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3 years ago

I will write to explain how to find the rate from the problem provided and write in d=rt.

2 answers:

8 0

Rate of change per hour is 15 but per 2 hour is 30 although your form is not a form I know so if you can find the forms name I can put it in form

Nat2105 [25]3 years ago

7 0

Rate of change is 15

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Use any method to solve the system of equations. 3x + 4y = 12 2x + 3y = 10 Solve for y.

Scilla [17]

(x , y) = (-4 , 6) There you go

7 0

2 years ago

Mark can remember only the first 4 digits of his friend's phone number. He also knows that the number has 7 digits and that the

denis-greek [22]

Answer:

19800 seconds, or 330 minutes, or 5 hours + 30 minutes

Step-by-step explanation:

Number Permutations

We know the phone number has 7 digits, 4 of which are known by Mark. This leaves him 3 digits to guess with. We also know the last one is not zero. The number can be represented as

XXY

Where X can be any digit from 0 to 9 and Y can be any digit from 1 to 9. The first two can be combined in 10x10 ways, and the last one can be of 9 ways, this gives us 10x10x9 = 900 possible permutations.

If each possible number takes him 22 seconds, every possibility will need

22x900=19800 seconds, or 330 minutes, or 5 hours + 30 minutes

3 0

2 years ago

victor want to make a book tower of height 48 cm .If the thickness of book is 12 mm ,how many books will he need to make the des

lions [1.4K]

Answer:

Step-by-step explanation:

1. Change 48 cm to mm, which will give you 480 mm

2. Divide 480 mm by 12 mm, that will give you 40

Therefore, Victor needs 40 books to make his desired height.

6 0

2 years ago

Math question please help ! and say why you chose that answer.

aev [14]

your answer is either 7.6 or 10.0

4 0

2 years ago

Read 2 more answers

HD Straight line graphs

Taya2010 [7]

Answer:

The equation of the sraight line 3x- y+ 6 =0

Step-by-step explanation:

Explanation:-

Given that the gradient of the function

|gradf| = 3 and point (-1,3)

Given that the slope of the line

m = 3

The equation of the straight line passing through the point(-1,3) and slope m =3

$y -y_{1} = m(x-x_{1} )$

y-3 = 3(x-(-1))

y-3 = 3x+3

3x +3-y+3=0

3x- y+ 6 =0

Final answer:-

The equation of the sraight line 3x- y+ 6 =0

5 0

2 years ago