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3 years ago

What is 135/15 simplified

Mathematics

2 answers:

gizmo_the_mogwai [7]3 years ago

7 0

Answer:

Step-by-step explanation:

Divide 135 by 15.

lakkis [162]3 years ago

5 0

Answer: 9

Step-by-step explanation:

To divide 135/15, we use the greatest common factor of 15

135/15 =9

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3 years ago

Calculate S30 for the arithmetic sequence defined by {an}={3.1n-2}

timurjin [86]

Answer:

c) 1,381.5.

Step-by-step explanation:

First term = 3.1 *1 - 2 = 1.1

2nd term = 3.1*2 - 2 = 4.2

3rd term = 3.1*3 - 2 = 7.3

so the common difference d = 3.1.

S30 = (30/2) [ 2* 1.1 + (30-1) * 3.1)]

= 1,381.5.

3 0

2 years ago

Five years ago Sara's aunt was four times as old as Sara. If Sara's aunt is 42 years older than Sara, how old is Sara now? Pleas

Nadusha1986 [10]

Adding a comment so the other answerer can get Brainliest :)

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2 years ago

−9x (5x+4 ) +10 (x+3) can someone please solve his for me thank u step by step please i really need to find out how to do it

Ivahew [28]

Answer:

-45 $x^{2}$ -26x+30

Step-by-step explanation:

So first you let's divide this equation into three parts.

Part one -9x(5x+4)

Step one: you have to distribute the -9x to the numbers in the parentheses. That would leave us with a -9x*5x = -45 $x^{2}$ and -9x*4 = -36x
Step two: Put the answers together. That would leave us with -45 $x^{2}$ -36x.

Part two 10(x+3)

Step one: you have to distribute the 10 to the numbers in the parentheses. That would leave us with a 10*x = 10x and 10*3 = 30
Step two: Put the answers together. That would leave us with 10x+30

Part three solve

Step one: combine and put together what you have solved for. That would leave us with a -45 $x^{2}$ -36x+ 10x+30
Step two: combine like terms. The like terms here are -36x and 10x. When you combine them you would get -26x.
Step three: Write the equation in standard form. Therefore the answer is -45 $x^{2}$ -26x+30.

Let me know if anything is confusing!

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2 years ago

A 3-meter roll of red ribbon costs $1.89. What is the unit price?

Elan Coil [88]

Answer:

The price of ribbon is $0.63 per meter.

Step-by-step explanation:

It is given that:

Cost of 3 meter ribbon = $1.89

Unit price per meter = $\frac{1.89}{3}$

Unit price per meter = $0.63 per meter

Therefore,

The price of ribbon is $0.63 per meter.

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3 years ago