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prohojiy [21]
3 years ago
13

Solve each proportion, round to one decimal place. 4/9=x/20

Mathematics
1 answer:
guapka [62]3 years ago
3 0

In order to solve a proportion you need to cross multiply, so you would do:

4x20 and 9xX and you would get...

9x=80

then divide by nine to get

x=8.8888888889

which is technically 8.9

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Viktor [21]
The answer is -1. First you distribute the 3. Then u distribute the 3 again to the parentheses. Then solve it from there

4 0
3 years ago
tell whether the system has one solution, infinitely many solutions, or no solution. x = -7y + 24 x + 7y = 32
mylen [45]
This system has no solution.
x = -7y + 24 can be rewritten as x = 24 - 7y
to simplify x + 7y = 32, we have to subtract 7y from both sides
x = 32 - 7y
Now, our system is as follows:
x = 24 - 7y
x = 32 - 7y


7 0
3 years ago
Point-Slope Form<br> *See photo*
Ne4ueva [31]

Answer:

y = 3x - 5

Step-by-step explanation:

We know that the equation 'y = 3x + ?' intersects the point (1, -2). This means that when x = 1, y = -2 in out equation above. To solve this just plug in the x and y values to get '?'.

y = 3x + ?\\-2 = 3(1) + ?\\-5 = ?

Now that we know '?' is -5, we write it back into slope intercept form, so our final answer is y = 3x - 5

4 0
2 years ago
PLEASE HELPPP
Setler79 [48]
There are three prime numbers and 3 even numbers on a number cube, so the probability of each is 3/6 = 1/2.
7 0
3 years ago
a taxi rider must pay 15000 VND for 1km in the first 10km, when exceeding 10km, they will pay them 14000 VND for each subsequent
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Answer:

Số tien:S =150000+(x-10)14000

Step-by-step explanation:

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