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3 years ago

Change the subject of a formula to S

Mathematics

1 answer:

densk [106]3 years ago

5 0

You want to "solve" this formula for s.

7s+4
If t = ----------- , then 2t = 7s + 4. Subtract 4 from both sides. Then
2
2t - 4
7s = 2t - 4, and s = -------------- (answer)
7

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My sister can walk from school to home in 35 minutes. I can walk from school to home in 20 minutes. But today I stayed for some

Verizon [17]

Answer:

you both will reach the home at the same time.

I) You can catch your sister.

ii) Reason: you both will reach home at the same time.

Step-by-step explanation:

Let "d" be distance from school to home.

Let's find the speed of you and your sister.

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

Your speed = $\frac{d}{20}$

Your sister's speed = $\frac{d}{35}$

Today, You stayed for some extra help by the time your sister covered $\frac{3}{7}$ of the way home.

Remaining distance to reach the home = $1 - \frac{3}{7}d = \frac{7-3}{7}d = \frac{4}{7}d$

Now let's find the time to be taken your sister to reach the home.

Time = $\frac{distance}{speed}$

= $\frac{\frac{4}{7}d }{\frac{1}{35} d} = \frac{4}{7} *\frac{35}{1} = 20$

So, your sister will take 20 minutes to get home by the time your start.

We know that it takes you 20 minutes to reach your home.

Therefore, you both will reach the home at the same time.

I) You can catch your sister.

ii) Reason: you both will reach home at the same time.

7 0

3 years ago

If the Volume of a Cylinder is 287 and the radius is 5, what is the height "h"?

Sidana [21]

Answer:

3.7 is the height

Step-by-step explanation:

so the volume is 287 radius is 5 . The formula Volume = base area x height which we come to equate 287 =3.142x5x5 to get 287 divides by 78.55 answers round off to the nearest tenths 3.653 round off 3.7

8 0

3 years ago

What is the value of x

ELEN [110]

Its 75 because you at the 2 variables and then subtract them by 180 so 180-105=75

4 0

3 years ago

Read 2 more answers

A cyclist rides his bike at a rate of 10 kilometers per hour. What is this rate in miles per hour. How many miles will the cycli

poizon [28]

Answer:

10 km/ hour = 6.25 miles/ hour

Step-by-step explanation:

cyclist travel in 5 hours = 6.25 x 5 = 31.25 miles

8 0

3 years ago

Answer please with the work thank you. Who ever answers geta the brainlest answer!

vodomira [7]

Answer:

Step-by-step explanation:

cassie is going up 3 and then down 5

8 + 3=11

11-5= 6

8 0

3 years ago