Answer:
37 polio vaccinations and 23 measles vaccination.
Step-by-step explanation:
Let the number of polio vaccination given=x
Let the number of measles vaccination given=y
Dr. Potter gave a total of 60 vaccinations
x+y=60
Since each polio vaccination consists of 4 doses, and each measles vaccination consists of 2 doses. A total of 184 doses was given out.
4x+2y=184
To find the values of x and y, we solve the two equations simultaneously.
x+y=60 (1)
4x+2y=184 (2)
From (1), x=60-y
Substitute x=60-y into equation 2.
4x+2y=184
4(60-y)+2y=184
240-4y+2y=184
240-184=4y-2y
56=2y
Divode both sides by 2
y=23
Recall earlier that x=60-y
x=60-23=37
Dr Potter gave 37 polio vaccinations and 23 measles vaccination.
If you would like to simplify <span>4 + (-3) - 2 * (-6), you can do this using the following steps:
</span><span>4 + (-3) - 2 * (-6) = 4 - 3 + 2 * 6 = 1 + 12 = 13
</span>
The correct result would be 13.
Answer:
1.) $640 2.) 7 years.
Step-by-step explanation:
1000 x .2 = 200 1 yr
1000 - 200 = 800
800 x .2 = 160 2 yrs
800 - 160 = 640
640 x .2 = 128 3 yrs
640 - 128 = 512
ANYWAYS THIS WOULD TAKE TO LONG! SO HERE IS THE ANSWER TO B.
31,680 feet per hour.
There are 5280 feet in a mile, so 6(5280)=31,680
Step-by-step explanation:
2(3x + 5y = -19)
6x + 10y = -38
5 (5x -2y = 16)
25x - 10y = 80
19x = 42
but idk from there the rest doesn't work Soo if u can find the prob and tell me I'll fix it.
