1. 30 + 30
2. 20 + 40
3. 12 * 5
4. 300/5
(Bonus)
5. 10 + 50
9514 1404 393
Answer:
3.6 inches
Step-by-step explanation:
A suitable proportion is ...
map inches / ground feet = 1.5/2.5 = x/6
Multiplying by 6, we find ...
x = 6(1.5/2.5) = 3.6
3.6 inches on the map would represent 6 feet on the ground.
There are many ways you can go. I'm going to start out factoring the whole thing.
(x+9)(x-8) = 0
seperate these into two different equations.
x+9 = 0 and x-8 = 0
x= -9 x=8
Make sure you check it by substituting. Sometimes you might have to reject an answer. In this case you don't. Therefore, 8 and -9 are your roots!
Answer:
9x
Step-by-step explanation:
X is an unknown variable so just leave x as it is
Because the (2x) and the (7x) are being multiplied together they are almost seen as their own category of things
Think about having two bananas in a bowl. I just threw in seven more to get a total of nine bananas in the bowl.
It's the same thing when you have a variable right next to a number! add them together as if they are alike terms.
2+7=9 therefore your answer should be 9x
The equation would be
314 = 0.4(x) + 250
Would you like me to explain?
