When y=5 and z=4, the value 4y+9z is 56.
To find the value of 4y+9z when y=5 and z=4, let's substitute these values into the expression:
4y+9z=4×5+9×4
Now, let's solve this:
4×5=20
9×4=36
4y+9z=20+36=56
Therefore, when y=5 and z=4, the value 4y+9z is 56.
Question
What is the value of the expression below when y=5y=5 and z=4z=4?
4y+9z
4y+9z