If we go back to the defenition of logs, we can find this solution quickly.
What you're saying when you say ㏒₂(5x+7) = 5 is that
2⁵ = 5x+7
So
32 = 5x+7
25 = 5x
x = 5
Answer:
hope this helps
Step-by-step explanation:
Strawberry = 14
blueberry = 14
cherry = 7
chocolate = 7
apple = 14
Answer:
WHAT THE HELL IS THIS!?!?!
Step-by-step explanation:
Answer: 20 feet
Step-by-step explanation:
This represents a right angled triangle with the length of the slide being the hypotenuse, the height of the ladder being the height of the triangle and the distance from the base of the ladder being the length.
Solve with Pythagoras rule:
c² = a² + b²
c = hypotenuse
a= length
b = height
29² = 21² + b²
841 = 441 + b²
b² = 841 - 441
b² = 400
b = √400
b = 20 feet
Let x = the unknown number
five more than a number = twice the number
x + 5 = 2x
5 = 2x - x
5 = x
( Balance method is used to solve )
substitution
x + 5 = 2x
5 + 5 = 2 x 5
10 = 10
answer : the unknown number is 5
