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e-lub [12.9K]
2 years ago
10

Given that y varies directly with x in the table, find the value of y if the value of x is 5.

Mathematics
1 answer:
Talja [164]2 years ago
7 0

We know that this ratio is directly because the two magnitudes go up.

In this case we will get the <u>proportionality constant</u> by dividing any term of the second magnitude by the first.

<h3>For example: </h3>

9 \:  \div  \:  3 \:  =  \:  \boxed{3}

Now that we know that k = 3, we can know how much "<u>y</u>" will be if <em>x = 5</em>.

We just multiply:

3 \:  \times  \: 5 \:  =  \: \boxed{ \bold{ 15}}

<h3>Answer: <u>y = 15</u></h3>

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Two numbers multiply to be -100 and add to 0
ipn [44]

Well,  +10  and  -10  can do that job.

6 0
3 years ago
Complete the solution of the equation. Find the value of y when x equals -3. <br><br> -x + 3y = 18
Zolol [24]

Answer:

5

Step-by-step explanation:

-x + 3y= 18

X= 3

-(-3)+3y =18

3 + 3y= 18

Subtract 3 from both sides.

3y = 15

Divide by 3 on both sides.

Y= 5

6 0
3 years ago
Calculate the volume and total surface area​
nikdorinn [45]

Answer:

Below.

Step-by-step explanation:

a. Volume =  area of triangular side * length

1/2 * 3 * 4 * 8

= 48 cm^3.

Surface area =  2 * area of the triangle + area of sloping side+ area of the base + area of the back side

= 2 * 1/2 * 3*4 + 5*8 + 3*8 + 4*8

=  12 + 40 + 24 + 32

= 108 cm^2.

b.  Volume = area of the triangular side * length

= 1/2 * 5.0 * 5..0 * 8.2

= 12.5 * 8.2

= 102.5. cm^3.

Surface area = 2 * area of the triangle + 2 * area of a sloping side + area of the basee

=  2 * 1/2 * 5^2 + 2 * 5 * 8.2 +  8.2 * 7.1

= 25 + 82 + 58.22

= 165.22 cm^2.

6 0
3 years ago
Your model train has one engine and eight train cars. Find the total number of ways you can arrange the train. (The engine must
STALIN [3.7K]
64 arrangements I total
4 0
3 years ago
What is nine? Huhhhhhhhhhhh?
grigory [225]

Step-by-step explanation: The base of the power in the original equation becomes the base of the log. So we have ^{log}3.

Next, the exponent in the original equation goes on the other side of the equation and finally, the result in the original equation goes inside the log.

So we have ^{log} 3 9 = 2 which is 3² = 9 written in logarithmic form.

This can also be switched around to read 2 = ^{log} 3 = 9.

So the first choice will be your answer.

My work is also show in the image attached,

I just didn't switch it.

7 0
3 years ago
Read 2 more answers
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