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djyliett [7]
3 years ago
7

It takes 2 hours for faucet A to fill a tank, and it takes faucet B 3 hours. How many hours will it take the faucet to fill the

tank together
Mathematics
1 answer:
Sergeu [11.5K]3 years ago
4 0

Answer:

  1.2 hours

Step-by-step explanation:

A fills 1/2 tank per hour; B fills 1/3 tank per hour, so together they fill ...

  1/2 +1/3 = 3/6 +2/6 = 5/6 . . . . tank per hour

The reciprocal of this rate give the rate in the units we want:

  6/5 hours per tank.

__

At that rate, it will take 6/5 = 1.2 hours to fill the tank.

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If the area of the rectangle is five times the area of the triangle work out the width of the rectangle please help !
Mariulka [41]

Answer:

Insufficient Data

Step-by-step explanation:

Please correct the problem. Given details are not enough or/and precise to suggest solution

6 0
2 years ago
Are the two events “choosing a sophomore” and “choosing someone who replied ‘Yes’” independent events?
4vir4ik [10]
Yes, they are independent event such that occurring the first event “choosing a sophomore” does not affect the probability of occurring the second event <span>“choosing someone who replied ‘Yes’”</span><span />
5 0
3 years ago
What is the equation of a line with a slope of 7 and a point (1, 8) on the line?
Helen [10]

Answer:

y=7x+1

Step-by-step explanation:

we know that

The equation of the line into slope intercept form is equal to

y=mx+b

where

m is the slope

b is the y-intercept

In this problem we have

m=7

point(1,8)

substitute and solve for b

8=7(1)+b

8=7+b

b=8-7=1

The equation of the line is equal to

y=7x+1

7 0
3 years ago
A remote-control airplane descends at a rate of 2 feet per second. After 3 seconds it is 67 feet above the ground. Write the equ
Anastaziya [24]
A] <span>A remote-control airplane descends at a rate of 2 feet per second. After 3 seconds it is 67 feet above the ground. 
the point slope equation will be given as follows:
y-y1=m(x-x1)
where:
slope,m=2 ft/sec
(x1,y1)=(3,67)
thus plugging in the values in the formula, we obtain the point slope equation as follow:
y-67=2(x-3)

Answer:
</span>y-67=2(x-3)

b]The height of the plane after 8 seconds will be:
x=8 sec
but:
y-67=2(x-3)
substituting x=8 we get:
y-67=2(8-3)
y-67=2(5)
y=10+67
y=77
thus the height after 8 seconds is 77 ft
4 0
3 years ago
16, 33, 31, 33, 84, 11, 44, 82, 82, 84<br>Mean:<br>Mode:<br>Median:<br>Range:<br>​
In-s [12.5K]
Mean is 10

Because add them all up then divide by how many numbers there are
6 0
2 years ago
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