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sergejj [24]
3 years ago
7

20 POINT QUESTION - PLEASE HELP!

Mathematics
1 answer:
mash [69]3 years ago
5 0
After 100 more minutes, the rate has gone from 30 to 80, increasing by 50. 100 divided by 50 is 2 so for every 2 minutes she is charged one dollar, but per minute the rate is 50 cents per minute. Hope this helps :)
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8.513 - 2.545 = ? <br><br> SHOW WORK <br><br> WILL GIVE BRAINLIEST PLEASE
Margaret [11]

Answer:  5.968

Step-by-step explanation:  5.968 + 2.545 = 8.513

4 0
3 years ago
Pls help you will get brainlist if ya do
lilavasa [31]
The x and y coordinate are switched
6 0
3 years ago
Margo's parents started a savings account when she started highschool. They put in $12,500 to start. If the account earns 7% sim
eduard

Answer:

probably bout like 4 dollars

Step-by-step explanation:

7 0
2 years ago
Can you please help me with this
Vitek1552 [10]

Answer:

log9

Step-by-step explanation:

Using the rules of logarithms

logx + logy = log(xy)

logx - logy = log(\frac{x}{y})

logx^{n} ⇔ nlogx

Given

2(log18- log3) + \frac{1}{2}log\frac{1}{16}

= 2(log(\frac{18}{3} ) ) + log(\frac{1}{16}) ^{\frac{1}{2} }

= 2log6 + log\frac{1}{4}

= log6² + log\frac{1}{4}

= log36 + log\frac{1}{4}

= log( 36 × \frac{1}{4} )

= log9

5 0
3 years ago
A is the point (-2, 0) and B is the point (0, 4).Find the equation of the straight line joining A and B.
Rus_ich [418]

Answer:

y = 2*x + 4

Step-by-step explanation:

We know that a linear function can be written as:

y = a*x + b

Where a is the slope and b is the y-intercept.

We know that if this line passes through the points (x₁, y₁) and (x₂, y₂) the slope can be written as:

a = (y₂ - y₁)/(x₂ - x₁)

So, here we know that our line must pass through the points (-2,0) and (0, 4)

Then the slope of this line is:

a = (4 - 0)/(0 - (-2))

a = 4/2 = 2

Then our line is something like:

y = 2*x + b

Now, to find the value of b we can use one of these two points, for example if we use the point (-2, 0), we know that, when x = -2, we must have y = 0.

0 = 2*(-2) + b

0 = -4 + b

4 = b

Then the equation for our line is:

y = 2*x + 4

6 0
3 years ago
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