All categories

3 years ago

A car travels 120 miles in 2.5 hours (with a constant speed). What is the car's

Mathematics

2 answers:

Stells [14]3 years ago

7 0

Answer:

48 miles per hour

Step-by-step explanation:

to find the average speed, the equation is speed = distance ÷ time

120 ÷ 2.5 = 48 miles per hour

kipiarov [429]3 years ago

5 0

Answer:

Step-by-step explanation:

120 divided by 2.5 = 40

You might be interested in

16 2/5 - 9 2/3 = show work

fgiga [73]

Answer:

Conversion a mixed number 16 3

to a improper fraction: 16 3/8 = 16 3

= 16 · 8 + 3

= 128 + 3

= 131

To find new numerator:

a) Multiply the whole number 16 by the denominator 8. Whole number 16 equally 16 * 8

= 128

b) Add the answer from previous step 128 to the numerator 3. New numerator is 128 + 3 = 131

c) Write previous answer (new numerator 131) over the denominator 8.

Sixteen and three eighths is one hundred thirty-one eighths

Conversion a mixed number 9 5

to a improper fraction: 9 5/8 = 9 5

= 9 · 8 + 5

= 72 + 5

= 77

To find new numerator:

a) Multiply the whole number 9 by the denominator 8. Whole number 9 equally 9 * 8

= 72

b) Add the answer from previous step 72 to the numerator 5. New numerator is 72 + 5 = 77

c) Write previous answer (new numerator 77) over the denominator 8.

Nine and five eighths is seventy-seven eighths

Subtract: 131

- 77

= 131 - 77

= 54

= 2 · 27

2 · 4

= 27

The common denominator you can calculate as the least common multiple of the both denominators - LCM(8, 8) = 8. Cancelling by a common factor of 2 gives 27

In words - one hundred thirty-one eighths minus seventy-seven eighths = twenty-seven quarters.

Step-by-step explanation:

3 0

3 years ago

Write the slope intercept form equation from the graph.

Len [333]

For this case we have that by definition, the equation of a line in the slope-intersection form is given by:

$y = mx + b$

Where:

m: It's the slope

b: It is the cut-off point with the y axis

According to the image, the line goes through the following points:

$(x_ {1}, y_ {1}): (2,1)\\(x_ {2}, y_ {2}): (0,4)$

So, the slope is:

$m = \frac {y_ {2} -y_ {1}} {x_ {2} -x_ {1}} = \frac {4-1} {0-2} = \frac {3} {- 2} = - \frac {3} {2}$

Thus, the equation is of the form:

$y = - \frac {3} {2} x + b$

We substitute a point and find "b":

$4 = -\frac {3} {2} (0) + b\\4 = b$

Finally, the equation is:

$y = - \frac {3} {2} x + 4$

Answer:

$y = - \frac {3} {2} x + 4$

8 0

4 years ago

PLEASE HELPPPP Madie is ordering pizza. She has 4 sizes to choose from Xtra Small, Small, Medium and Large. If Madie randomly ch

Lena [83]

Answer:

1/4

Step-by-step explanation:

The answer is 1/4 because she has 4 choices and each size has a 25 percent chance of getting picked.

6 0

3 years ago

Read 2 more answers

On Tuesday, Hayley only has 15 cups of flour and 9 eggs, but she has more than enough butter and sugar. Which system of linear i

BabaBlast [244]

Missing part of the question

Hayley bakes zucchini bread and banana bread. Some ingredients Hayley uses for each type of bread are shown in the tables

Zucchini Bread

2 eggs 2 cups of flour 1.5 cups of sugar 0.5 stick of butter

Banana Bread

1 egg 3 cups of flour 2 cups of sugar 0.25 stick of butter

Answer:

$2z + b \le 9$

$2z + 3b \le 15$

Step-by-step explanation:

Given

$Flour = 15$

$Egg =9$

Since there are enough of other ingredients, we will only consider the amount of eggs and cups of flour.

So, we have:

Zucchini Bread

$Egg = 2$

$Flour = 2$

Banana Bread

$Egg = 1$

$Flour = 3$

For the eggs

The ratio of eggs to use in the Zucchini bread to Banana bread is:

$Egg = 2$ (z) : $Egg = 1$ (b)

This gives:

$2z + 1b$

The total number of eggs cannot exceed 9.

So, the inequality is:

$2z + 1b \le 9$

$2z + b \le 9$

For the flours

The ratio of flours to use in the Zucchini bread to Banana bread is:

$Flour = 2$ (z) : $Flour = 3$ (b)

This gives:

$2z + 3b$

The total cups of flours cannot exceed 15.

So, the inequality is:

$2z + 3b \le 15$

Hence:

The system of inequalities is:

$2z + b \le 9$

$2z + 3b \le 15$

7 0

3 years ago

In 1999 the student enrollment at a college was 13% more than it was in 1998 if the enrollment was 12,204 in 2000 which was 8% m

hram777 [196]

Answer:

10,000

Step-by-step explanation:

5 0

3 years ago