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3 years ago

13

Solve 7/8 divided by 3 simplify the answer

2 answers:

inessss [21]3 years ago

6 0

Idk boiiiiiii ok actually all you do is use a couculater

Free_Kalibri [48]3 years ago

5 0

Answer:

7/24

Step-by-step explanation:

$(\frac{7}{8})\frac{1}{3} = \frac{7}{24}$

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The perimeter of a rectangular swimming pool is 154m.its length is 2m more than twice breadth . what are the length and breadth

Wittaler [7]

The breadth is x.
The length is 2 m more than twice the breadth, so it's 2x+2.
The perimeter of a rectangle is twice the sum of the length and the breadth. The perimeter is 154 m.

$2(x+2x+2)=154 \\
x+2x+2=\frac{154}{2} \\
3x+2=77 \\
3x=77-2 \\
3x=75 \\
x=\frac{75}{3} \\
x=25 \Leftarrow \hbox{the breadth} \\ \\
\hbox{the length:} \\
2x+2=2 \times 25+2=50+2=52$

The length of the swimming pool is 52 m, the breadth is 25 m.

8 0

3 years ago

Select or < > = to correctly classify each inequality. <br> -2/3 ___ 2/3<br> 1.4___ 1.6

Paul [167]

I hope this helps you

3 0

3 years ago

Read 2 more answers

What is the value of x

Dima020 [189]

X= 25° becausr every triangle is 180° so just add and see how much is left then that's your answer

4 0

4 years ago

Read 2 more answers

1) If y = x3 + 2x and dx/ dt = 5, find dy/dt when x = 2. Give only the numerical answer. For example, if dy, dt = 3, type only 3

Semenov [28]

Answer:

a) 70

b) 10π ft²/ft

c) 0.24 ft/sec

Step-by-step explanation:

1) y = x³ + 2x

$\frac{dy}{dt}=\frac{d(x^3+2x)}{dt}$

or

$\frac{dy}{dt}$ = $3x^2\frac{dx}{dt}+2\frac{dx}{dt}$

at $\frac{dx}{dt}=5$ and x = 2

$\frac{dy}{dt}$ = $3(2)^2\times(5)+2\times(5)$

or

$\frac{dy}{dt}$ = 60 + 10 = 70

2) A = πr² ft²

$\frac{dA}{dr}=\frac{d(\pi r^2)}{dr}$

or

$\frac{dA}{dr}$ = 2(πr)

at r = 5 ft

$\frac{dA}{dr}$ = 2(π × 5) ft²/ft

or

$\frac{dA}{dr}$ = 10π ft²/ft

3) From Pythagoras theorem

Base² + Perpendicular² = Hypotenuse²

Thus,

B² + P² = H² .............(1)

here, H = length of the ladder

P is the height of the wall

B is the distance from the wall at bottom

or

B² + P² = 25² ...........(1)

at B = 20 ft

20² + P² = 25²

or

P² = 625 - 400

or

P = √225

or

P = 15 ft

differentiating (1) with respect to time, we get

$2B\frac{dB}{dt}+2P\frac{dP}{dt}=0$

at B = 20 ft, $\frac{dB}{dt} = 0.18$ and P = 15 ft

⇒ 2(20)(0.18) + $2(15)\frac{dP}{dt}$ = 0

or

$30\frac{dP}{dt}$ = - 7.2

or

$\frac{dP}{dt}$ = - 0.24 ft/sec (Here negative sign depicts the ladder slides down)

7 0

4 years ago

7 more than the product of 4 and a number is 12

Anastasy [175]

4*x+7=12
4*x=5
x=5/4
The number is 5/4

6 0

3 years ago

Read 2 more answers