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3 years ago

How to make a negative mixed number into an improper fraction?

Mathematics

1 answer:

11Alexandr11 [23.1K]3 years ago

7 0

Forget about the minus sign until you're done, then slap it back on.

-1 1/2 = -(1 1/2) = -(3/2) = -3/2

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Pam jogged up the hill at 6 km/h and then jog down back down the hill at 10 km an hour how many kilometers did you travel at all

atroni [7]

Answer: you travelled 10 km

Step-by-step explanation:

Pam jogged up the hill at 6 km/h.

Let x represent the number of kilometers that you travelled by jogging up the hill or returning back.

Time = Distance/speed

Pam jogged up the hill at 6 km/h.

Time spent in jogging up the hill would be

x /6

She then jog back down the hill at 10 km an hour. Time spent in jogging down the hill would be

x /10

If the total jogging tie is 1 hour 20 minutes, converting to hours, it becomes 1 + 20/60 = 1.33

Therefore

x /6 + x/10 = 1.33

10x + 6x = 80

16x = 80

x = 80/16 = 5

Total distance travelled up and down the hill would b

5 × 2 = 10 km

4 0

4 years ago

Which of the folleing is a statistical question?

Romashka [77]

C is the correct answer
Hope it helps!

4 0

3 years ago

Need help in math and explain to me step by step

Rus_ich [418]

Answer:

$\left[\begin{array}{cc}x&y&-2&-9&0&-1&2&7&4&15\end{array}\right]$

Step-by-step explanation:

Given

$y = 4x - 1$

Required

Create a function table for inputs -2, 0, 2 and 4

When x = -2

$y = 4*-2 - 1 = -9$

When x = 0

$y = 4*0 - 1 = -1$

When x = 2

$y = 4*2 - 1 = 7$

When x = 4

$y = 4*4 - 1 = 15$

So, the table is:

$\left[\begin{array}{cc}x&y&-2&-9&0&-1&2&7&4&15\end{array}\right]$

7 0

3 years ago

During which interval was the bicyclist speed the greatest? I am not sure about my answer.

labwork [276]

You are correct because the elapsed time was the shortest
hope this helps!

6 0

3 years ago

Read 2 more answers

On a field trip, there are 5 adult chaperones for every group of 20 students. There are 150 people in total on the trip. What pe

denis23 [38]

Answer:

80% of the people on the trip are children.

Step-by-step explanation:

To determine the percentage of the people on the trip that are children,

First, we will determine how many of the people are children.

From the question,

There are 5 adult chaperones for every group of 20 students, that is, out of 25 people, 5 are adult chaperones and 20 are students.

From the question, there are 150 people in total in total.

Let the number of children be x

If there are 20 students (children) in 25 people

Then, there will be x children in 150 people

x = (150 × 20) / 25

x = 120

Hence, there are 120 children.

To determine the percentage of the people on the trip that are children,

we will divide the number of children by the total number of people and then multiply by 100%

Number of children = 120

Total number of people = 150

∴ The percentage of the people on the trip that are children is

(120/150) × 100% = 0.8 × 100% = 80%

Hence, 80% of the people on the trip are children.

7 0

3 years ago

Read 2 more answers