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3 years ago

lauren took 12 hours to read a 360 boo.at this rate how long will it take her to read a 400 page book

Mathematics

2 answers:

yulyashka [42]3 years ago

7 0

Answer:

well it will take her 24 hours duh nobody likes reading

Step-by-step explanation:

adoni [48]3 years ago

6 0

Answer:

13.33 hours

Step-by-step explanation:

$\frac{12}{360} =\frac{x}{400} \\\\360x=4800\\x= 13.33$

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Solve it please. Just wanted to check my drawing skill but please solve it

polet [3.4K]

Answer:

Step-by-step explanation:

I'm assuming that strange looking thing is a 9, so begin by multiplying both sides by that denominator to get:

$x-9=\sqrt{x}+3$ then subtract 3 from both sides to get

$x-12=\sqrt{x}$ and then square both sides to get

$x^2-24x+144=x$ and get everything on one side to solve for x by factoring:

$x^2-25x+144=0$ and factor that however it is you have learned to factor second-degree polynomials to get that

x = 16 and x = 9. We have to check for extraneous solutions because anytime you manipulate an equation, as we did by squaring both sides, you run the risk of these solutions that actually don't work when you plug them back into the original equation. Let's try 16 first:

$\frac{16-9}{\sqrt{16}+3 }=1$ If 16 is a solution, then this statement will be mathematically true.

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$\frac{9-9}{\sqrt{9}+3 }=1$ We know that one doesn't work, because 9-9 = 0 and 0 over anything = 0, not 1.

x = 16 is the only solution.

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3 years ago

Read 2 more answers

What is non-collinear?

Masja [62]

Answer:

Non-colinear means that three given points do not have a single line connecting all 3 of the points.

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4 years ago

I need help what are the steps to find a

aliya0001 [1]

A2 +b2 = c2 are the steps to find your answer

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3 years ago

A golfer’s arm rotates 1/2 of a revolution in 1/10 of a second. If the angular displacement is measured in radians, which statem

anyanavicka [17]

We know that

The angular velocity is 10π rad/sec
step 1
convert to rad/min
1 min-----60 sec
X min----> 1 sec
X=1/60 min
V=10π rad/(1/60)------> V=600 π rad/min

the answer is the option
D)The angular velocity is 600π rad/min.

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3 years ago

Read 2 more answers

I need help pls I WILL GIVE BRAINLIEST Pls help

uranmaximum [27]

Answer:

1. The square root of 100

2.c=27.11

d=13.96

e=12.6

Step by step explanation: 

1. 2×50=100 the geometric mean is the square root of 100

2. The diagram is made up of three right angled triangles the big outer one and two triangles inside the big one thus we can use the pythagorean theorem to come up with expressions which will help us in solving the unknown parts as below.

c²=30²-d²

c²=e²+24²

d²=e²+6²

both the following add up to c² meaning they are equal:

c²=30²-d²

c²=e²+24²

thus

30²-d²=e²+24²

I want to remain with d² only thus;

30²-24²-e²=d²

900-576=324 (squareroot of 324=18) so

d²=18²-e² and d²=e²+6²

both the above add up to d² meaning they are equal thus;

18²-e²=e²+6²

18²-6²=e²+e²

324-36=2e²

318=2e²

159=e²

e=12.61

Thus d²=e²+6²

d²=12.61²+6²

d²=159+36

d²=195

d=13.96

c²=e²+24²

c²=12.61²+24²

c²=159+576

c²=735

c=27.11

 

I hope this helps

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3 years ago