07/07/16

Value Mixture Problem
A silversmith mixed 15 g of a 60% silver alloy with 70 g of a 25% silver alloy. What is the percent concentration of the resulting alloy? (Round your answer to one decimal place.)
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07/07/16

A tree grows 1/4 foot in 1/12 year.
Part A. Write rate at which this tree grows as a fraction.   Part B. How many feet does the tree grow in 1 year?   Can you explain this all to me? I really don't know how to do this.... more
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07/07/16

How can I solve this problem
A sphere is inscribed in a right circular cone whose slantheight has a length equal to the diameter of its base. Whatis the length of the radius of the sphere if the slant heightand the diameter of... more
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07/07/16

How can I solve for x in 3y=3x+1
Solve the literal equation for x.   3y=3x+1  
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07/06/16

How can i solve this problem
At the Pizza Dude restaurant, a 12-in. pizza costs $3.40to make, and the manager wants to make at least $2.20from the sale of each pizza. If the pizza will be sold bythe slice and each pizza is cut... more
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07/06/16

the sides of a triangle are in the ratio 3:4:5. If the longest side of the triangle is 40 in longer than the shortest side, find the perimeter of the triangle
how to solve 
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07/06/16

A question on time
here is the question: Freida must take a 4-hour examination containing 200 questions, 50 of which are math questions. Twice as much time should be allowed for each math question as for each other... more
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07/06/16

your savings account had a balance of $2525 and on your summer vacation you plan to spend $80 per week.
Write a linear equation that modles this problem. What is your balance after your 8 week summer vacation?
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07/06/16

If the graph of one quadratic opens upward and the other opens downward, what is the greatest possible number of intersections for these graphs?
I need help to solve this word problem
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07/05/16

Solve the inequality
Juan received a 100, 95 and 87 on his first three exams. What score range can he receive and maintain an A average (93 or better) on his exams.
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07/05/16

Translate to a system of equations but do not solve.
The perimeter of a standard tennis court when used for doubles play is 288ft. The width is 22 ft less than the length. Find the dimensions.   choose the system of equations that is a mathematical... more
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07/05/16

a falcon flew 70 miles in 3 hours what is the speed of the falcon in meters per second?
a falcon flew 70 miles in 3 hours what is the speed of the falcon in meters per second?
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07/05/16

The missing number in the Pythagorean Triple: 3, 4,
a. equation image indicatorb. 6c. 8d. 12e. equation image indicatorf. 5
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07/05/16

what is the solution of [x + 7]<_15
can you help me through the steps of this problem? please?  
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07/04/16

What is the equation of the line through (2,3) and (0, -1)
I need an answer ASAP thank you.
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07/04/16

word problem math
Following the birth of a? child, a parent wants to make an initial investment Upper P0 that will grow $40,000 for the? child's education at age 18. Interest is compounded continuously at 7?%.What... more
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07/04/16

If Jan can weed the garden in 2 hours and her husband can weed it in 1 hour and 30 minutes, how long does it take them to weed it together?
Work problem where it is set up using fractions
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07/04/16

What is the best course grade your friend can earn? What is the minimum score would your friend would need on the final to earn a 75% for the course?
A friend has a 79% average before the final exam for a course. That score includes everything but the final, which counts for 30% of the course grade. Give answers accurate to at least one decimal... more
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07/04/16

The Mendes family bought a new house 11 years ago for $119,000. The house is now worth $176,000. Assuming a steady rate of growth, what was the yearly rate of a
need help
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07/04/16

math problem help
The radioactive decay of a substabce is A(t)=600e^-.0013t.   A. How many grams of substance was there initially?   B. How much is left after 50 years?   C. What is the half-life?  
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07/04/16

Simplify the expression. Do not assume the variables represent positive numbers.
So my problem is this,   sqrt(4x^2)   the instructions are in the title.  I believe the answer is 2x but I am told this is wrong.  not sure how to solve the problem when not assuming the... more
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07/04/16

Angle equation help
How can I make an equation relating the angles of a quadrilateral to the sum of interior angles?
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07/02/16

where is gym
Ping lives at the corner of 3rd Street and 6th Avenue. Ari lives at the corner of 21st Street and 18th Avenue. There is a gym the distance from Ping's home to Ari's home.Where is the gym?
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07/02/16

How would I solve this problem?
Mrs. West is 14 years younger than her aunt. If Mrs. West's age in years is as much below 60 as her aunt's age is over 40, how old is each?   I can understand the first sentence and end up... more
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07/02/16

how to simplify ?
How to simplify with zero as an exponent.     (-4)^0-(-4)^1
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