He had a profit of $2. Made a $1 each time he sold it.
Answer:
1. 480 inches^3
2. 6 inches tall, 8 inches wide, and 10 inches ong
Step-by-step explanation:
Answer:
x=24
Step-by-step explanation:
Answer:
A term is a mathematical expression. In 3x+5+f, there are 3 terms.
Step-by-step explanation:
you get it?
Answer:
(-4;2)
Step-by-step explanation:
1. if y=1/2 x+4, then 2y=x+8; it is possible to re-write as x-2y+8=0;
2. if x+4y=4, it is possible to re-write it as x+4y-4=0;
3. if x-2y+8=0 and x+4y-4=0, then x-2y+8=x+4y-4; ⇒ -2y+8=4y-4; ⇒ 6y=12; ⇔ y=2.
4. if y=2, then it is possible to substitute its value into any equation given in the condition:
x+4y=4 (substitution y=2); ⇒ x+8=4; ⇒ x= -4.
5. finally x= -4; y=2. It means (-4;2)
PS. the suggested solution is not the only way to resolve this task.
