Jim drove the 120 miles to Grandmother's house in 3 hours. He increased his speed by10 miles per hour on the way home. How long did it take him to drive home?

Answers

Answer 1

Answer: Ok so basically you want for this specific problem to set up a proportion. So 120 mi/3hours=x/10 miles. X is the unknown variable we are solving for so pay close attention. So now I am going to multiply 120 times 10 which is 1200 now that divided by 3 is 400. Hoped this helped !!!

Answer 2

Answer: Well if he drove there in 3 hour and went 120 miles then it would have took him 2 hours to get home

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Ramp LearningConsider the expression 2(−2y+8).

Identify the equivalent expression below that demonstrates distributive property.

Answers

2(-2y+8)
-4y+16
Therefore the answer is:
-4y+16

a camera droppeed from a boat descends 9 meters every minute. What will be the change in location of the camera afterb5 minutes?

Answers

Well, if it descends 9 meters every minute, you would multiply 9 by the number of minutes in question. Since you want to know its location after 5 minutes, you would multiply 9 by 5.

9 x 5 = 45 so 45 meters after 5 minutes

Hope this helps :)

The first thing to do is to turn this into an equation:
If minutes= m and distance = d
d = 9m

Since you want to know how far the camera goes after 5 minutes:
m = 5
d = 9 X 5
d = 45

After 5 minutes, the camera has dropped 45 meters.

Ishaan is 3 times as old as Christopher and is also 14 years older than Christopher.how old is ishann?

Answers

The correct answer is: 21

Explanation:
Let's first assume few variables!

x = Ishann's age (in years)
y = Christopher's age (in years)

1. Ishann is 3 times as old as Christopher can be represented mathematically as:
x = 3y ---- (1)

2. Ishann is 14 years older than Christopher can be represented mathematically as:
x = y + 14 ---- (2)

Get the value of y from Equation (1) and plug it in Equation (2):

(2) => x = (x/3) + 14
3x = x + 42
2x = 42
x = 21

Hence Ishann is 21 years old!

Answer:

the answer in khan academy is 7

Step-by-step explanation:

Use the graph of the exponential growth function f(x) = a(2x) to determine which statement is true. f(0) = 2 when a = . f(0) = 3 when a = 3. f(1) = 9 when a = 9.

Answers

Answer:

Step-by-step explanation:

f(0)=3 when a =3

hope it helps

If the function is exponential, then (2x) is the exponent.

f(x) = a^(2x)

Take it from here.

6x2−17xy+12y2 and please show work!!

Answers

Answer:

12+7y

Step-by-step explanation:

Which statement describes the graph?

Answers

Answer : D

From the given graph , we can see that

The graph crosses the y axis at 7

So y axis is (0,7)

The graph is increasing at first and reaches (-2,8) and then start decreasing

The graph start increasing at x=-10 and goes on increasing till x= -2

then the graph start decreasing at x=-2 and goes in decreasing till x= 10

The graph crosses the y axis at (0,7), increasing from x=-10 to x=-2 and decreasing from x=-2 to x=10

Answer D is correct

Answer is d

Step-by-step explanation:

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