Anwser:
180/3=60
60/12=5
3x(12x5)=180
b=5
Step-by-step explanation:
Answer:
Multiply the bottom one by -4
Step-by-step explanation:
to cancel in a system of equations, there must be a negative and a positive of both variables. - times - equals +, so multiply -x by -4 to get 4x, thus cancelling -4x with 4x.
So, we have two equations. The first one is a/b = 2, and the other one is to find the value of 4b/a. In order to solve this, let's find the value of b/a. As you can observe, b/a is the reciprocal of a/b. Therefore, b/a is also the reciprocal of 2. This means that b/a = 1/2. Now, substituting this to the second equation, the answer would be
4b/a = 4(1/2) = 2
The answer is 2.
Answer:
160cm³
Step-by-step explanation:
square based means equal sides
therefore 4cm×4cm=16cm²
16cm²×10cm=160cm³
Answer:
9
Step-by-step explanation:
used a calculator
