A. define the variables : a = abby's miles, j = james' miles

b. a = j + 4......j = a - 4

c. a + j = 28
a = j + 4

d. (j + 4) + j = 28
2j + 4 = 28
2j = 28 - 4
2j = 24
j = 24/2
j = 12

a = j + 4
a = 12 + 4
a = 16

e. check..
a + j = 28
16 + 12 = 28
28 = 28 (correct)

solution is : abby's miles (a) = 16
james' miles (j) = 12

8 0

3 years ago

If carbon monoxide reaches a temperature of over 1,100 degrees Fahrenheit, it will ignite in a combustion reaction with oxygen.

fiasKO [112]

Answer:

A. 2CO + O2 ---> 2CO2

Step-by-step explanation:

2CO + O2 ---> 2CO2

6 0

3 years ago

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I need help! Please! 30 points!

Arada [10]

I'm sorry and I feel that your probably going to get mad, but we can't answer this question without knowing what those drag-and-drop options are! I hope that you can quickly re-post this, and then I will be able to help you! Sorry!

Miri

3 0

2 years ago

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