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Ad libitum [116K]
3 years ago
10

Plz help ! solve the following system of equations 5x+7y=23 9x+4y=7

Mathematics
1 answer:
Agata [3.3K]3 years ago
8 0

Answer: x = -1 y = 4  I got my answer by solving for one variable in the first equation and then substituting what I got for that variable into the second equation in place of that aforementioned variable then solving for the last variable.

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Cómo resuelvo estás ecuaciones<br>6×-5y=-3<br>3×+2y=12​
jeka57 [31]

Answer:

Y vale 3 x vale 2 ponme

Step-by-step explanation:

5 0
3 years ago
Brandon and Nolan work at a furniture store. Brandon is paid $235 per week plus 6% of his total sales in dollars, x, which can b
Helen [10]

The value of "x" is 14400 dollars that will make their weekly pay the same

<em><u>Solution:</u></em>

Given that,

<em><u>Brandon is paid $235 per week plus 6% of his total sales in dollars, x, which can be represented by g (x) =235 + 0.06x</u></em>

g(x) = 235 + 0.06x ----- eqn 1

<em><u>Nolan is paid $667 per week plus 3% of his total sales in dollars, x, which can be represented by f(x ) = 667 + 0.03x</u></em>

f(x) = 667 + 0.03x ----------- eqn 2

<em><u>Determine the value of x, in dollars, that will make their weekly pay the same</u></em>

For their weekly pay to be same, g(x) = f(x)

235 + 0.06x = 667 + 0.03x

Move the variables to one side and constants to other side

0.06x - 0.03x = 667 - 235

0.03x = 432

x = 14400

Thus value of "x" is 14400 dollars that will make their weekly pay the same

6 0
3 years ago
I need help with letter j please
Leona [35]
X = 10

Since 23 - 13 = 10

4 0
3 years ago
Read 2 more answers
How to find the surface area of a 3D shape?
monitta
This depends on what the shape is.

Cube: 6(l*w)
Rectangular Prism: 2(lw) + 2(wh) + w(lh)

It goes on....
8 0
2 years ago
Amira wants to ride her bicycle 48 miles this week. She has already ridden 18 miles. If she rides for 5 more days, write and sol
sergij07 [2.7K]
Answer is 6 miles per day
Answer is equation 48 = (x)(5) + 18

Step by step

You can use y intercept equation
y = mx + b

y = 48 total miles
m = rate of miles unknown
x = 5 days
b = starting point of 18 miles already ridden

48 = (x) (5) + 18

48 = 5x + 18

Subtract 18 from both sides to isolate the variable

48 - 18 = 5x + 18 - 18

30 = 5x

Now divide both sides by 5 to solve for x

30/5 = 5/5 x

X = 6 miles per day

Check your work, substitute 6 for x in your equation

48 = (6) (5) + 18
48 = 30 + 18
48 = 48

Problem solved!!
5 0
1 year ago
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