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slamgirl [31]
3 years ago
15

A student thinks that (1, 2) is a solution to y = 2x - 3. While checking the solution, the student gets 1 = 2(2) -3. What error

did the student make when entering the values of x and y?
Mathematics
1 answer:
BabaBlast [244]3 years ago
6 0
He put in the value of x into y
and the value of y in x
if that confuse you here this is what it will look like
(x,y)->(y,x)
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An item is regularly priced at $70. Keiko bought it on sale for 80% off the regular price. How much did Keiko pay? $
pantera1 [17]

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$14

Step-by-step explanation:

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2 years ago
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figure a is a scale image of figure b the scale image that maps figure a onto figure b is 1:7 1/4 enter the value of x
skad [1K]

Answer: x=21.75

Step-by-step explanation:

You need to convert from mixed number to decimal number.

In order to do this, you can follow the steps shown below:

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7\frac{1}{4}=7+0.25=7.25

Then, the scale image that maps "Figure A" onto "Figure B" is:

1:7.25

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Therefore, the result is:

x=(3)(7.25)\\\\x=21.75

3 0
3 years ago
The heights of women aged 20 to 29 are approximately normal with mean 64 inches and standard deviation 2.7 inches. men the same
Serjik [45]
The number of standard deviations from the mean for a man 72 inches tall is
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3 years ago
13. WILL MARK BRAINLIEST!! HELP!​
Umnica [9.8K]

Answer:

\large\boxed{\dfrac{x+2}{x^2-6x-16}\div\dfrac{1}{9x}=\dfrac{9x}{x-8}}

Step-by-step explanation:

\dfrac{x+2}{x^2-6x-16}\div\dfrac{1}{9x}=\dfrac{x+2}{x^2+2x-8x-16}\cdot\dfrac{9x}{1}\\\\=\dfrac{(x+2)(9x)}{x(x+2)-8(x+2)}=\dfrac{(x+2)(9x)}{(x+2)(x-8)}\\\\\text{cancel}\ (x+2)\\\\=\dfrac{9x}{x-8}

8 0
3 years ago
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