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babymother [125]
2 years ago
14

Find the value of n:

1" title="\frac{10}{n} = \frac{15}{6}" alt="\frac{10}{n} = \frac{15}{6}" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
Kobotan [32]2 years ago
5 0
<h2>Answer </h2><h2>value of <u>n=4</u></h2>

Step-by-step explanation:

Greetings !

Given expression

\frac{10}{n}  =  \frac{15}{6}

cross multiply

apply fraction cross multiply

if  \:  \: \frac{a}{b}  =  \frac{c}{d}  \:  \: then \:  \: a.d = b.c

10.6=n.15

simplify:

  • 10.6=60

Thus, 60=n.15

switch sides

n.15 = 60

divide both sides by 15

\frac{n.15}{15}  =  \frac{60}{15}

simplify

n = 4

Hope it helps!

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A number is increased by 5, and then squared.
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Answer:

E) x2 + 10x + 25

Step-by-step explanation:

A number is increased by 5, and then squared is

(x + 5)^2

When taken out of the parenthesis it is:

x2 + 10x + 25 is your answer.

6 0
3 years ago
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Which of these is not a method to solve systems of
Allushta [10]

Answer:

Fourth option

Step-by-step explanation:

The answer is the fourth option "difference of squares method." It's not the first option because the substitution method is when you pick one of the equation in a system of equations, solve it for a variable and then plug the variable into the other equation to help solve. It's not the second option because the graphing method is used to solve a system of equations by graphing the equations on the same coordinate plane, it's not the third option because the addition method is also known as the elimination method which is the third method to solving a system of equations. Therefore your answer is the fourth option.

Hope this helps.

5 0
3 years ago
Given f(x) = -x – 5, solve for a when f(x) = 4.
Gnoma [55]

Answer:

1

Step-by-step explanation:

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6 0
4 years ago
The racetrack is a winding 1/2 mile loop. Anton completes 13 laps in 13 minutes. If his speed is the same for each lap, write a
sergey [27]

Answer:

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Step-by-step explanation:

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4 0
3 years ago
What is the 8th term of the geometric sequence with this explicit formula?<br> an= 6.(-2)(n-1)
lilavasa [31]

Answer:

- 768

Step-by-step explanation:

Substitute n = 8 into the explicit formula, that is

a_{8} = 6 × (-2)^{7} = 6 × - 128 = - 768

7 0
3 years ago
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