Hello from MrBillDoesMath!
Answer:
1.5, 1.6
Discussion:
The question is how to interpret 5/10 * 3. Both multiplication and division have the same precedence but we proceed from left to right (doing the divison first)
5/10 * 3 = (5/10) * 3 = (1/2)* 3 = 3/2 = 1.5
Same approach for the second equation:
4/10 * 4 = (4/10) * 4 = 16/10 = 8/5 = 1.6
Thank you,
MrB
Answer:
7 : 1
Step-by-step explanation:
Paul's car goes 40 kilometers on 7 tanks.
Distance : Tanks
49 : 7
Fuel efficiency means the distance traveled by the car in one tank.
Therefore, we will reduce the ratio by dividing both sides by 7.
Distance : Tanks
: 
7 : 1
Therefore, car's fuel efficiency is 7 kilometers in one tank or the ratio between Distance traveled and fuel tanks is 7 : 1.
Hello!
For every 1 blue marble there are 5 greens
You add the numbers in the ratio
1 + 5 = 6
Divide this number from the amount of marbles
60 / 6 = 10
Multiply the ratio by this
1 * 10 = 10
5 * 10 = 50
There are 10 blue marbles and 50 green ones
The answer is 10
Hope this helps!
The set is not closed
Example:
-4 * -3 = 12 this is not a negative integer