Joanna has a total of 50 coins in her purse. • The coins are either nickels or quarters.
• The total value of the coins is $4.35.
Which system of equations can be used to determine the number of nickels, n, and quarters,
q, that Joanna has in her purse?
0.05n + 0.25q = 4.35
50n + 50q= 4.35
On +9= 4.35
50n + 50q = 4.35
On+q=50
0.05n +0.259 = 4.35
0.05n +0.25 = 50
n +9= 4.35

step-by-step explanation:

answer is 8x+24

area of vanessa's patio = length × width

given, length = (3x² + 5x + 10)

width = (x² - 3x - 1)

area of vanessa's patio = (3x² + 5x + 10)(x² - 3x - 1)

= 3x²(x² - 3x - 1) + 5x(x² - 3x - 1) + 10(x² - 3x - 1)

= 3x⁴ - 9x³ - 3x² + 5x³ - 15x² - 5x + 10x² - 30x - 10

= 3x⁴ - 4x³ - 8x² - 35x - 10

hence, expression of vanessa's patio = (3x⁴ - 4x³ - 8x² - 35x - 10)

fd

step-by-step explanation:

-8/2y-8=5/y+4-7y+8/y^2-16

we move all terms to the left:

-8/2y-8-(5/y+4-7y+8/y^2-16)=0

we can not solve this equation