Answer:
24.
Step-by-step explanation:
The fraction of red counters in the bag = 3/5.
So you'd expect 3/5 * 40
= 120/5
= 24.
For this, we need to find the lowest common multiple of 10 and 8
multiples of 10 : 10,20,30,40,50
multiples of 8 : 8,16,24,32,40
so the LCM of 10 and 8 is 40
therefore, they will both flash at the same time again in 40 seconds.
Answer:
B, C
Step-by-step explanation:
I am sure you have heard of the vertical line test. What the vertical line test does is make sure, for every, input, there is only one output. What this means is that two points cannot have the same x, unless they have the same y.
Two different x's can have the same y, but two different y's cannot have the same x.
In this problem, the x's that are taken by other coordinates with different y values are: 1, 3, 4, -4.
This means that the x you are trying to find cannot be any of those since the y value is different than all the other points. Which leaves you with the answers B and C.
Hope this helps, don't hesitate to ask more questions.
the number of moles in a liter is 0. 045 moles
<h3>What is mole?</h3>
Mole, in chemistry, is known as a standard scientific unit used for measuring large quantities or amounts of very small entities such as atoms, molecules, or other specified particles.
It is important to note that the number of units in a mole is also called its Avogadro’s number
The basis for the conversion of moles to liters is
1mol = 22.4Liter
Hence,
If 1 mol = 22. 4Liter
Then x mol = 1Liter
Cross multiply
x × 22. 4 = 1 × 1
22. 4x = 1
Divide through by 22.4
x = 1/ 22. 4
x = 0. 045 moles
Thus, the number of moles in a liter is 0. 045 moles
Learn more about moles here:
brainly.com/question/14464650
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