Answer:
The base is 4cm and the height is 5cm.
Step-by-step explanation:
This is a solve the system question. Call H the height of the triangle and B the base. The question tells us:
and
Sub the first equation into the second (as H is already isolated). You will end up with a quadratic equation - solve that any way you wish (e.g. quadratic formula). I've provided the factored form below which shows you the roots:
In this question, we take B=4. You can't have a negative side length so the other answer is eliminated. Now sub the value for B into either of the original equations. I'll use the first, again because H is already isolated:
Dividing with a 2 digit divisor is simple...
for example...
25/125
25 goes into 125, five times
25x5=125
5 would be the answer.
its the same thing as dividing with a one digit divisor. its just two digits instead.
hope this helps
Answer:
25%
Step-by-step explanation:
Given that,
The cost price of a cow, CP = $200
Gain = $50
We need to find the gain percentage of the cost price.
SP = CP + gain
= 50 + 200
= $250
So, the gain percent is 25%.
Answer:
21
Step-by-step explanation:
21 should be added in 123 to be a perfect square,i.e,
12^2=144
144-123
21