Answer: 3
Step-by-step explanation:
PEMDAS
Start by simplifying the exponent
2^3 = 8
Multiplh 4 and 6
24
combine
24/8 = 3
So,
All you have to do is to translate the words into open sentences with placeholders.
Apparently, there are 2 numbers, call them x and y.
Now, build open sentences.
x + y = 12
x - y = 4
Now, which method will we use to solve? I choose Elimination by Addition.
Add the equations together.
2x = 16
Divide both sides by 2
x = 8
Substitute
8 + y = 12
Subtract 8 from both sides.
y = 4
Check
The sum of the two numbers is 12 (8 + 4).
The difference of the two numbers is 4 (8 - 4).
The first number is 8.
The second number is 4.
The correct option is B, it doesn't increase every minute, only every ten minutes so option A is wrong. and option C and D are wrong too bc it doesn't increase by 5 cents. hope this helps, have an amazing day :)
Answer:
You basically grow rep
Step-by-step explanation:
Brainly points you need for asking questions and people are more likely to trust you with their questions if you have alot!
You have the ratio set up correctly:
2x+2/12 = x+3/21
Now cross multiply:
2x+2 * 12 = x+3 * 21
Simplify:
24x + 24 = 21x + 63
Subtract 24 from each side:
24x = 21x + 39
Subtract 21x from each side:
3x = 39
Divide both sides by 3:
x = 39/3
x = 13