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1 year ago

What is the distance from 7 to 10

1 answer:

3 0

To find the distance between two numbers on the number line, you have to subtract the smallest one to the greatest one. In this case, the distance from 7 to 10 is 10 - 7 = 3

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A motorboat traveling with the current went 80 miles in 4 hours. Against the current, it took 5 hours to travel the same distanc

AysviL [449]

Let x be the speed of the motorboat and y be the speed of the current.

Then, for downstream, the speed is x + y.

Now, speed = distance/time.

Distance = 80 miles.

Time for downstream = 4 hours.

So, x + y = 80/4 = 20 (1)

Against the current, that is for upstream, the speed is x - y.

Time for upstream = 5 hours.

x - y = 80/5 = 16 (2)

Adding (1) and (2), we get,

2x = 36

x = 18

Hence, rate of the motorboat in calm water = 18 miles/hour.

3 0

3 years ago

I need help fast please

Kay [80]

I'd say the answer is 6 units. not completely sure.

8 0

3 years ago

The radio broadcast of AM station KTBC can be heard in the neighboring towns of Waterville and Newport. Of the total number of r

maria [59]

Answer: The required probability is 22.5%.

Step-by-step explanation:

Since we have given that

Probability of radio listeners live in Waterville = 0.75

Probability of radio listeners live in Newport = 0.25

Probability of radio station KTBC in Waterville = 0.20

Probability of radio station KTBC in Newport = 0.30

So, using "Multiplication rule of Probability":

Probability that the listener will be tuned in to station KTBC is given by

$0.75\times 0.20+0.25\times 0.30\\\\=0.15+0.075\\\\=0.225\\\\=22.5\%$

Hence, the required probability is 22.5%.

6 0

4 years ago

Find the zero of the function. state the multiple zero . y=9x^3 -9x

fenix001 [56]

Factor out the GCF of 9x first. 9x(x^2-1)=0; 9x(x+1)(x-1)=0; set each factor equal to zero. x=0, x=-1,. x=1 each has a multiplicity of one.

8 0

4 years ago

For which values of x is the expression undefined?

lord [1]

Answer:

-3, -6

Step-by-step explanation:

Any number of x that makes the bottom 0 makes the expression undefined.

Factor the polynomial in the denominator:

(x+3)(x+6)

Values of x that makes the expression undefined are -3 and -6

Support me by choosing my answer as the brainiest :)

5 0

2 years ago