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Scilla [17]
2 years ago
5

Use a graph to slove the equation 2x+3=4​

Mathematics
1 answer:
ANTONII [103]2 years ago
5 0

Answer:

x=0.5=1/2

Step-by-step explanation:

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The ratio of the number of A's in the class to B's in the class was 2:5. How many people got A's if there were 40 people who got
Umnica [9.8K]

Answer:

16 students got an A

Step-by-step explanation:

Set up an equation to compare the ratio to the scores:

\frac{2}{5} = \frac{x}{40}

Cross multiply:

80 = 5x

Divide each side by 5:

x = 16

Now, check if \frac{16}{40} = \frac{2}{5}

16/8 = 2

40/8 = 5

The ratios are the same! Therefore, 16 students got an A!

Hope this helps! Feel free to contact me if you have any questions :)

7 0
3 years ago
Read 2 more answers
Solving Exponential Equations (lacking a common base)<br> (0.66)^k=9
Alexandra [31]

Answer:

k = log9 / log 0.66

k = 5.3

Step-by-step explanation:

Please always remember that, when an exponential equation is given with different bases, the best approach is to take log of both sides.

If you have a calculator handy, that would be pretty fast and easy.

0.66 ^ k = 9

Take log of both sides:

klog 0.66 = log 9

k = log 9 / log 0.66

k = 0.954 / - 0.18

k = -5.3

Maths is fun, let's keep learning

3 0
3 years ago
Daniel loved books and reads 14 pages in 6 minutes
storchak [24]

Answer:

???

Step-by-step explanation:

8 0
3 years ago
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Which of these is not a method used to calculate finance charges?
ElenaW [278]

Answer:

C is the answer usual balance.

3 0
3 years ago
84 times 0.24 area model
CaHeK987 [17]
I'm not sure if I get what you mean, because I don't think I remeber what an area model is. But if it literally means making a model to describe the area, you could draw a square and put 84 on the length or the width and the o.24 on the other. Show that length times width = area. And then multiply. But if I am right, that's not what you are looking for, huh?
4 0
3 years ago
Read 2 more answers
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