Answer:
dr. potter provides 54 vaccinations TOTAL (including both measles and polio).
p+m=54
since there are 4 doses of polio and of measles, you have to use a variable to distinguish how many doses were given for measles and polio out of 142 given doses.
4p+2m=142
p+m=54
4p+2m=142
^^system of equation
p+m=54
4p+2m=142
p=54-m
4p+2m=142
(substitute 54-m to the equation)
4(54-m)+2m=142
m=37
(collect like terms, then substitute the value of m into the first equation)
p=54-37
p=17
(m, p)=(37, 17)
Step-by-step explanation:
i hope this helps, sorry for the wait
The LCM of 15 and 25 is 75
The LCM is the smallest number that you can get from multiplying both numbers.
multiples of 15: 15, 30, 45, 60, 75...
multiples of 25: 25, 50, 75....
as you can see, 75 is the first number to pop up in both.
Hope this helps! ;D
Multiply bottom equation by -3 to add and eliminate y’s.
So...
5x-15y=10
+-9x+15y=18
You get -4x=28 so x=-7
Plug in to get y
5(-7)-15y=10
-35-15y=10
-15y=45
So y=-3
Check in other equation
3(-7)-5(-3)=
-21+15=-6
So x= -7 and y= -3
Answer:
90 Degrees
Step-by-step explanation:
The square at the bottom left corner of the triangle is ALWAYS equal to 90 degrees. I hope this helps :)
324 pounds
24% = 
= 0.24
0.24 × 1350 = 324 pounds
He should collect 324 more pounds of waste paper
