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4 years ago

How can you use simple equations to solve real-life problems?

Mathematics

2 answers:

Sergeeva-Olga [200]4 years ago

7 0

Say you want to figure up how much 2 pizzas would cost if they’re 15 dollars apiece, 15•2

Mila [183]4 years ago

4 0

Answer:

Yes

Step-by-step explanation:

Yes you can because you can you that to help you learn that sometime the world is that simple

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At the Arctic weather station, a warning light turns on if the outside temperature is below -25 degrees Fahrenheit. Which inequa

Leya [2.2K]

Answer:

t≥-25

Step-by-step explanation:

this is becuaset ≥ -25 shows that it can not fall under -25, but can be equal to -25.

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3 years ago

What are the measures of the angles in the triangle?

Ierofanga [76]

Answer:

u need to put a picture so we know what your talking about

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3 years ago

48/4 as a mixed number? Please help!

LenaWriter [7]

Answer:

12 is the answer

Step-by-step explanation:

4 0

3 years ago

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A vertical cylinder is leaking water at a rate of 4m3/sec. If the cylinder has a height of 10m and a radius of 2m, at what rate

Katyanochek1 [597]

Answer:

Therefore the rate change of height is $\frac{1}{\pi}$ m/s.

Step-by-step explanation:

Given that a vertical cylinder is leaking water at rate of 4 m³/s.

It means the rate change of volume is 4 m³/s.

$\frac{dV}{dt}=4 \ m^3/s$

The radius of the cylinder remains constant with respect to time, but the height of the water label changes with respect to time.

The height of the cylinder be h(say).

The volume of a cylinder is $V=\pi r^2 h$

$=( \pi \times 2^2\times h)\ m^3$

$\therefore V= 4\pi h$

Differentiating with respect to t.

$\frac{dV}{dt}=4\pi \frac{dh}{dt}$

Putting the value $\frac{dV}{dt}$

$\Rightarrow 4\pi \frac{dh}{dt}=4$

$\Rightarrow \frac{dh}{dt}=\frac{4}{4\pi}$

$\Rightarrow \frac{dh}{dt}=\frac{1}{\pi}$

The rate change of height does not depend on the height.

Therefore the rate change of height is $\frac{1}{\pi}$ m/s.

4 0

3 years ago

The sum of two numbers is 30. Their difference is 6. What are the numbers?

baherus [9]

Answer:

Find out the numbers .

To prove

Let us assume that one number be x.

Let us assume that second number be y.

As given

The sum of two numbers is 30.

Than the equation becomes

x + y = 30

Their difference is 6.

x - y = 6

Thus two equation are .

x + y = 30 and x - y = 6

Subtracted x - y = 6 from x + y = 30

x - x + y - (-y) = 30 - 6

y + y = 24

2y = 24

$y = \frac{24}{2}$

y = 12

Put in the x - y = 6

x - 12 = 6

x = 6 + 12

x = 18

Therefore the two numbers are 12 and 18 .

6 0

3 years ago

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