Two fitness clubs are asding new members. Fitness club A cutrently has 450 memebers and adds 15 nee memeners each month. Fitness club B currently has 400 members amd adds 25 new members each month. After how many months will fitness club A and B have the samr number of members?

It will take 5 months for the two fitness clubs to have the same number of members

Step-by-step explanation:

Let the number of months it takes fitness club A  and B to have the same number be = x

For the two clubs to have the same number in x months, that means we can set up an equation as follows

450 +15x = 400 + 25x

Grouping like terms

450 - 400 = 25x -15x

50 = 10x

x= 5

Therefore, it will take 5 months for the two fitness clubs to have the same number of members

i leave the calculator work to you.

7. diameter 4 miles, circumference 4π miles

8. radius 0.2 miles, circumference 0.4π miles

[this is a bad problem because the actual radius of a car on the track is less than 0.2 miles so the answer is less than 0.4π miles]

9. radius 6 feet, circumference 12π feet

10. diameter 14 cm, circumference 14π cm

11. diameter 4.8 feet, circumference 4.8π feet

36 girls

step-by-step explanation:

the 48 boys is 4 parts of the ratio

divide 48 by 4 to obtain one part of the ratio

= 12 ← 1 part of the ratio

3 parts = 3 × 12 = 36 ← number of girls