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natali 33 [55]
3 years ago
11

Hi what is the answer

Mathematics
2 answers:
saveliy_v [14]3 years ago
5 0

Answer:

y = 5x

y = 60 when x =12

Step-by-step explanation:

Directly proportional means

y = kx where k is the constant of proportionality

We know y and k so we can find k

30 = k*6

Divide each side by 6

30/6 = 6k/6

5 =k

The equation is

y = 5x

We can find y when x=12

y = 5*12

y = 60

elena-s [515]3 years ago
4 0

Answer:

a) y = 5x

b) y = 60

Step-by-step explanation:

We can see that when you multiply x by 5, you get the y value.

So, 12*5 = 60.

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Which number is the largest explain how you know 58,700 or 5.87×10^5​
Aleonysh [2.5K]

Answer:

5.87×10^{5}

Step-by-step explanation:

5.87×10^{5} is 587,000 written in scientific notation.

587,000 > 58,700

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3 years ago
Through: (-5, -3), perp. to y=-9/4x-5
Mrrafil [7]

Given:

A line passes through (-5,-3) and perpendicular to y=-\dfrac{9}{4}x-5.

To find:

The equation of the line.

Solution:

We have,

y=-\dfrac{9}{4}x-5

On comparing this equation with slope intercept form, i.e., y=mx+b, we get

m_2=-\dfrac{9}{4}

It means, slope of this line is -\dfrac{9}{4}.

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Slope of required line is \dfrac{4}{9} and it passes through the point (-5,-3). So, the equation of the line is

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y+3=\dfrac{4}{9}(x+5)

9(y+3)=4(x+5)

9y+27=4x+20

27-20=4x-9y

7=4x-9y

Therefore, the equation of required line is 4x-9y=7.

8 0
3 years ago
Julie runs 1 1/2 miles in 1/3 hour.How many miles will she run per hour at the same speed?
konstantin123 [22]
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enyata [817]

Answer:

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Step-by-step explanation:

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                                            P(A)

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3 years ago
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