Answer:
690
Step-by-step explanation:
Put 30 where m is in the expression and do the arithmetic. Or, simpify the expression first, then do the same.
14·30 +30 +17·30 -9·30 = 420 +30 +510 -270 = 690
Simplifying first, you have ...
14m +m +17m -9m = m(14 +1 +17 -9) = 23m
23·30 = 690
Answer:
c) -2/5=0.4 d) -5/2=0.4 are incorrect
4 minutes and 30 seconds go into 2 hours 26 times
119
Answer:
Part A) plot 1 and -2.5.
B) The opposite of 2 is -2. The only number that has its own opposite is 0. The first statement is false.
The opposite of 1.5 is -1.5, so the opposite of the opposite of 1.5 is equal to the opposite of -1.5, which is 1.5. The second statement is true.
Hope this helps sorry for not answering earlier
