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3 years ago

Which is a unit rate?

Mathematics

2 answers:

ivanzaharov [21]3 years ago

6 0

I think that answer is D I am not 100% sure but sorry if I am wrong

ch4aika [34]3 years ago

6 0

Answer:

18 miles driven in a week

Step-by-step explanation:

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What is 7500×5643 ÷3

just olya [345]

Answer:

Step-by-step explanation:

$7500 \times 5643 \\ = \frac{42322500}{3} \\ = 14107500$

8 0

3 years ago

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What is the answer to my image?

aleksklad [387]

Answer:

750 students

Step-by-step explanation:

30/40 = 75%

75% of 1000

= 750

6 0

3 years ago

Two sides of a triangle are 8 m and 9 m in length and the angle between them is increasing at a rate of 0.06 rad/s. Find the rat

Lelechka [254]

<h2>Rate at which area is increasing is 1.08 m²/s.</h2>

Step-by-step explanation:

Area of triangle is with side a and b and angle C between them is given by

A = 0.5 ab SinC

Here we need to find how area changes with a and b fixed and C is changing,

$\frac{dA}{dt}=\frac{d}{dt}\left (0.5 absinC\right )\\\\\frac{dA}{dt}=0.5ab\frac{d}{dt}\left (sinC\right )\\\\\frac{dA}{dt}=0.5abcosC\frac{dC}{dt}$

We have

a = 8 m

b = 9 m

$C=\frac{\pi}{3}rad\\\\\frac{dC}{dt}=0.06rad/s$

Substituting

$\frac{dA}{dt}=0.5\times 8\times 9\times cos\left ( \frac{\pi}{3}\right )\times 0.06\\\\\frac{dA}{dt}=1.08m^2/s$

Rate at which area is increasing is 1.08 m²/s.

4 0

3 years ago

Need help with this question

dybincka [34]

Download a math calculator or math awnsers

7 0

3 years ago

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You bought a boat for $10,000. you have owned it for one year, and it is now worth $8,50 . what is the percent decrease in your

BaLLatris [955]

Change in value= new price-original price
Change in value=850-10000
Change in value= -9150
%decreased=change in value/original price x 100
%decreased= 9150/10000x100
The answer is 91.5%

7 0

3 years ago