3 years ago

What is 3 and 3/4 times 2 and 2/5.please explain process

1 answer:

5 0

What you do is turn them in to improper fractions
you will have 15/4 times 12/5 then multiply
you would get 180/20 and you simplify it to get
9/1 witch = 9

You might be interested in

8x-9x please help I need it bad

alexandr402 [8]

Answer:

-x

Step-by-step explanation:

8x - 9x

Factor out an x

x(8-9)

x (-1)

-x

7 0

3 years ago

How many solutions exist for the mixed-degree system graphed below?

Likurg_2 [28]

The answer is one solution. Hope this helps

8 0

3 years ago

Read 2 more answers

-5+d/3=5 solve the equation what does d equal

Aleks [24]

-5+d/3=5

d/3-5=5

d-3.5/3=5

d-15/3=5

d-15=15

(d-15)+15=15+15

d-15+15=30

d=30
Hope this helps kiddo

8 0

4 years ago

Sin α = 21/29, α lies in quadrant II, and cos β = 15/17, β lies in quadrant I Find sin (α - β).

Sever21 [200]

$\sin(\alpha-\beta)=\sin\alpha\cos\beta-\cos\alpha\sin\beta$

$\sin\alpha=\dfrac{21}{29}\implies \cos^2\alpha=1-\sin^2\alpha=\dfrac{400}{841}$

Since $\alpha$ lies in quadrant II, we have $\cos\alpha$ , so

$\cos\alpha=-\sqrt{\dfrac{400}{841}}=-\dfrac{20}{29}$

$\cos\beta=\dfrac{15}{17}\implies\sin^2\beta=1-\cos^2\beta=\dfrac{64}{289}$

$\beta$ lies in quadrant I, so $\sin\beta>0$ and

$\sin\beta=\sqrt{\dfrac{64}{289}}=\dfrac8{17}$

So

$\sin(\alpha-\beta)=\dfrac{21}{29}\dfrac{15}{17}-\left(-\dfrac{20}{29}\right)\dfrac8{17}=\dfrac{475}{493}$

8 0

3 years ago

9,261.95 x 0.003= ?<br><br> Plzz help

IgorLugansk [536]

Answer:

27.78585

Step-by-step explanation:

4 0

3 years ago