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3 years ago

Please solve for me and show step by step answer. -2(4a+1)-(a+4)= -51

1 answer:

3 0

First distribute
-8a-2-(a+4)=-51
Then distribute the -
-8a-1-a-4=-51
Then subtract the numbers
-8a-5-a=-51
Combine like terms
-9a-5=-51
Add 5 to both sides
-9a=-46
Divide by -9
a=46/9 write in fraction from
If answer is negative remove by cancel out like terms

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a family of five recently replaced its 5-gallon-per-minute showerheads with water-saving 2-gallon per minute showerheads. each m

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The entire family (5 people) save 120 gallons per day.

Subtraction:

Subtraction means we have to find the difference of the numbers.

Given,

A family of five recently replaced its 5-gallon-per-minute showerheads with water-saving 2-gallon per minute showerheads.

Each member of the family averages 8 minutes in the shower per day.

Here we need to find the entire family savings per day.

According to the question,

The total bath time for the whole family is,

=> 8 x 5 = 40

So for one day,

If the showerheads cost 5 gallon per minute, then the cost for the family is,

=> 40 x 5 = 200

If the showerheads cost 2 gallon per minute, then the cost for the family is,

=> 40 x 2 = 80

So, the savings is,

=> 200 - 80

=> 120

So, they save 120 gallons per day.

To know more about Subtraction here.

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2 years ago

What is the solution to the system for?

Sergeu [11.5K]

Answer:

x = 5 - 3y and y = - 7/3 + 5x/3

Step-by-step explanation:

uh -

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3 years ago

Paws at play made a total of $1,234 grooming 22 dogs. Paws at play charges $43 to groom each small dog and $75 for each large do

vovikov84 [41]

Step-by-step explanation:

We are asked to write a system of equations using our given information.

Let x be number of small dogs and y be number of large dogs.

We have been given that paws at play made a total of $1,234 grooming 22 dogs, which means that number of small dogs and large dogs is 22. We can represent this information as:

$x+y=22...(1)$

We have been given that paws at play charges $43 to groom each small dog and $75 for each large dog. So the total grooming charges for grooming x small and y large dogs will be 43x+75y, that is equal to total charges for grooming $1234.

We can represent this information as:

$43x+75y=1234...(2)$

Therefore, our desired system of equations is:

$x+y=22...(1)$

$43x+75y=1234...(2)$

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3 years ago

Twenty people are going by van to a movie. Each van seats 8 people. How many vans are needed to take everyone?

GarryVolchara [31]

Answer:

Step-by-step explanation:

20/8=2.5

so 3 vans

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4 years ago

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Please help!<br>What is the answer to this question?<br>

nordsb [41]

Answer:

Step-by-step explanation:

3x - 60 = x + 50

3x = x + 50 + 60

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3 years ago

Read 2 more answers

Please solve for me and show step by step answer. -2(4a+1)-(a+4)= -51​

Please solve for me and show step by step answer. -2(4a+1)-(a+4)= -51