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4 years ago

Complete the pattern Blank 8570 blank 85.7 8.57 blank

Mathematics

1 answer:

Nataly [62]4 years ago

4 0

85700, 8570, 857, 85.7, 8.57, .857

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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;

$cupcakes= 2.75\\cookies= 3.00$

PLEASE MARK ME AS BRAINLIEST

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3 years ago

A line has a y-intercept of -2, but has no x-intercept. Describe

frutty [35]

If it has no x-intercept, it is a horizontal line going through 0,-2. hope this helps

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3 years ago

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What is 69/8 as mixed number?

Dafna1 [17]

There you go
..............

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3 years ago

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mixer [17]

Answer:

201

151

Step-by-step explanation:

Addition and subtraction

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3 years ago

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Reika [66]

Answer:

Use a converation table and figure out 4/4-1/4 and that would be how much you would add for a new cup of sugar

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3 years ago