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3 years ago

What is the slope of the line that passes (3,8)(5,-4)

Mathematics

1 answer:

Brrunno [24]3 years ago

8 0

Answer:

The slope is 2

Step-by-step explanation:

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The san paulo community swimming pool can be filled in 12 hr if water enters through a pipe alone or in 30 hr if water enters th

Nuetrik [128]

Alright, lets gets started.

If water enters through a pipe alone, swimming pool can be filled in 12 hr.

Or say, in 12 hrs, swimming pool can be filled with help of pipe.

It means in 1 hr, the part of swimming pool filled = $\frac{1}{12}$ (For pipe only)

Similarly, with hose only, , in 1 hr, the part of swimming pool filled = $\frac{1}{30}$

So, water is coming from both, pipe and hose , then in 1 hr, the part of pool filled will be = $\frac{1}{12} + \frac{1}{30}$

Suppose in x hrs, with both supplies, pipe and hose, pool is filled.

Means

$\frac{1}{12} + \frac{1}{30} = \frac{1}{x}$

making common denominator

$\frac{30}{360} + \frac{12}{360} = \frac{1}{x}$

$\frac{30 + 12}{360} = \frac{1}{x}$

$\frac{42}{360} = \frac{1}{x}$

Flipping

$\frac{360}{42} = x$

$x = \frac{60}{7}$

Means 8.57 hrs : Answer

Hope it will help :)

7 0

3 years ago

I WILL GIVE BRAINLIEST ANSWER! PLZ HELP Sue and Bob both jumped rope to raise money for new gym equipment together they earned $

Phantasy [73]

The ratio of sue's earnings to bob's is 2:1
2+1=3
24÷3=8
8×2=$16
so sue earned $16 and Bob earned $8

8 0

3 years ago

After 4 days, a plant is measured to be 10 inches tall. Later, after a total of 20 days, then height is measured to be 18 inches

vesna_86 [32]

Given :

After 4 days, a plant is measured to be 10 inches tall.

Later, after a total of 20 days, then height is measured to be 18 inches.

To Find :

The rate of growth for the plant.

Solution :

We know, rate is given by :

$Rat e=\dfrac{\text{Change in height}}{\text{Time taken}}\\\\Rate = \dfrac{18-10}{20-4}\\\\Rate = 0.5 \ inch/day$

Therefore, rate of increase of height is 0.5 inch/day .

Hence, this is the required solution.

7 0

3 years ago

What is the measure of angle x?

d1i1m1o1n [39]

The triangle BAC has two known measurements 30 and 90 so add those together and subtract by 180

30 + 90 = 120

180 - 120 = 60°

6 0

4 years ago

Write an expression, using an exponent that is equivalent to 6 x 6 x 6 x 6 x 6.

valentinak56 [21]

Answer:

6^5

Step-by-step explanation:

put the 5 and make it tiny on top of the 6

3 0

3 years ago

Read 2 more answers