Printer ink cartridges cost $19 each. The company that sells the ink cartridges charges a flat shipping rate of $7.50, no matter how many ink cartridges you buy.
Write an algebraic expression that describes the total cost for a single order of `x`, cartridges.
The algebraic expression that describes the total cost for a single order of x cartridges is:
19x + 7.50
To simplify 3(8 - 5x) + 2x, we need to distribute the 3 to each term inside the parentheses:
3 * 8 - 3 * 5x + 2x
This simplifies to:
24 - 15x + 2x
Combining like terms:
24 - 13x
So, the simplified expression is 24 - 13x.
Evaluate the expression `3b-ac` when `a\ =\ -2`, `b\ =3`, and `c=0.5`
To evaluate the expression 3b - ac with a = -2, b = 3, and c = 0.5, substitute the given values into the expression:
3b - ac
= 3(3) - (-2)(0.5)
= 9 - (-1)
= 9 + 1
= 10
Therefore, when a = -2, b = 3, and c = 0.5, the value of the expression 3b - ac is 10.
evaluate the expression 3b-ac when a = -2,b=3 and c=0.5
To evaluate the expression 3b - ac with a = -2, b = 3, and c = 0.5, substitute the given values into the expression:
3b - ac
= 3(3) - (-2)(0.5)
= 9 - (-1)
= 9 + 1
= 10
Therefore, when a = -2, b = 3, and c = 0.5, the value of the expression 3b - ac is 10.
Evaluate the expression 5x^2+2y when x=-3and y =0.25
To evaluate the expression 5x^2 + 2y with x = -3 and y = 0.25, substitute the given values into the expression:
5x^2 + 2y
= 5(-3)^2 + 2(0.25)
= 5(9) + 0.5
= 45 + 0.5
= 45.5
Therefore, when x = -3 and y = 0.25, the value of the expression 5x^2 + 2y is 45.5.
3mn/-2p when m = 1/3, n=-3 and p=3
To evaluate the expression (3mn) / (-2p) with m = 1/3, n = -3, and p = 3, substitute the given values into the expression:
(3mn) / (-2p)
= (3 * (1/3) * (-3)) / (-2 * 3)
= (-3) / (-6)
= 1/2
Therefore, when m = 1/3, n = -3, and p = 3, the value of the expression (3mn) / (-2p) is 1/2.