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3 years ago

Solve the following proportion for x

Mathematics

1 answer:

fenix001 [56]3 years ago

8 0

5:8
X:7

Cross multiply :
= 7(5)=8x

35=8x
Now divide both sides by 8
35/8= x
x= 4.375

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Factor: m^2 - 20m - 21

Anton [14]

Answer: (m-21)(m+1)

Step-by-step explanation:

To factor this trinomial, find two numbers that multiply to -21 and add to -20:

(-21)(1)=-21

-21+1=-20

They are -21 and 1.

Add -21 and 1 to m to get both factors:

(m+(-21)) and (m+1)

(m-21) and (m+1)

Multiply them to get the answer:

(m-21)(m+1)

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3 years ago

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Sphinxa [80]

Answer: 13/15

Step-by-step explanation:

1 2/3 - 4/5

Use LCD or least common denominator:

1 10/15 - 12/15 =

25/15 - 12/15 =

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4 years ago

Can anybody explain to me what this question mean so it says "8 more than a number n is written ___________ in algebraic form"

Umnica [9.8K]

Answer:

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Hope This Helps!!! :D

3 0

3 years ago

Read 2 more answers

What is the product? One-eighth times three-elevenths 3 over 88 1 over 22 4 over 19 35 over 88

kipiarov [429]

Answer:

$\frac{3}{88}$

Step-by-step explanation:

Given

One-eighth times three-elevenths

Required

Solve

One-eighth means 1/8

Three-elevenths means 3/11

So, mathematically; the above expression is represented as thus:

$\frac{1}{8} * \frac{3}{11}$

To solve this, we simply multiply the numerator and the denominator together.

After multiplying these together, the next is to check if the resulting can be simplified

If yes,we simplify it and if otherwise, we live it like that.

So,

$\frac{1}{8} * \frac{3}{11}$

$=\frac{1 * 3}{8 * 11}$

$= \frac{3}{88}$

At this point, the fraction can't be simplified any further.

Hence,

$\frac{1}{8} * \frac{3}{11} = \frac{3}{88}$

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3 years ago

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Harman [31]

Answer:

1/3

Step-by-step explanation:

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2 years ago