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Sedbober [7]
3 years ago
11

Which statement is true?

Mathematics
2 answers:
steposvetlana [31]3 years ago
3 0

A dilation is a function because the scale factor is always greater than 1.


photoshop1234 [79]3 years ago
3 0
The second statement
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Help thanksssssssssssss
Andreyy89
First, translate the words you're given into math: 2x-y = 60% of 5y.
60% = 60/100 = 0.60. 
0.60(5y) = 3y

2x-y = 3y

>> If this is the SAT and you have to do percentage by hand, you can always use fractions. So, 60% = 60/100 = 6/10 = 3/5. \frac{3}{5} * 5 = 3. 
Another quick percentage trick is that 10% of anything is just that number with the decimal point moved to the left one space. For ex: 10% of 5 = 0.5. And then you can multiply 0.5 by 6 (because 10%*6 = 60%) to get 3.

Back to the problem:
Now you have 2x-y = 3y. You are looking for what \frac{y}{x} equals to. Start by separating the x and y variables by putting them on opposite sides of the equal sign:
2x-y = 3y
2x = 4y

You want x and y on one side and numbers on the other side. You also want y to be on the top of the fraction. What you want to do is divide both sides by x first:
2x = 4y\\
2 = 4 \frac{y}{x}

Finally, isolate the variables by dividing by 4 on both sides:
2 = 4 \frac{y}{x} \\
 \frac{y}{x} =  \frac{2}{4} \\
 \frac{y}{x} =  \frac{1}{2}

The answer is C) 1/2
4 0
4 years ago
Read 2 more answers
Solve for h<br> A=1/2(a+b)h
ahrayia [7]

Answer:

The answer should be 2A/(a+b)=h

3 0
3 years ago
The coordinates of the vertices of quadrilateral ABCD are A(-5, 1), B(-2,5), C(5, 3),
sladkih [1.3K]

Step-by-step explanation:

To calculate a slope, we need to apply: m=\frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

Applying formula to each slope:

m_{AB}=\frac{5-1}{-2-(-5)} = \frac{4}{3}  \\m_{BC}=\frac{3-5}{5-(-2)} =\frac{-2}{7}\\m_{CD}=\frac{-1-3}{2-5}=\frac{-4}{-3} =\frac{4}{3}

So, as you can see, there are equal pair of slopes, meaning that they are parallels, which<em> demonstrate that it's actually a quadrilateral figure.</em>

6 0
4 years ago
Read 2 more answers
The distance around our school playing field is 300m. If our coach want us to run 3 km how many times well we need to run around
kirill [66]
You will need to run around 10 times because 3000m is 3km and 300*10 is 3000 :) i hope i helped
3 0
3 years ago
The sum of two consecutive even integers is 122. what are the integers?​
Volgvan

Answer:

If the numbers were the same, they'd both be 61

So, try 60 and 62.

x + x+2 = 122

2x = 120

x = 60

Hope that helps!

4 0
3 years ago
Read 2 more answers
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