Answer:
63x + 18
Step-by-step explanation:
9 multiply 7x to give 63x
and 9 multiplies 2 to give 18
Answer:
-5 < x < 5
Step-by-step explanation:
|x| < 5
This can be split into two cases: x < 5 and -x < 5 because |x| could be either x or -x depending on whether x is positive, negative, or 0. Solving the second one we get x > -5 so the answer is -5 < x < 5.
Answer:
m= 3 b= -2
Step-by-step explanation:
The formula is y=mx+b
Plugging in the numbers, we get y=3x-2. When we change the subtraction to addition, we get y=3x+ -2.
Therefore, your answers are m=3 and b= -2
Hope this is helpful to you!
Answer:
$14
Step-by-step explanation:
3.50/2= 1.75
1.75*8= 14
Oyebolatoba Beginner
Let d = # digital cameras
Let m = # manual cameras
d + m = 240 equation 1
(d-82) = 3(m-26) equation 2
d - 82 = 3m - 78
d - 3m = 82 - 78
d - 3m = 16 equation 2 simplified
We have two equations with 2 unknowns:
d + m = 240
d - 3m = 16 subtract equation 1 from equation 2
---------------
-4m = -224
m = -224/-4
m = 56
d + m = 240
d = 240-m
d = 240-56
d = 184
He started with 184 digital cameras and 56 manual cameras