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4 years ago

Which equations represents that statement?

Mathematics

2 answers:

AnnyKZ [126]4 years ago

7 0

It’s A.) x - 3 = 25

lesantik [10]4 years ago

6 0

T is d because you have to add in order to get to 25 so +3=25 and22 +3=25

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When I pour my coffee it is 185 degrees Fahrenheit. As it sits on my desk it loses temperature at a rate of 3 degrees per minute

astraxan [27]

Answer:

I believe it's 185-3x I hope I'm right, sorry if I'm not

Step-by-step explanation:

8 0

3 years ago

The points (4,k) and (5,-8) fall on a line with a slope of -7. what is the value of k?

babunello [35]

Answer:

k= -1

Step-by-step explanation:

To find k, use the points and the m =-7 in the slope formula:

$m=\frac{y_2-y_1}{x_2-x_1}\\\\-7=\frac{-8-k}{5-4} \\\\-7 = \frac{-8-k}{1}\\\\-7=-8-k\\\\k = -8+7\\\\k=-1$

4 0

4 years ago

Solve by elimination:

LenKa [72]

Answer:

Ok, there's no solution because of the like term grouping

Step-by-step explanation:

For eg;2w+3x+4w will be equal to

6w+3x which is a like term grouping. So only if there are like terms, there will be a solution.

4 0

3 years ago

The Bailey family and the Howard family each used their sprinklers last summer. The water output rate for the Bailey family's sp

Nady [450]

Answer:

Running time of Bailey's family sprinkler = x = 20 hrs

Running time of Howard's family sprinkler = y = 35 hrs

Step-by-step explanation:

We will make equations of time and flow of each family's sprinkler.

1. Time equation will be:

Let x is the time of Bailey's family sprinkler

Let y is the time of Howard Family Sprinker

Thus equation from the given information is both sprinklers ran for 55 hours.

$x+y=55$ (eq:1)

2. Flow of water equation will be derived from the fact that if we multiply the flow of one sprinkler with its time it will give the total flow of water

thus: Flow of Bailey's family sprinkler = $x*20$

and Flow of Bailey's family sprinkler = $y*35$

Total flow is given = 1625

Therefor adding the two equations will give total flow equation

$(x*20) + (y*35) = 1625$

$20x+35y=1625$ (eq:2)

Now we have two equations and two variables x and y and we will use the substitution method to solve them.

Using equation one

$x+y=55$

$x=55-y$

Using value of x in second equation

$20x +35y = 1625$

Substituting value of x

$20(55-y)) + 35y = 1625\\1100-20y+35y=1625\\1100+35y-20y=1625\\15y=1625-1100\\15y=525\\y=525/15\\y=35$

Now putting the value of y in equation # 1

$x+y=55\\x+35=55\\x=55-35\\x=20$

Thus the answers are:

Running time of Bailey's family sprinkler = x = 20 hrs

Running time of Howard's family sprinkler = y = 35 hrs

8 0

3 years ago

Read 2 more answers

Giving brainiest to the first right answer

pychu [463]

Step-by-step explanation:

2 options

now as you told make me brainlist

4 0

3 years ago