Answer:
Yes, 4 + -4 = 0.
Think of it like a number line: The number four is 4 units to the right of the center which is 0, and the number negative four is 4 units to the left of the center. When you add them together, those distances cancel out, and you just get 0.
Answer:
(-3, 0)
Step-by-step explanation:
Solve by elimination. Multiply the first equation by -2 and then add the two equations together.
Yes it would be 59. 59 is the correct answer. Hopefully
Answer: 5
Step-by-step explanation:
-7x-3x+2=-8x-8
-10x+2=-8x-8
-10x+8x=-8-2
-2x=-10
x=-10/-2
x=5
<h2>
Therefore she must swim =6.5 miles the seventh week</h2>
Step-by-step explanation:
Given , Rebecca plans to swim an average of 5.5 miles per week.
So, she has swum 2 miles the first week ,7 miles the second week ,6 miles the third week ,9 miles the fourth week ,5 miles the fifth week and 3 miles the sixth week.
Total she has swum =(2+7+6+9+5+3) miles in six week.
=32 miles
To reach her goal she has to swim =(5.5×7)miles= 38.5 miles at the end of seventh week.
Therefore she must swim =(38.5 - 32) miles =6.5 miles the seventh week
