40 - 4 = 36
average = 36/9 = 4
answer
average number of members who joined the math club is 4 per month
Answer:
x=10
Step-by-step explanation:
you know that 12x+5+6x-5=180 you can simplify the equation to 18x=180 and then you can divide both sides by 18 to get that x=10
This question is pretty much asking: Write a story that can be represented by the equation y=1.25x.
So, how about this one: Lily's mom tells Lily to clean up her toys. Lily puts toys away at a rate of one toy per every 1.25 seconds.
That's it, simple as that :P
(Sorry if it wasn't too helpful.)
Answer:
150 + 1.5d
Step-by-step explanation:
increase 120 by d%
d% = d/100
So, increasing 120 by d % means
120 + (d/100 * 120)
= 120 + 1.2d
Then increase this by 25%
= (120 + 1.2d) + 25/100(120 + 1.2d)
= 120 + 1.2d + (120+1.2d)/4
= 120 + 1.2d + 30 + 0.3d
= 120 + 30 + 1.2d + 0.3d
= 150 + 1.5d
Answer:
Cathie made 420 copies in all
Step-by-step explanation:
No. of pages in storybook = 12
No. of copies made per page = 35
Hence no. of copies made of 12 pages is given by product of no. of pages and no. of copies per page
Total no. of copies made = 35 x 12
= 420
