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trapecia [35]
3 years ago
10

What is the solution of the following system of equations 5x+7y=3, 2x=-3y+1

Mathematics
2 answers:
ANTONII [103]3 years ago
7 0

Answer:

point form: (2,-1)

equation form: x=2,y=-1

Step-by-step explanation:

vodomira [7]3 years ago
4 0

Answer:

X = 2 and y = -1

Step-by-step explanation:

add 3y to both sides of 2x = -3y + 1

2x + 3y = 1

5x + 7y = 3

multiply (2x + 3y = 1) by -5 and (5x + 7y =3) by 2

-10x - 15y = -5

10x + 14y = 6

-y = 1

y = -1

plug in y

2x = -3(-1) + 1

2x = 4

divide by 2

x = 2

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A rare book was purchased for $200 and then it was sold for $400. What percent increase was that
hram777 [196]

Answer:

100% increase

Step-by-step explanation:

8 0
3 years ago
DO NOT ANSWER IF YOU DO NOT KNOW
aliina [53]

Answer:

By saying "paying the same rate"

I believe you want to know for example when two people are buying a product how to know if they are paying the same amount.

If so then there are a couple of factors at play.

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3 0
3 years ago
Matsu wants to measure the dimensions of her vegetable garden. Which unit of measurement should she use to eliminate the need to
Sati [7]
The complete question is
<span>Matsu wants to measure the dimensions of her vegetable garden. Which unit of measurement should she use to eliminate the need to write the values in scientific notation?
inches
feet
cups
tons

we know that

case a) inches
</span><span>is a measure of length used for small dimensions
</span><span>
case b) feet
</span>is a measure of length commonly used for dimensions of land, rooms, houses, etc.<span>

case c) cups
is not a measure of length

case d) tons
</span>is not a measure of length
<span>
therefore

the answer is the option
feet


</span>
6 0
3 years ago
Read 2 more answers
Show how you solve the following two equations:<br> x – 15 = 32<br> x – 7.2 = 23.1
Lapatulllka [165]
Х - 15 = 32
х = 32 + 15
x = 47 (answer)
-----------------------
47 - 15 = 32
        32 = 32

х - 7.2 = 23,1
х = 23,1 + 7.2
х = 30,3 (answer)
---------------------------
30,3 - 7,2 = 23,1
         23,1 = 23,1
3 0
3 years ago
How do you find 55% of 140?
yaroslaw [1]
If you type in calculator on google click the buttons and do 140 divided by 55% but the long way to do a percentage problem is to find 1% of the number you start off with and multiply it by the percentage so in this case 1% of 140 would be 1.4 and multiply that by 55 t
3 0
3 years ago
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