Answer: 3 Y=3
Step-by-step explanation:
Y×3=9
3×3=9
You can also check this by rearranging it and dividing 9 by 3.
9÷3=3.
This works for any similar problem.
Example:
Y×4=12 Y=? Y=3
Rearrange it and divide 12 by 4.
12÷4=Y
12÷4=3
So Y×4=12 because 3×4=12
Hope this helps!
Answer:
Step-by-step explanation:
So first we notice that the traingles are similar which makes my work much easier.
27:42 can be simplified to 9:14.
That means x is 28
And sharks to dolphins is 12.
That means the smaller triangle is 27 18 12 and the bigger triangle is 42 28 and x. Try and do it yourself if you can't just comment and I'll help you :)
A = pi(r)^2
diameter is 18in, so radius is 9in
= pi(9)^2
A = 254.469 (round is needed)
He traveled 2080 miles after 4 hours. He covered 3640 miles in 7 hours with a constant speed, so we can calculate the speed: 3640/7=520 miles/hour. After 4 hours, he traveled 520*4=2080 miles.
Answer:
Step-by-step explanation:
We have to write 243 as a power of some number.
So, if we factorize 243 we get,
243 = 3 × 3 × 3 × 3 × 3
Therefore, we can write 243 as a power of 3.
No other number can be written in powers of 243 because it do not contain any other factor than 3.
Hence, 243 can be written as :
