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3 years ago

PLSSSSSSS PLSSSSS HELPPP 50 POINTSSSS ILL SEND 100 POINTS IF U HELP

Mathematics

1 answer:

Ilya [14]3 years ago

6 0

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Multiply -4x^-2y(2yx^3+6xy^3-3y^3x4)

Alenkinab [10]

Answer:

below here hopes it helps!

Step-by-step explanation:

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2 years ago

Sammy is conducting a science experiment where he has to mix 8.25 ounces of vinegar and 4.30 ounces of lemon juice.How many ounc

Degger [83]

He will mix 12.55 ounces together

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2 years ago

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154 - 4(1 + 6m) + 6m

polet [3.4K]

Answer:

6(25 - 3M)

Thats the correct answer

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3 years ago

Five cupcakes and two cookies cost $19.75. Two cupcakes and four cookies cost $ 17.50.

alina1380 [7]

Answer:

Step-by-step explanation:

Let x and y represent the cost of a cupcake and cookie respectively.

Given that;

Five cupcakes and two cookies cost $19.75.

$5x+2y=19.75 ---------- 1$

Two cupcakes and four cookies cost $17.50.

$2x+4y=17.50 --------------2$

Let's solve the simultaneous equation by elimination;

Multiply equation 1 by 2;

$10x+4y=39.50-------3\\$

Subtract equation 2 from equation 3;

$10x-2x+4y-4y=39.50-8x=22$

$8x=22$

divide both sides by 8

$\frac{8x}{8} =\frac{22}{8} \\x=2.75$

Since we have the value of x, let substitute into equation 1 to get y;

$5x+2y=19.75\\5(2.75)+2y=19.75\\13.75+2y=19.75\\2y=19.75-13.75\\2y=6\\y=\frac{6}{2} \\y=3.00$

therefore , the cost of cupcakes and cookies are;

$cupcakes= 2.75\\cookies= 3.00$

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2 years ago

If y varies directly as x, find the constant of variation if y = 12 when x = 1/3

Mashutka [201]

The constant is 36
because direct variation y/x

4 0

3 years ago