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rusak2 [61]
3 years ago
7

What is the answer to -7d-22=4d?

Mathematics
1 answer:
Juliette [100K]3 years ago
4 0
First add 7d to both sides:
-22 = 11d
Now divide by 11 both sides
-2 = d

You can work on either side of the equation, I used the right side for the variables because it was easier to add to positive numbers than dealing with negative numbers on the left side:
 -7d -4d = 22
-11d =22
d = -2 

either way you get the same answer :)
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The point (1, 4) is translated so it ends on the coordinates (-2, 2). Which of the following describes the translation?
Rom4ik [11]

Answer:

The first answer choice is the correct one.

Step-by-step explanation:

Going from (1, 4) and ending up at (-2, 2), we see that the original point is now 3 units to the left of its starting position, and 2 units down.

Clarification:  from x = 1 to x = -2 is 3 units (to the left), and

                       from y = 4 to y = 2 is 2 units (down)

The first answer choice is the correct one.

7 0
3 years ago
What is the sum or difference of 7/8 - 3/8 and the simplest form of it.
xxTIMURxx [149]
The answer will be 4/8 but the simplest form is 1/2
5 0
3 years ago
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A bee flies at 15 ft./s directly into a flower bed from a time the beast stays at the flower bed for 12 minutes and then flies d
Zinaida [17]

A) The equation that we need to solve is:

(12ft/s)*(- d/(15ft/s) + 300s) = d

B) The distance to the hive is d = 2000ft.

<h3 /><h3>What equation can you use to find the distance of the flower bed from the hive?</h3>

We know that the bee's speed is 15 ft/s from the hive to the flower bed.

Then stays 12 minutes at the flower bed.

Then returns to the hive with a speed of 12ft/s.

The total time of the journey is 17 minutes, discounting the 12 minutes that the bee was in the flower bed, the travel only took 5 minutes.

Now, if the distance between the hive and the flower bed is d, t₁ as the time that the bee needs to go from the hive to the flower bed, and t₂ as the time in which the bee goes from the flower bed to the hive, we can write the system of equations:

t₂ + t₁ = 5min

(15ft/s)*t₁ = d

(12ft/s)*t₂ = d

With that system of equations, we can find the value of d, which is what we want to get.

Isolating t₂ in the first equation we get:

t₂ = - t₁ + 5min

Now we can replace that in the third equation:

(15ft/s)*t₁ = d

(12ft/s)*(- t₁ + 5min) = d

In the first equation we can isolate t₁:

t₁ = d/(15ft/s)

And replace that in the remaining equation:

(12ft/s)*(- d/(15ft/s) + 5min) = d

5 min = 5*60s = 300s

(12ft/s)*(- d/(15ft/s) + 300s) = d

This is the equation we need to solve to find the value of d.

-(12/15)*d + 3600ft = d

3600ft = d + (12/15)*d = (1 + 12/15)*d = (27/15)*d

(15/27)*3600ft = d = 2000 ft

We conclude that the distance to the hive is 2000ft.

If you want to learn more about systems of equations:

brainly.com/question/13729904

#SPJ1

8 0
1 year ago
Determine the domain of each piece. Domain of piece 1:[ ) Domain of piece 2: [ ) Domain of piece 3
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2 years ago
Mini made a recipe that yields 4 1/2 cups if each serving is 1/2 cup which expression will help many determine the number of ser
Black_prince [1.1K]

You have to divide the total about of cups by the serving size:

4 1/2 divided by 1/2 and you get the answer.

4 1/2 converted into an improper fraction is 9/2.

9/2 divided by 1/2 = 9

8 0
3 years ago
Read 2 more answers
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