Answer:
Explanation:
Givens
Purple marbles = P
Red marbles = R
Equations
P + R = 114
P = 5*R + 6
Solution
Put the second equation into the first.
5*R + 6 + R = 114 Combine like terms on the left
6R + 6 = 114 Subtract 6 from both sides.
6R +6-6 = 114-6 Combine
6R = 108 Divide by 6
6R/6 = 108/6
R = 18
=======================
P+R = 114
P + 18 = 104 Subtract 18 from both sides.
P + 18-18=104 -18 Do the subtraction
P = 86
Answer:
The mean was 60%.
Explanation:
The mean is the average of your numbers. To calculate the mean you would have to add all the numbers together. Then, you’d divide your total amount by how many numbers you had to add together. For this example, you would add 34+90+87+34+55. This gives you a total of 300. Since you had 5 initial numbers, you would divide 300 by 5. You will come up with a final number of 60 which is your mean.
#3: A should be your answer
When exercising, your body needs more oxygen.
The sea served as anchient Greece's highway because it was the fastest way to get around
1 and D
2 and A
3 and C
4 and B
