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noname [10]
3 years ago
15

A car travels at an average speed of 68 miles per hour. how long does it take to travel 306 miles?

Mathematics
2 answers:
EleoNora [17]3 years ago
7 0
306 / 68 = 4.5
answer: 4.5 hours
gtnhenbr [62]3 years ago
7 0

<span>Convert the hours and an unknown number of minutes to a fraction. For example, 4 hours and 30 minutes = 4 hours + 30 minutes / 60 minutes/hr = 4.5 hours </span>

<span>Distance = 68 mile/hr * 4.5 hr</span>
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What is the equation and soultion to x times 3 plus 4 equals 16
Zielflug [23.3K]

Hello!

Let's write this as an equation below.

3x+4=16

We subtract 4 from both sides.

3x=12

Divide both sides by 3

x=4

I hope this helps!

8 0
3 years ago
How many pages will you have read after the 6 nights
Gnom [1K]

Answer:

168 pages

Step-by-step explanation:

each night you read 28 pages, so 6 nights you have to read for 28x6=168 pages.

6 0
2 years ago
A 2 by 3 rectangle contains 8 squares. A 3 by 4 rectangle contains 20 squares. A 4 by 6 rectangle contains 50 squares. What size
scZoUnD [109]

Answer:

The rectangles that have exactly 100 squares are 1 by 100  4 by 11 and 5 by 8

Step-by-step explanation:

The given parameters are;

A 2 by 3 rectangle contains 8 squares

A 3 by 4 rectangle contains 20 squares

A 4 by 6 rectangle contains 50 squares  

We note that the number of squares varies proportionately to the increase in the dimension of the rectangle, that is we have;

2 by  3 rectangle contains 8 squares

3 by 4 rectangle contains 20 squares increase by 12 = 3 × 4

4 by 5 rectangle contains 40 squares increase by 20 = 4 × 5

The number of squares formed can therefore be arranged in a matrix as follows(please see attached matrix);

Column,     1,       2,     3,      4,       5,     6,        7,       8,         9,           10,         11

Row

1

2

3

4

5

6

7

8

9

10

11

It will be observed that after reaching a point where the row and column are equal, (x, x) the rate of increase in the number of squares become constant and equal to x × ((x - 1) × 0.5) + 1) = x × (x + 1)/2

From the matrix, the rectangles that have exactly 100 squares are 1 by 100  4 by 11 and 5 by 8 and there are no more as presented in the attached matrix, the number of squares formed keeps increasing for each column and row added.

4 0
3 years ago
The dimensions of a rectangle are 3 cm by 5
aleksley [76]
9 or 12 I think Possibly 18
6 0
3 years ago
Read 2 more answers
HELPP ASAP PLS<br> what is m<br> A) 120°<br> B) 75°<br> C) 80°<br> D) 85°
MariettaO [177]
The straight angle ;
60 + x = 180
So x = 120

Please give me a brainliest answer
8 0
2 years ago
Read 2 more answers
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