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vladimir1956 [14]
3 years ago
10

Please Help ASAP

Mathematics
1 answer:
Neko [114]3 years ago
8 0
Multiply the A by -3 this will cause d to become -3d so when the two equations are added 3d and -3d will cancel off.
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Madison spent 3 times as long on her social project as she did on her other project. If she spent a total of 8 hours on he proje
deff fn [24]

Answer:

6 hours

Step-by-step explanation:

Suppose Madison spent x hours on her social project,

then the number of hours spent on other project will be 1/3 of x=x/3

Total hours spend on all projects will be the addition of hours spent on social project and hour spent on other project, i.e

x + x/3 = 4x/3

It si given that this is 8 hours, therefore

4x/3=8

Multiplying both sides by 3:

4x=24

Dividing across board by 4:

x= 6 hours

5 0
3 years ago
A car is traveling on a highway. The distance (in miles) from its destination and the time (in hours) is given by the equation d
blondinia [14]

Answer:

d–intercept is simply the value of t when d equals zero. Which this case is when he reaches it his destination.

3 0
3 years ago
A rain barrel is full of water and used to water the garden. The rain barrel loses water at the rate 2.5 gallons of water per mi
soldier1979 [14.2K]
Answer: <span>y - 37.5 = 2.5 ( x - 7)

Explanation:

1) The point-slope form is has this form:

 y - y1 = m (x - x1)

Where m is the slope or rate of change and x1, y1 are the coordinates of the point.

2) you are told that the the rate of change of water (m) is 2.5

m = 2.5

3) The point is given by that after 7 min the rain barrel contains 37.5 gallons. This is:

x1 = 7
y1 = 37.5

</span>4) Replace those value in the point-slope model:

y - 37.5 = 2.5 ( x - 7)

That is the point-slope model or equation.

4 0
3 years ago
What is x multipied by -x
Alik [6]
The result of x*(-x)=-x^2

7 0
3 years ago
Read 2 more answers
Fill in the missing values to make the equations true .
Marysya12 [62]

Answer:

a) 15

b) 9

c) 2

Step-by-step explanation:

im try it by using trial and error by calculator

3 0
3 years ago
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