Answer:
x=15 y=12 z=2
Step-by-step explanation:
4x=60 x=15
5y=60 y=12
2z=4 z=2
The first one is A and the second is either B or D I can’t decide
Answer: 30 cards
Step-by-step explanation:
To find the greatest possible number of cards in each pile such that there is the same number of cards in each pile we need to find the greatest common factor of 750 and 660.
Using Euclid division method , we have

Hence, the greatest common factor of 750 and 660 = 30
Thus, there will be 30 cards in each pile.
Answer:
140 ml is needed to give 10.5g of Gantrisin
Step-by-step explanation:
In this question, we are asked to calculate how many milliliters liters will give a certain mass of Gantrisin.
Firstly, from the first values given, we can calculate the value if the density of the liquid.
Mathematically, the value of the density can be calculated by ;
Density = mass/volume = 1.5g / 20ml = 0.075 g/ml
Now for the second part of the question, we have the mass, but we do not know the volume. We can use the calculated density to know this.
We use the formula
volume = mass/density
Volume = 10.5g/(0.075g/ml)
Volume = 140 ml