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vladimir2022 [97]
2 years ago
5

Will mark brainlist! Andrea spent $2 to make 10 prints from a photo both. Later, she spent $6 to make 30 prints. Did she get a b

etter deal the first or second time she purchased prints. How do you know?
Mathematics
1 answer:
notka56 [123]2 years ago
3 0

Answer:

She got an equally good deal both times

Step-by-step explanation:

\frac{2}{20} can be simplified to make \frac{1}{5}

\frac{6}{30} can be simplified to make \frac{1}{5}

they are the same

You might be interested in
What is 1/7 of 28.....​
slava [35]

Answer:

4

Step-by-step explanation:

We need to perform a multiplication.

The following rule is applied:

A/B C = AC/B

In our example, the factors in the new numerator are:

28, 1,

Notice that all non-fraction factors are placed in the numerator.

The only factor in the new denominator is:

7

We need to reduce this fraction to the lowest terms.

This can be done by dividing out those factors that appear both in the numerator and in the denominator.

In our example, this is the common factor:

7

We need to evaluate a power by multiplying the base by itself as many times as the exponent indicates.

In our example, base 2 will be multiplied by itself twice.

Then we're left with our answer: 4

7 0
3 years ago
Which equation describes a line with a slope of 1 and includes the point (1,2)
klemol [59]
There are several different forms for the equation of a line. Point-Slope works pretty well for this one.

Remember, point-slope form looks like this: 

(y - y_{1}) = m(x -  x_{1})

Where the _1 means you sub in a point that matches that coordinate.
(x,y)

m, is the slope.

So an equation of the line would look like this: 
(y - 2) = 1(x - 1)

The times 1 slope is implied, so you could also write it as: 
(y - 2) = (x - 1) 

(Removing the parenthesis is also acceptable, in this case)

Let's say you were not given it in point slope form. Then let's take the point slope form we made and put it into the slope intercept form by solving for y.

y -2 = x - 1

Solve for y by adding 2 on both sides. 

y - 2 + 2 = x - 1 + 2 

y = x + 1

Once again the 1 slope is implied. So these are both acceptable forms. I hope this helps! 
3 0
3 years ago
One fourth of the seventh-grade students made honor roll students increased by 18 in the second quarter. If 105 students made ho
Elis [28]
I think there are 348 students
7 0
3 years ago
Convert the following repeating decimals to
adoni [48]
16/99

8/9

2/9

do the last three have a decimal in the start?
3 0
2 years ago
Determine the center and radius of the following circle equation:<br> x2 + y2 – 10x + 8y + 40 = 0
antiseptic1488 [7]

Answer:

The center of this circle is (5, -4) and the radius is 1.

Step-by-step explanation:

First regroup these terms according to x and y :

x^2 - 10x + y^2 + 8y = -40

Next, complete the square for x^2 - 10x:  x^2 - 10x + 5^2 - 5^2.

and the same for y^2 + 8y:  y^2 + 8y + 16 - 16

Substituting these results into x^2 - 10x + y^2 + 8y = -40, we get:

x^2 - 10x + 5^2 - 5^2 y^2 + 8y + 16 - 16 = -40.

Next, rewrite x^2 - 10x + 25 and y^2 + 8y + 16 as squares of binomials:

Then x^2 - 10x + 5^2 - 5^2 y^2 + 8y + 16 - 16 = -40 becomes:

(x - 5)^2 + (y + 4)^2 - 25 - 16 = -40, or:

(x - 5)^2 + (y + 4)^2 = 1

This equation has the form (x - h)^2 + (y - k)^2 = r^2, where (h, k) is the center and r is the radius.  Matching like terms, we get h = 5, k = -4 and r = 1.

The center of this circle is (5, -4) and the radius is 1.

6 0
3 years ago
Read 2 more answers
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