Answer: dang that looks hard, are you actually gonna do that
Step-by-step explanation:
The answer is 10.
4 a + 5 b when a = 4 and b = - 1.2
Answer:
The correct option is D.
Step-by-step explanation:
The given equation is

According to the addition property of equality
and
are equivalent equations.
Use addition property of equality, add 3x on both the sides.


Therefore Sam's work is incorrect because he make calculation mistake.
According to the subtraction property of equality
and
are equivalent equations.
Use subtraction property of equality, subtract 5x from both the sides.


Therefore Roy's work is correct because he used subtraction property.
Option D is correct.
Terms : 7 , -5x , 1
like terms : 7 and 1
constants : 1
coefficients : -5
Answer:
It will cost $9.80
Step-by-step explanation:
To find the cost, you have to divide the cost for 7 prints and then multiply it by 49.
1.40÷7= 0.2
0.2×49= 9.8
The answer that you get is the total cost for 49 prints.