Answer:
$1.98/ lbs
Step-by-step explanation:
To find the unit cost, take the total cost and divide the the number of units purchased
$9.90/5 lbs
$1.98/ lbs
Answer:
7x+12
Step-by-step explanation:
since its neg, it take out { and } it no use.
if its like that, you add it.
so the equation: 3x+4x
that is 7x
+12 is after
so you do 7x+12
you can't simp it. So that is the answer
100% SURE
Answer:
There are 2 solutions: x = -5, 9.
Step-by-step explanation:
(x-2)^2 =49
Take square roots of both sides:
x - 2 = +/- 7
So x - 2 = 7 gives x = 9 , and
x - 2 = -7 gives x = -5.
Answer:
yup it passes the line test
Step-by-step explanation:
Answer:
so looks like they want you to solve each of them first, then plot them on the number lines.
1) x+8 >= 18
subtract 8 from each side
x >= 10
so for this one you would plot the point (a closed circle, since it's greater than or equal to) on the ten, and draw an arrow pointing to the right
2) x-1 > 6
add 1 to each side
x > 7
for this one you would plot an open circle on the 7 and draw an arrow to the right
3) -7+x >= -8
add 7 to each side
x >= -1
for this one you would plot a closed circle on the -1 and draw an arrow to the right
4) x-1 <= 3
add 1 to each side
x <= 4
for this one you would plot a closed circle on the 4 and draw an arrow to the left