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AlekseyPX
3 years ago
14

Which proportion can be used to find 65% of 90?

Mathematics
2 answers:
vladimir2022 [97]3 years ago
5 0
You are right it is c. 65/100=×/90
Goshia [24]3 years ago
3 0

Answer:

<em>C.</em>

Step-by-step explanation:

65% means 65 out of 100, or 65/100.

65% of 90 is an unknown number, x.

65 is to 100 as x is to 90.

65/100 = x/90

Answer is C.

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Which statement about the grapgh of line y=x+1/2 will be true if the 1/2 is replaced by -2
seraphim [82]

Answer:

Step-by-step explanation:

This linear graph will be shifted downward by 2 1/2 units:  first, from y = 1/2 to the x-axis, and next, from the x-axis by 2 more units, for a total shift of 2 1/2 units.

7 0
3 years ago
Graph the equation to solve the system y=2x-3 y=x+6
Aleksandr-060686 [28]
Y = x + 6
y = -3x + 6
put the system of linear equations into standard form
x - y = -6
-3x - y = -6
solution:
x = 0
y = 6
5 0
3 years ago
Find the constant of variation for the relation and use it to write an equation for the statement. Then solve the equation. If y
dsp73
Y=k/x²; substitute x=1 and y=1/8: 1/8=k. So y=1/(8x²)
When x=5, y=1/(8×25)=1/200.
5 0
3 years ago
triangle abc has vertices at a(-2 3),B(0,3),c(-1,-1). Find the coordinates of the image after a reflection over the x-axis.
Crazy boy [7]

The new coordinates of the triangle after reflection from x-axis would be  A(-2, -3) , B(0, -3) and C( -1, 1 )

<u>Explanation:</u>

The vertices of the triangle are A(-2 3), B(0,3), C(-1,-1)

The reflection is over the x-axis.

When the reflection is along the x-axis, the coordinates of x does not change. However, the coordinates of y does change.

The negative value of y becomes positive and the positive value of y becomes negative.

Similarly,

A(-2, 3) would become A(-2, -3)

B(0, 3) would become B(0, -3)

C(-1, -1) would become C( -1, 1 )

Therefore, the new coordinates of the triangle after reflection from x-axis would be  A(-2, -3) , B(0, -3) and C( -1, 1 )

6 0
3 years ago
Simplify: square root 27x12 over 300x8
alex41 [277]

Answer:

10

-------------

3x^2

Step-by-step explanation:

First lets simplify what is inside the square root

300x8

---------------

27x12

3 * 100 x^8

------------------

3 *9 x^12

The 3's cancel  and we know a^b/ a^c = a^(b-c)

100/9 x^ (8-12)

100/9 x^-4

sqrt( 100/9 x^-4)

Put the negative exponent in the denominator and make it positive

sqrt( 100 / (9x^4) )

We know that sqrt( a / b) = sqrt(a) / sqrt( b)

sqrt(100)

----------------

sqrt( 9x^4)

10

-------------

3x^2

Read more on Brainly.com - brainly.com/question/12900964#readmore

5 0
3 years ago
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