3 years ago

What is a constant of proportionality in the equation 3y equals 2x?

Mathematics

1 answer:

Serga [27]3 years ago

6 0

Answer:

y=2/3x (y equals two-thirds x)

Step-by-step explanation:

3y=2x

(divide by 3 on both sides to get just the y value)

3/3y=2/3x

y=2/3x

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<Q and <R are complementary angles. If m<Q = (31 - 3x)° and m<R = (19x - 5)°, find m<R

Sergio [31]

31-3x+19x-5=90

26+16x=90

-26 -26

--------------------

16x= 64

16x/16= 64/16

x=4

m <R=19 (4)-5= 71.

7 0

3 years ago

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Evaluate arithmetic series:-<br><br> Step-by-step answer, please!

lorasvet [3.4K]

Let's see

$\\ \rm\Rrightarrow {\displaystyle{\sum^{275}_{k=1}}}(-5k+12)$

$\\ \rm\Rrightarrow (-5(1)+12)+(-5(2)+12)\dots (-5(275)+12)$

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a=7
l=-1363
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Sum:-

$\\ \rm\Rrightarrow S_n=\dfrac{n}{2}[a+l]$

$\\ \rm\Rrightarrow \dfrac{275}{2}(7-1363)$

$\\ \rm\Rrightarrow \dfrac{275}{2}(-1356)$

$\\ \rm\Rrightarrow 275(-678)$

$\\ \rm\Rrightarrow -186450$

4 0

2 years ago

Read 2 more answers

Help plz:)))I’ll mark u Brainliest

babunello [35]

Answer:

h = 9

Step-by-step explanation:

cylinder A = $\pi$ $3^{2}$ *4 = 113.0973355 $m^{3}$

Cylinder B = 113.0973355 $m^{3}$

113.0973355 $m^{3}$ = $\pi$ $2^{2}$ *h

113.0973355 $m^{3}$ / 4 $\pi$ = h

8.999999999998 = h

I think b/c of the rounding error of rounding off pi, that h= 9

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3 years ago

In a dorm meal plan, you pay a membership fee; then all your meals are at a fixed price per meal. a. If 100 meals cost $1125 and

Sophie [7]

Answer:

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Step-by-step explanation:

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3 years ago

-9y+7=24y-4. Solve for y.

patriot [66]

Answer:

y=1/3

Step-by-step explanation:

-9+7=24y-4

7=33y-4

11=33y

y=1/3

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3 years ago