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3 years ago

What is 2/28=7/8 cross multiplied

Mathematics

1 answer:

siniylev [52]3 years ago

5 0

Answer:

see the explanation

Step-by-step explanation:

we have

$\frac{2}{28}=\frac{7}{8}$

we know that

To cross multiply, start by multiplying the numerator of the left-hand fraction by the denominator of the right-hand fraction.

2(8)

Then, multiply the numerator of the right-hand fraction by the denominator of the left-hand fraction.

7(28)

Next, set the 2 products equal to each other.

2(8)=7(28)

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Step-by-step explanation:

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Half-life of Po-210 is 140 days. If the initial mass of the sample is 5

Anna35 [415]

Answer:

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Step-by-step explanation:

we are given half-life of PO-210 and the initial mass

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3 years ago

Solve −3/4n≤3

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The three lines given below form a triangle. Find the coordinates of the vertices of the triangle.

LenKa [72]

Answer:

(3, 5), (1, 2) and (5, 1)

Step-by-step explanation:

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Double the second equation and subtract equations:

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-3x - 4x = 1 - 22
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2*3 + y = 11
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y = 11 - 6
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The point is (3, 5)

2) Line 1 and line 3

-3x + 2y = 1
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Triple the second equation and add up equations:

-3x + 2y + 3(x + 4y) = 1 + 3(9)
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2 years ago