Answer:
40
Step-by-step explanation: I just guesstimated a number and divided 36 by 40 to get .9 which means 90%
Answer:
4/3 mile/hour
Step-by-step explanation:
(1/3 mile) / (1/4 hour)
= (1/3 ÷ 1/4) mile/hour
= (1/3 · 4/1) mile/hour
= 4/3 mile/hour
Answer:
Step-by-step explanation:
Well we can use the exponential identity:
The base must be the same for this to work.
So let's combine like bases:
We can simplify b^2 * b^3 using this identity to get: b^(2+3) = b^5
This gives us the equation:
But to take a deeper look as to why this identity holds, let's represent b^2 and b^3 by what it really means: , so this is really just: which can be simplified as an exponent: , hopefully this helps you understand intuitively why this identity makes sense.
So using this identity, we can simplify j^2 * j^4 to j^6
This gives us the equation:
Answer:
x = 1.125 AKA x = 1 1/8 AKA x = 9/8
Step-by-step explanation:
CB to ED = 1 : 9
Scale Factor = 1/9
-> cross multiply
9x = x + 9
-x -x
8x = 9
x = 9/8
Answer:
a and c
Step-by-step explanation:
The volume (V) of a cuboid is
V = lwh ( l is length, w is width, h is height )
The volume is given as 210 cm³
Check each of the dimensions given to determine which give the correct volume
a
V = 15 × 2 × 7 = 210 ← correct volume
b
V = 14 × 3 × 7 = 294 ← incorrect volume
c
V = 7 × 3 × 10 = 210 ← correct volume
Hence a and c could be the dimensions of the box