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Gre4nikov [31]
3 years ago
10

If y is proportional to x and y = -15 when x = -20, what is the value of x when y = 12?

Mathematics
2 answers:
Kay [80]3 years ago
7 0
-20           x
------ = ---------
-15          12

-15x = -240
      x = -240/-15
      x = 16

hope this helps :)


Oksi-84 [34.3K]3 years ago
5 0
I think x would be 7 
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The length of a table is 2 meters 50 centimeters. What is the length of the table in millimeters?
sweet [91]

Answer:

A

Step-by-step explanation:

2 meters=2000millimeters

50 centimeters=500 millimeters

8 0
3 years ago
phil ate three less than twice as many pancakes as sara. together they combined to eat 15 pancakes. How many pancakes did each e
Levart [38]

Answer:

Let x represents the Sara eat pancake and y represents the Phil eat the pancake.

As per the statement:

Phil ate three less than twice as many pancakes as Sara.

"Twice as many pancake as Sara" means 2x

"three less than twice as many pancakes as Sara" means 2x -3

⇒y = 2x-3         .....[1]

It is also given that together they combined to eat 15 pancakes.

⇒x+y =15      .....[2]

Substitute equation [1] into [2] we get;

x+2x-3 = 15

Combine like terms;

3x-3 =15

Add 3 to both sides we get;

3x = 18

Divide both sides by 3 we get;

x = 6

Substitute the value of x in [1] we get;

y = 2(6)-3 = 12-3 =9

y = 9

Therefore, the pancakes did each eat are;

Sara eat pancake = 6 and Phil eat pancake = 9


8 0
3 years ago
I rlly need help with this
lakkis [162]

You need to give more info so like show more of the question

5 0
3 years ago
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Find the length x.<br> 5<br> X<br> 45<br> PLS THIS IS ERGENT
Annette [7]

Answer:

X = 7.5

Step-by-step explanation:

First, divide 5 by 3 to find the scale factor:

5/3 = 1.667

Now, multiply 4.5 by 1.667 to find x:

x = (4.5)(1.667)

x = 7.5

Therefore, x is equal to 7.5.

<em>I hope this helps!!</em>

<em>- Kay :)</em>

4 0
3 years ago
SOMEONE PLEASE I NEED HELP Find a polynomial f(x) of degree 4 that has the following zeros. 6, 5, -4, -7 - Leave your answer in
sattari [20]

Answer:

y=(x-6)(x-5)(x+4)(x+7)

Step-by-step explanation:

<u><em>Formulate the equation of the polynomial function</em></u>

<u><em /></u>y=(x-6)(x-5)(x+4)(x+7)

<em>I hope this helps you</em>

<em>:)</em>

8 0
2 years ago
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