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Suppose that cities X and Y are exactly 750 miles apart. On a certain day, Anne leaves from city X traveling at a rate of 75 mph towards city Y. At the same time, and taking the same route, Bob leaves city Y traveling at a rate of 50 mph towards city X. How far from city Y will Anne and Bob pass each other?
a) Write an equation to help you solve this problem. You may use variables d for distance or t for time.
Answer:
b) Solve this equation and use it to find d, the distance from city Y at which they pass. Include the appropriate units in your answer.
Answer: d=
A jeweler has 7 rings, each weighing 11 g, made of an alloy of 15 percent silver and 85 percent gold. He decides to melt down the rings and add enough silver to reduce the gold content to 70 percent. How much silver should he add?
a) Write an equation for the total amount of gold in the mixture. Use s to represent the amount of silver added.
b) Solve this equation for s. Include the appropriate units in your answer.
Answer: help (units)
Evaluate integral of [z/(z^2 + 2z + 5)] dz , c = unit circle ,Z here is a complex number isn't the integral value be zero because z = -1+2i & z = -1-2i both singularities lies outside the contour ?
the aera of a rectangular wall in a classroom is 126 square feet. it lenght is 3 feet shorter than three times its width. find the length of the wall of the classroom.
A total of 393 tickets were sold for the school play. They were either adult tickets or student tickets. The number of student tickets sold was two times the number of adult tickets sold . How many adult tickets were sold?
The carpenter is building a rectangular room with a fixed perimeter of 328ft.what dimensions would yield the maximum area?What is the maximum area?
the elevation of Death Valley, California. If Death Valley is 282 ft below sea level, find the elevation of Mount Whitney.
Explain. Provide your classmate's with one or two solutions with which they must create a quadratic equation.
Two distinct even numbers are selected at random from the first ten even numbers greater than zero.
There is a diamond on the right of a diamond. What are the three cards. Please, show wok and solution.
evaluate the tangent line approximation of the two values and compare with the true valuefind the tangent line
out of 500 randomly chosen grocery shoppers, 320 like cheerios and 380 like total. 275 of the grocery shoppers liked both cheerios and total.
There is a probability of 0.08 that a vaccine will cause a certain side effect. Suppose that a number of patients are inoculated with the vaccine.
Find a linear model for the cost, , of waste collection as a function of the number of kilograms, .
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