Answer:
It is incorrect because the following gives you a total of 171 and not 1.
Step-by-step explanation:
Answer:
x= 20
Step-by-step explanation:
The sum of the three angles is 90 degrees
x+2x+x+10 = 90
Combine like terms
4x+10 = 90
Subtract 10
4x+10-10 = 90-10
4x= 80
Divide by 4
4x/4=80/4
x = 20
40 flights, you could use rates in this situation.
15 min*4=60 min=1 hr
10:15 multiply each side by 4
<span>40 flights:60 minutes</span>
9514 1404 393
Answer:
660 seconds
Step-by-step explanation:
The least common multiple of 45 seconds and 80 seconds is ...
45×80/GCF(45,80) = 45×80/5 = 720
The next change will be 720 seconds after the last one, so 720 -60 = 660 seconds from now.
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<em>Additional comment</em>
You can find the least common multiple by looking at the factors of 45 and 80:
The LCM will include one copy of the common factor and all of the unique factors:
LCM(45, 80) = 5×9×16 = 720
You can see that the greatest common factor is 5, and that the LCM is the product (5×9)(5×16) divided by 5:
LCM(a, b) = a×b/GCF(a, b)
You need to substitute x with a #
6 (-3)+6=-12