3x3 12x 3x2 12x.

iVinArrow [24]

Answer:

3x(x2 + 4)

Then use the distributive property

SO the final answer would be: 3x^3 +12x

Step-by-step explanation:

5 0

3 years ago

Solve: -(6x+ 8) = 4(17 - x) *

Vlad1618 [11]

Answer:

Isolate the variable by dividing each side by factors that don't contain the variable.

x = − 38

Step-by-step explanation:

4 0

3 years ago

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