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3 years ago

How to solve it step by step -8+4(1+5n)=-6n-14

Mathematics

1 answer:

oksano4ka [1.4K]3 years ago

5 0

Answer:

n = -5/13

Step-by-step explanation:

-8+4(1+5n)=-6n-14 (from PEDMAS, expand parenthesis first)

-8+1(4) +5n(4)=-6n-14

-8+4 +20n=-6n-14

-4 + 20n = -6n -14 (add 6n to both sides)

-4 + 20n + 6n = -14

-4 + 26n = -14 (add 4 to both sides)

26n = -14 + 4

26n = -10 (divide both sides by 26)

n = -10/26 = -5/13

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4 years ago

A bottle of eyes drop has 0.45 fluid ounces of liquid.How much liquid is in 10fourth bottles of eye drops

hammer [34]

Option 1: 4500 Fluid Ounces is the correct answer

Step-by-step explanation:

The total fluid will be calculated by multiplying the amount of fluid in one bottle to the number of bottles

Given

$Liquid\ in\ one\ bottle=0.45\ fluid\ ounces\\Total\ number\ of\ bottles=10^4$

So,

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Option 1: 4500 Fluid Ounces is the correct answer

Keywords: Division, Multiplication

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3 years ago

2. Richmond Appliance repairs washing machines. The revenue that the company earns is given by the function R(h) = 20 + 45h doll

Vesnalui [34]

The number of hours needed for the company to break even happens when
$R(h)=C(h)$

$20+45h= 5h^{2}-30$ , rearranging to make the equation 'zero' on LHS
$0= 5h^{2}-30-20-45h$
$0= 5h^{2}-45h-50$ , divide each term by 5
$0= h^{2}-9h-10$ , factorise
$0=(h+1)(h-10)$ , equate each factor to zero
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We choose the positive value of $h$

Hence, the number of hours needed to break even is $h=10$

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3 years ago

Explain why 1,000 divided by 5 = 2,000 is incorrect

IRINA_888 [86]

Because division would only make a smaller number, unless of negitives

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3 years ago

Read 2 more answers

Write the equation of a line that is parallel to y = -x + 7

Gnoma [55]

Answer:

y= -x-3

Step-by-step explanation:

A line is parallel to another line if their slope is the same. In this case the slope is -1 (-x is basically -1x). So far we have y=-x+b (We dont know what b is yet). next we can insert the coordinate back into the equation y=-x+b where 1 is the y and -4 is the x.

We get...

y= -x+b

1= -(-4)+b

1=4+b

b=-3

Our final equation is y=-x-3

Hope this helped

4 0

3 years ago