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Lubov Fominskaja [6]
3 years ago
10

How many solutions does the system of equations have? x - 3y = 15 and 3x - 9y=45

Mathematics
1 answer:
pantera1 [17]3 years ago
8 0
For the answer to the question above asking how many solutions does the system of equations have? y - 6x = -3 and 4y - 24x = -16. The answer is y - 6x = -3 -6x + y = -3 6x - y = 3 
 4y - 24x = -16 -24x + 4y = -16 24x - 4y = 16 reduces to 6x - y = 4 
and this has no solutions
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Henry received $500 for his birthday which he intends to invest in an account that pays simple interest at the rate of 12% per y
Mila [183]

Answer:

$560

Step-by-step explanation:

Given that :

Principal, P= $500

Interest rate, r = 12% per year

Amount in account after 1 year

Time = 1 year

Using the relation :

A = P(1 + rt)

A = final amount in account

A = $500(1 + 0.12(1))

A = $500(1 + 0.12)

A = $500(1.12)

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3 0
2 years ago
It is given that D is inversely proportional to v m
Darina [25.2K]

Answer:

Step-by-step explanation:

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8 0
3 years ago
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S_A_V [24]
So you cant have a decimal in your divisor which means the problem sill become 18215/7 if that helps
8 0
3 years ago
Find the median.<br> 2, 20, 19, 15, 11,9,7,1<br> OA. 10<br> OB.<br> 10.5<br> c. 19<br> D. 20
pickupchik [31]

Answer:

A. 10

Step-by-step explanation:

First put the numbers in order from least to greatest then find the two numbers in the center of that since there is an even number of numbers there will be two the add and divide by two and you get 10.

1,2,7,9,11,15,19,20

9+11=20

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3 0
3 years ago
Read 2 more answers
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Elza [17]

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Step-by-step explanation:

When you go up any number of units, you add it to the y-coordinate. So -3 + 7 = 4. That would make it, (2,4). The next step would be reflecting it across the y-axis. And whenever you reflect across the y-axis, the x-coordinate always changes.

3 0
3 years ago
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