Answer: Doubling the red marbles means that each 2 red marbles will be replaced by 4 red marbles. So after doubling the red marbles for each 3 blue marbles there will now be 4 red marbles, giving a new ratio of 3:4.
The question has a typo (It is 3 years older than 2/3 times Lily's age). I attached the correct question below.
Answer:
Lily is 24 years old
Explanation:
Assume that Lily's age is x and that Hilitary's age is y.
We are given that:
Hilitary's age is 3 years greater than 2/3 times Lily's age
This means that:
y = (2/3 x) + 3
Now, we are given that:
Hilitary's age is 19 years old.
This emans that : y = 19
Substitute with y = 19 in the above equation and solve for x as follows:
y = (2/3 x) + 3
19 = (2/3) x + 3
19 - 3 = (2/3) x
16 = (2/3) x
48 = 2x
x = 48/2
x = 24
Hope this helps :)
Fourteen is 28% of B) 50
Why, you ask? Let's see -
Let the unknown number be n, for 'number'.
Let's put the unknown n next to 28%
.28n% = 14
(Think, what times .28 equals 14? Look below to find out! ↓ )
Let's now do the opposite of the actual equation - divide the two known numbers by each other -
.28 ÷ 14 = 50
When in doubt, check your answer:
To check this, we would do the opposite - Multiplication
Multiply .28 by 50 to get 14 (At least you should get 14)
.28 × 50 DOES EQUAL 14! We were right! :D
↑ ↑ ↑ Hope this helps! :D
Answer:
koreannnn ayeee me toooo :D
Step-by-step explanation:
i don't really understand the question so ;-;
Answer:
I think it's 150
Step-by-step explanation:
(8+7) × 10 = 150