Answer:
The total distance he ran and rode is 16.05 miles
Step-by-step explanation:
Here, we want to find the total distance that was ran and biked by Jake
For the running, the track measures 1.2 miles and he ran two laps.
That gives a total of 1.2 * 2 = 2.4 miles
For the biking, the track is 4.55 miles and he went 3 laps.
The total amount of laps went is 4.55 * 3 = 13.65 miles
So the total amount of distance he has biked and ran is 13.65 + 2.4 = 16.05 miles
<h3>
Answer: 49/100</h3>
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Explanation:
There are 7 dimes and 3 pennies, leading to 7+3 = 10 coins total.
The probability of not picking a penny is 7/10. If the first coin is put back, then the probability doesn't change for the second selection.
The probability of getting two dimes is (7/10)*(7/10) = 49/100 when the first coin is replaced.
If the first coin is not replaced, then the answer would be (7/10)*(6/9) = 42/90 = 7/15
When you talk about balanced equations you are talking about chemistry.
Chemical equation balance is to make sure that there are the same number of atoms of a given element in the right side than in the left side.
It is a chemical principle, the atoms do not create or destroy in a chemical reaction, then you have to count the same number of every kind of atoms in the left side than in the right side.
For example:H2 + O2 -> H2O is not balanced because there two atoms of oxygen in the left side and 1 atom of oxygen in the right side.
To balance this equation you have to insert coefficients:
2H2 + O2 -> 2H2O. Now you have 4 atoms of hydrogen in each side, and 2 atoms of oxygen in each side, making sure that none atoms was created or destroyed in the reaction.
Answer:
3:8
Step-by-step explanation:
If the ratio of red marbles to blue marbles is 8:3, and the question is asking for the ratio of blue marbles to red marbles, all you have to do is switch the numbers around.
The ratio of blue marbles to red marbles is 3:8
Hope this helps!
Answer:
m=-2
Step-by-step explanation:
7(m+5)=21
m+5=21/7
m+5=3
m=3-5
m=-2
