Step-by-step explanation:
Area of a rectangle is base times height.
A = bh
A = (12 in) (2.5 in)
A = 30 in²
The least common multiple would be 240.
120(2)=240 AND
80(3)=240
Answer: x=-50
Step-by-step explanation:
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Answer:
divide 63 by 3 to get how many copies will be made in 1 min, 63/3= 21
divide 315 to 21 to know how many min it will take= 315/21= 15
It will take 15 min to make 315 copies!
Step-by-step explanation:
Hope this helps!!!
Answer:
![-4(a + b = 6)](https://tex.z-dn.net/?f=-4%28a%20%2B%20b%20%3D%206%29)
Step-by-step explanation:
Given
![a + b = 6](https://tex.z-dn.net/?f=a%20%2B%20b%20%3D%206)
![4a + 2b = 19](https://tex.z-dn.net/?f=4a%20%2B%202b%20%3D%2019)
Required
Eliminate a
Multiply the first equation by -4
![-4(a + b = 6)](https://tex.z-dn.net/?f=-4%28a%20%2B%20b%20%3D%206%29)
Add to the second equation
![-4(a + b = 6) + (4a + 2b = 19)](https://tex.z-dn.net/?f=-4%28a%20%2B%20b%20%3D%206%29%20%2B%20%284a%20%2B%202b%20%3D%2019%29)
Solve brackets
![(-4a -4b = -24) + (4a + 2b = 19)](https://tex.z-dn.net/?f=%28-4a%20-4b%20%3D%20-24%29%20%2B%20%284a%20%2B%202b%20%3D%2019%29)
Open bracket
![-4a + 4a -4b + 2b = -24 + 19](https://tex.z-dn.net/?f=-4a%20%2B%204a%20-4b%20%20%2B%202b%20%3D%20-24%20%2B%2019)
![-4b + 2b = -24 + 19](https://tex.z-dn.net/?f=-4b%20%20%2B%202b%20%3D%20-24%20%2B%2019)
At this point, a has been eliminated;
From the list of given options, the option that answers the question is ![-4(a + b = 6)](https://tex.z-dn.net/?f=-4%28a%20%2B%20b%20%3D%206%29)