How many 6-digit even numbers between 640,000 and 645,000 can be formed using the digits given below? Use each digit only once.
1 answer:
The first two digits must be 6 and 4.
The third digit must be between 0 (inclusive) and 5 (exclusive), so there are 2 choices for it (0 or 2).
The remaining three digits have no additional restrictions. There are 3! = 6 ways to permute them.
Then there are 2•6 = 12 such numbers.
640 279
640 297
640 729
640 792
640 927
640 972
642 079
642 097
642 709
642 790
642 907
642 970
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so 2.5 kilometers per second
The exterior angles should be A & C
-41.
Explanation and show work:
Answer:
x,y=-19,55
Step-by-step explanation:
plug in y.
5x+2(-3x-2)=15
5x-6x-4=15
-x=19
x=-19.
Plug in.
y=-3(-19)-2
y=55
correct is B.
Hope this helps :D
The information given requires you to rework the formula as :
distance÷time=rate
so then plug in values to get
5÷2=rate
and the answer will be 2.5 as your rate
