Answer:
63.5minutes
Step-by-step explanation:
Let the time it takes the small pipe to fill the tank be x
Let the time it takes the larger pipe to fill the tank be y
If the two pipes can fill a tank in 98 minutes if both are turned on then:
x+y = 98...1
If only one is used and it takes 29 minutes longer for the smaller pipe to fill the tank than the larger pipe
x = 29+y... 2
Substituting equation 2 into 1 to get y we have:
29+y+y = 98
29+2y = 98
2y = 98-29
2y = 69
y = 69/2
y = 34.5minutes
x = 29+34.5
x = 63.5
This means it will take the smaller pipe 63.5minutes to fill the tank
Answer:
y = 3x+3
Step-by-step explanation:
Slope = 3 and y-intercept = 3
The numbers are constants, and the multiplication symbol is an operator.
If this equation were 4x * 6 = 24, then 4 would be a coefficient and x would be a variable. 6 and 24 are still constants and the multiplication symbol is still an operator.
Let us set up the equation using the given information
Boys = x
Girls = √x
Boys + girls = 42
Equation: x + √x = 42
You can now work out this equation to solve for x, OR reason your way through it. By substituting numbers into the equation. Try 36
36 + √36 = 42
36 + 6 = 42
42 = 42
ANSWER: 36 Boys (and 6 girls)
Hope this helps! God bless!! :)
<span>Since 7 and 11 are both rational, the sum and difference are rational
</span><span>(p−7)=±11</span>