Answer:
70:28
Step-by-step explanation:
70:28 because you just multiply 14 by both numbers and get your answer.
Let's represent h with the number of hours:
15h ≥ 200
h ≥ 200/15
h ≥ 40/3
h ≥ 13 1/3
He has to work at least 13 1/3 hours.
20: 30-4 x (2+5)=2
21. 17-(8-5)= 14
22. You put (10/2)-3+1, but it isn't necessary
Explanation: to solve these equations, use PEMDAS (parentheses, exponents, multiplication, division.) these equations don't involve exponents, though, so ignore that part. If 30 is left alone, you would multiply 4x2 before doing anything else. This would mean you would have 30-8+5' which gets you to 27, an incorrect answer. However, if you put parentheses around (2+5), you add those first, meaning you would then have 30-4(2+5) = 30-4(7) = 30-28= 2.
Try to do the rest; if you're still having trouble add a comment
Answer:
Step-by-step explanation:
Answer:
Step-by-step explanation:
First, she has to add. Second, she has to divide.
5x - 3 = 12
+ 3 + 3
——————
5x = 15
x = 3
Hope this helps!
