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3 years ago

Help pleaseee just with the part circled

Mathematics

1 answer:

icang [17]3 years ago

7 0

Answer:

the top one is $12.

Step-by-step explanation:

simple: 48÷4=12 because 4×10=40.

4×2=8. 40+8=48 which is the amount of money it costs, so add the 2 factors that aren't 4 to get your answer. (division is similar to reverse multiplication)

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3 years ago

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2 years ago

Find the equation of the line using the point-slope formula. Write all the final equations

vivado [14]

Answer:

$y=\frac{1}{2}x+\frac{5}{2}$

Step-by-step explanation:

We are going to find the slope by lining up the points vertically and subtract, then put 2nd difference over first.

Also you could just use $\frac{y_2-y_1}{x_2-x_1}$ . It is the same thing.

( 5 , 5)

-( 1 , 3)

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

4 2

So the slope is 2/4 or 1/2 after reducing.

The point-slope form a line is

$y-y_1=m(x-x_1)$ with a point on the line $(x_1,y_1)=(1,3)$ given and with slope $m=\frac{1}{2}$ given.

$y-3=\frac{1}{2}(x-1)$

We are going to solve this for y and simplify what we can because our goal is y=mx+b; this is slope-intercept form. It is called that because it tells us the slope,m, and the y-intercept,b.

Distribute:

$y-3=\frac{1}{2}x-\frac{1}{2}$

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Simplify:

$y=\frac{1}{2}x+\frac{5}{2}$

4 0

3 years ago

Help pleaseee just with the part circled ​

Help pleaseee just with the part circled