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MATH SOLVE
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Mrs. Hernandez bought 18 pens for her class. Highlighters cost $3 each, and gel pens cost $2.50 each. She spent a total of $50. Use a system of equations to find the number of highlighters and gel pens Mrs. Hernandez bought.
General
2 months ago
Choose the graph that matches the following system of equations: 8x + 5y = −5 7x − 3y = 3 (6 points)
General
2 months ago
The function f(x)=3(2.5)^x is shown on the coordinate plane.Select from the drop-down menus to correctly describe the end behavior of f(x) . As x decreases without bound, the graph of f(x)_______(approaches y=0increases without bounddecreases without bound)As x increases without bound, the graph of f(x)_______(approaches y=0increases without bounddecreases without bound)
General
2 months ago
This graph shows a proportional relationship. What is the constant of proportionality? Enter your answer as a ratio in simplified form in the box.
General
2 months ago
The owner of an electronics store received a shipment of mp3 players at a cost of $64.25 each. If he sells the mp3 players for $99.99 each, what is the percent of markup? Round the nearest whole percent
General
2 months ago
What is 2114% expressed as a fraction?
General
2 months ago
The total cost to pay for parking at a state park for the day and rent a paddleboat are:1 hour $17, 2 hours $29, 3 hours $41, 4 hours $53.A: find the cost to park for a day and the hourly rate to rent a paddleboat.B: What will Lin pay if she rents a paddleboat for 3.5 hours and splits the total cost with a friend? Explain.
General
2 months ago
The vertex form of the equation of a parabola is y=2 (x+4)^2-21. What is the standard form of the equation?
General
2 months ago
There can be no more than 835 people in the concert hall. What inequality represents the number of people, p, allowed in the concert hall? Drag and drop the appropriate symbol to correctly complete the inequality. (p [ ] 835> < ≤ ≥
General
2 months ago
One of the largest flowers, the Rafflesia, weighs about 15 lb. How many Rafflesia flowers can be placed in a container that can hold a maximum of 240 lb?
General
2 months ago
What is the point slope form of a line with slope 4/5 that contains the points -2,1
General
2 months ago
When performing today's experiment, your lab partner decides to add all the reagents into one beaker instead of two separate beakers. after adding everything together and waiting a significant amount of time, you see no reaction occur. what was the problem?
General
2 months ago
Write the equation in spherical coordinates. (a) 4z2 = 5x2 + 5y2 (b) x2 + 3z2 = 4
General
2 months ago
Name the set(s) of numbers to which 1.18 belongs.a. rational numbersb. rational numbers, irrational numbersc. natural numbers, whole numbers, integers, rational numbers
General
2 months ago
At city high school,the sophomore class has 60 more students than the freshman class.the junior class has 50 fewer students than twice the students in the freshman class.the senior class is three times as large as the freshman class.if there are a total of 1,424 students at the city high school,how many students are in the freshman class?
General
2 months ago
What value of z divides the standard normal distribution so that half the area is on one side and half is on the other? round your answer to two decimal places?
General
2 months ago
The probability that an individual is left-handed is 0.16. in a class of 10 students, what is the mean and standard deviation of the number of left-handers in the class?
General
2 months ago
Use spherical coordinates. evaluate (x2 + y2) dv e , where e lies between the spheres x2 + y2 + z2 = 1 and x2 + y2 + z2 = 25.
General
2 months ago
The table gives estimates of the world population, in millions, from 1750 to 2000. year population year population 1750 790 1900 1650 1800 980 1950 2560 1850 1260 2000 6080 (a) use the exponential model and the population figures for 1750 and 1800 to predict the world population in 1900 and 1950. compare with the actual figures
General
2 months ago
How is the distance formula like the pythagorean theorem explain?
General
2 months ago
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