Answer:
Solve for z by simplifying both sides of the equation, then isolating the variable.
Exact Form:
z = 63/2
Decimal Form:
z = 31.5
Mixed Number Form:
x = 31 1/2
3x-18 is less than -90
First, you add 18 to both sides of the inequality (getting 3x is less than -72). Then you divide by 3 on both sides giving you your answer x is less than -24
Standard form = 3.0098 × 10 power 4
Significant figures = 30100
The cost of turkey sandwiches is $3 and chef salads costs $2.
Two equations can be derived from this question:
12t + 44s = 124 equation 1
12t + 58s = 152 equation 2
Where:
t = turkey sandwiches
s = chef salads
In order to determine the value of s, the following steps would be taken:
Subtract equation 1 from 2
14s = 28
Divide both sides of the equation by 14
s = $2
Substitute for s in equation 1
12t + 44(2) = 124
12t = 88 = 124
12t = 124 - 88
12t = 36
t = 3
To learn more about simultaneous equations, please check: brainly.com/question/23589883
