All categories

3 years ago

Please help with this question

Mathematics

1 answer:

Dahasolnce [82]3 years ago

8 0

Answer:

10X + 20 +5X +25 = 180

15x=180-45

X= 135/15

X=9

Please mark me brainliest and thank me and rate me. Sis.

You might be interested in

Solve for the probability that a student is selected at random from a group of 20 students will draw a 6 from a bag with the num

Mariana [72]

Depending on what the number is in for the bag

8 0

3 years ago

A frog is jumping onto a lily pad. Its height, h (in feet), is recorded at various seconds, t, in the

myrzilka [38]

Answer:

I don't know

Step-by-step explanation:

sorry

7 0

3 years ago

Evaluate 9(4x – 15) if x = 3.

4vir4ik [10]

Answer:

-27

Step-by-step explanation:

9(4x – 15)

Substitute 3 for x

9((4)(3) - 15)

Multiply (4)(3) = 12

9 ( 12 - 15 )

Subtract 12 - 15 = -3

9(-3)

Multiply 9(-3) = -27

5 0

3 years ago

Read 2 more answers

If one factor is (x+1), what is the other factor?

Brrunno [24]

If you need anything else just tell me but I need more info for the
Answer

5 0

3 years ago

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

Lyrx [107]

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.

3 0

3 years ago