Jenny purchased a prepaid phone card for $20. The long distance calls cost 10 cents a minute using this card. Jenny used her card only once to make a long distance phone call. If her remaining credit on the card is $18.90. How many minutes did her call last?
A table and chairs cost $660 . The table costs $90 less than the chairs. What is the cost of the chairs?
Solve the inequality for Z. 8z + 5 ≤ 7/3 z + 2 See attached file for full problem description.
Evaluate the expression: 2t-1 given that -3t+9 = 6 See attached file for full problem description.
Simplify the following expression: -7t - t Please show all steps and elaborate.
Solve by graphing. Indicate whether each system is independent, dependent or inconsistent. 1. y= 2x-1 x+y= 2 2. 2x-3y=12 3y-2x= -12 3. 3x-y=4 3x-y=0 Solve each system by the substitution method. Indicate whether each system is independent, dependent or inconsistent 4. x-y=3 3x-2y=3 5. 3y=x+5 3x-9y= -10 6
See attached file for full problem description. 1. Solve. 6x - 0.37 = 5(x - 0.28) 2. Identify the base in the statment "50% of 300 is 150." 3. Identify the rate in the statment " 260 is 52% of 500." 4. The length of one of the equal legs of an isosceles triangle is 8 cm less than 4 times the length of the base.
Need detailed instruction on how to work Use mathematical induction to prove that : 1*2+2*3+3*4+....+n(n+1)(n+2)/3 for all n >_1 and (2) Find d=gcd (721 , 448), find integers s and t with d=721s + 448t, and put the fraction 448/721 in lowest terms.
7. The point (1,0) lies in the region represented by the inequality x > y + 5. a. True b. False 8. The point (5,5) lies in the region represented by the inequality x > y a. True b. False 9. The system of inequalities |x + 3| < 2 has no solution a. True b. False 10. The system of linear inequalities |x
1. The slopes of the lines parallel to X axis and Y axis are a. 0 and inf b. inf and 0 c. 1 and -1 d. 0 and 0 2. The slope of the line parallel to the line y = 10x and passing through origin a. 10 b. (0, 10) c. 0 d. 1 3. The slope of the line perpendicular to x = 10 is a. 10 b. 0 c. 1 d. inf
(1) Sally worked 48 hours this week . Her overtime rate is 1.5 times the regular rate. When calculating gross pay with overtime, there are two options: Option 1. ( total regular hours X hourly rate ) + ( overtime hours X overtime rate ) = gross pay OR Option 2. ( total number of hours worked X the ho
I need to solve the following system of three equations and describe the methods used could you please assist and explain it in detail so I can apply it to the other problems. eq1: X + Y + Z = 6 eq2: 2X - Y + 3Z = 8 eq3: 3X - 2Y - Z = -17
Please address the following question by answering the following: Suppose that G is a finite group of even order 2n. Prove or disprove that the number of cyclic subgroups of G is at most n + 2.
7(3x+4) = 8(2x+5) + 13 2(x-3) - 3(x+5) = 3(x-2) - 7 3x - 5(3x-7) = 2(x+9) + 45 Geometry: The length of a rectangular playing field is 5 ft less than twice its width. If the perimeter of the playing field is 230 ft, find the length and width of the field. Science and medicine: A bicyclist rode into the country for 5
Use the Distributive Property to remove the parentheses from the following expression (-1-u+4z) (-2)
Solve each compound inequality. State the solution set using interval notation and graph it. x<= 0 and x + 6 > 3
Graph, on the number line, all points for which |x + 6| ≤ 3.
|x - 2| ≤ 2
Please solve 2|u+1| - 1 ≥ 9 Please show step by step solution on how this is solved.
Y ≥ 2x +9 y ≤ -9x - 5
Please see the attached file for the fully formatted problems.
Capacitive reactance X_c in an electrical circuit to an alternating current is given by: (Please see attached) where f is frequency of the current and C is capacitance of the circuit. Solve for f.
Solve the Linear inequality. Solve for t. -5t - 5 > -15
Solving a linear inequality: -7w - 12 ≥ 2 See attached file for full problem description.
Hello, can you please help me solve this inequality with absolute values? -5|t-2| ≤ -51 Thank you for the help.
What was the rate of rainfall for each of the two storms if the sum of the two rates was 70ml per hour?
Two rainstorms occurred in one week in a certain area. The first storm lasted 25 hours, and the second storm lasted 35 hours, for a total 2050ml of rain. What was the rate of rainfall for each of the two storms if the sum of the two rates was 70ml per hour?
Graph the solution to the system of inequalities: Y < -3x+2 Y< 2x+9 keywords: inequality
Logb 1/a = -logb a logb a = 1/loga b Please see the attached file for the fully formatted problems. keywords: logs, log
1.Graph x+4Y=5 2. Graph x-2y=6 3. How do I find the slope of the line with points (0,0) (2,4) 4. How do I find the slope of the line with points (-3,1) (2,-2) 5. How do I graph the line with points & slope (-2,5) slope -1 6. How do I draw l1 (L sub 1) through (-4,0) (0,6) What is the slope of any line paral
Given ax + by + c = 0 Rewrite the equation with only y on the LHS. Also find the value of y for x=20, a=-1, b=5, c=0.