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2 years ago

The least common denominator of 7/12, 1/3, and 3/4 is

Mathematics

1 answer:

nikdorinn [45]2 years ago

5 0

Answer:

12.

Step-by-step explanation:

3, 4, and 12 all divide into 12 .

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Dina and Masha started out on a 10 km bike path at the same time. When Dina reached the end of the 10 km, Masha still had 2 km t

german

Answer:

4 km/h

Step-by-step explanation:

We are told that Dina and Masha started out on a 10 km bike path at the same time.

Dina's biking speed is 5 km/h.

Let us find taken by Dina to cover 10 kn distance.

$\text{Time}=\frac{\text{Distance}}{\text{Speed}}$

$\text{Time taken by Dina to cover 10 km}=\frac{10km}{5\frac{km}{hr}}$

$\text{Time taken by Dina to cover 10 km}=\frac{10km}{5}\times \frac{hr}{km}}$

$\text{Time taken by Dina to cover 10 km}=2hr$

Therefore, Dina took 2 hours to complete 10 km.

Since both started at the same time, therefore, Masha also took 2 hours to complete 2 km less than Dina.

Let us find distance covered by Masha.

$\text{Distance covered by Masha}=10\text{ km}-2\text{ km}=8\text{ km}$

Now let us find Masha's biking speed.

$\text{Speed}=\frac{\text{Distance}}{\text{Time}}$

$\text{Masha's biking speed}=\frac{8\text{ km}}{2\text{ hour}}$

$\text{Masha's biking speed}=4\frac{\text{ km}}{\text{ hour}}$

Therefore, Masha's biking speed is 4 km per hour.

4 0

4 years ago

write the expression for "A water tank contains gallons of water when it begins to drain at a rate gallons per minute"

agasfer [191]

Step-by-step explanation:

$lets \: assume \: the \: water \: gallon \: has \: 1000litres \\$

$1000 = 0.25x$

0.25 Is the rate and x is how many minutes

4 0

3 years ago

Complete the table to investigate dilations of exponential functions. A 4-column table has 5 rows. The first column is labeled x

morpeh [17]

Answer:

a= 1

b= 3

c=1

d= 2

e=6

f=8

7 0

3 years ago

The product of 4x and 0 is: 4x 4 0

ki77a [65]

Answer: 0

Step-by-step explanation:

Simply the answer is 0 because anything multiplied by 0 will result in 0

4x(0) = 0 

7 0

3 years ago

Dave took 8/9 of his savings and decided to invest it. With his investments, 2/3 of it will go into the Canadian stock market. A

baherus [9]

Answer:

Dave invested approximately $29,629.63 into Oil companies.

Step-by-step explanation:

8/9 (100,000) = i

i= $88,888.89

2/3(88,888.89)=c

c = $29,259.26

1/2(29,259.26)=o

o= $29,629.63

3 0

3 years ago