How do I solve this? Please show steps if you can

Answers

Answer 1

Answer: 2r = 5s/2 - s/4
2r = 10s-s /4 [ took LCM of 4 & 2 ]
2r = 9s/4
9s = 2r*4
s = 8r/9

In short, your answer would be 8r/9

hope this helps!

Answer 2

Answer: the answer is r=9/8s

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Roxanne has 1/2 as many beads as Sherie. The number of beads Sherie has is 4/5 that of Marcos. Marcos has 165 beads. How many more beads does Marcos have than Roxanne.

Answers

Sherie: (165×4)÷5 = 132
Roxanne has 1/2 of 132 = 66
Difference between Marcos and Roxanne:
165-66 = 99

Find 4/5 of 165

Find 1/2 of that this equals Rixanne's amount and then u minus roxanne's from marco's

when rolling a single number cube,what are the odds,in simplest form , in favor of rolling a 4 or a 5

Answers

there are six sides to a cube 1 2 3 4 5 6
the chances of getting less than or more than 3 are halved so for every 2 rolls there is 1 chance are you going to hit less than 3
so the answer is 2:1

Answer: she/he is right

the answer is 2:1

Step-by-step explanation:

What is a related equation to this equation?18/a = 7

A. a = 7/18

B. a + 7 =18

C. a = 18/7

D. a = 18 * 7

Answers

Simple.....

you have $(18)/(a) =7$

to find what a is....simplify/multiply both sides....

$a* (18)/(a) =7*a$

simplifying it too....

18=7a

$(18)/(7) = (7a)/(7)$

$(18)/(7) =a$

Thus, your answer, C.

PLEASE HELP!!!!!!!!!!!!!!

Answers

the answer is the top answer

sammy and david were selling water bottles to raise money for new football uniforms.Sammy sold 5 water bottles for every 3 water bottles david sold.together they sold 160 water bottles.how many did each sell?