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3 years ago

15

I need to know if it is a proportional relationship and if it is i need a explanation,and the unit rate if it is a proportional

relationship

1 answer:

11Alexandr11 [23.1K]3 years ago

3 0

Answer:

No

Step-by-step explanation:

If a portrait is painted in 4 hours then two portraits should be painted in 4 hours.

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Hi help please thanks

natima [27]

Answer:

Im pretty sure its the 4th one (bottom right hand corner)

Step-by-step explanation:

4 0

2 years ago

A web music store offers two versions of a popular song. The size of the standard version is 2.3 megabytes (MB). The size of the

Effectus [21]

answer

240 standard versions

set up equations

s = number of standard versions

h = number of high quality versions

the total size of all standard versions would be 2.3s since each standard version is 2.3 MB

the total size of all high quality versions would be 4.4h since each standard version is 4.4 MB

add them together to get the total size (2664 MB) of all versions

2664 = 2.3s + 4.4h

since the high quality version was downloaded twice as often as the standard, we can say that

h = 2s

substitute h into equation and solve

2664 = 2.3s + 4.4h

h = 2s

2664 = 2.3s + 4.4(2s)

2664 = 2.3s + 8.8s

2664 = 11.1s

s = 2664/11.1

s = 240

7 0

3 years ago

What is 9(5x)? I really need help on this

zheka24 [161]

Answer:

45x

Step-by-step explanation:

that is the answer!!! :)

8 0

2 years ago

Read 2 more answers

If 40% of x + 20% of x + 1/10 = 75% of x, then find the value of x. Please give answers with steps

tatyana61 [14]

Answer:

x = 13/12

Step-by-step explanation:

explain on image

3 0

2 years ago

Read 2 more answers

The side lengths of a triangle are 9, 12, and 15. Is this a right triangle?

andriy [413]

Answer:

<h2>Yes, this is a right triangle.</h2>

Step-by-step explanation:

Hypotenuse always have the highest number than base and perpendicular.

Hypotenuse ( h ) = 15

Base ( b ) = 9

Perpendicular ( p ) = 12

Let's see whether the given triangle is a right triangle or not

Using Pythagoras theorem:

${h}^{2} = {p}^{2} + {b}^{2}$

Plugging the values,

${15}^{2} = {12}^{2} + {9}^{2}$

Evaluate the power

$225 = 144 + 81$

Calculate the sum

$225 = 225$

Hypotenuse is equal to the sum of perpendicular and base.

So , we can say that the given lengths of the triangle makes a right triangle.

Hope this helps..

Best regards!!

4 0

2 years ago

Read 2 more answers