6,938 Answered Questions for the topic mathematics

10/24/21

What is the rate of the rowing team in calm water and the rate of the current.
A rowing team rowing with the current traveled 48 km in 4 h. Rowing against the current, the team rowed 16 km in the same amount of time. Find the rate of the rowing team in calm water and the rate... more
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10/24/21

A motorboat traveling with the current went 70 mi in 5 h. Traveling against the current, it took 7 h to travel the same distance. Find the rate of the boat in calm water and the rate of the current.
A motorboat traveling with the current went 70 mi in 5 h. Traveling against the current, it took 7 h to travel the same distance. Find the rate of the boat in calm water and the rate of the current.
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10/24/21

Find the rate of the plane in calm air and the rate of the wind. (Round your answers to one decimal place.)
A jet plane flying with the wind went 910 mi in 2 h. Flying against the wind, the plane could only fly 700 mi in the same amount of time. Find the rate of the plane in calm air and the rate of the... more
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Mathematics Math Algebra 1 Algebra 2

10/24/21

Flying with the wind, a plane flew 480 mi in 3 h. Against the wind, the plane required 4 h to fly the same distance. Find the rate of the plane in calm air and the rate of the wind.
Flying with the wind, a plane flew 480 mi in 3 h. Against the wind, the plane required 4 h to fly the same distance. Find the rate of the plane in calm air and the rate of the wind.
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Mathematics Math Algebra 1 Algebra 2

10/24/21

What is the cost per pound of the cinnamon tea and of the spice tea.
A merchant mixed 10 lb of a cinnamon tea with 2 lb of spice tea. The 12-pound mixture cost $19. A second mixture included 14 lb of the cinnamon tea and 8 lb of the spice tea. The 22-pound mixture... more
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Mathematics Math Algebra 1 Algebra 2

10/24/21

What is the cost per unit of gas.
During one month, a homeowner used 400 units of electricity and 100 units of gas for a total cost of $314. The next month, 300 units of electricity and 250 units of gas were used for a total cost... more
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Mathematics Math Algebra 1 Algebra 2

10/24/21

What is the cost per foot of redwood and of pine.
A carpenter purchased 50 ft of redwood and 70 ft of pine for a total cost of $253. A second purchase, at the same prices, included 100 ft of redwood and 60 ft of pine for a total cost of $394. Find... more
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Mathematics Math Algebra 1 Algebra 2

10/24/21

What does the delicatessen charge for a turkey sandwich? What is the charge for an order of french fries?
he employees of a hardware store ordered lunch from a local delicatessen. The lunch consisted of 4 turkey sandwiches and 7 orders of french fries, for a total cost of $18.90. The next day, the... more
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Mathematics Math Algebra 1 Algebra 2

10/23/21

Focus Problem- Math
For 87 days in the spring and summer of 2010, British Petroleum's Deepwater Horizon spilled millions of gallons of crude oil into the Gulf of Mexico, resulting in one of the largest oil spills in... more
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10/23/21

Problems Involving Conic Sections
Find the standard equation of the ellipse whose major and minor axes are the transverse and conjugate axes (not necessarily in that order) of the hyperbola y 2 -x2 -4x-4y-4=0.
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10/23/21

Problems Involving Conic Sections
Find the standard equation of the parabola opening to the left whose axis contains the major axis of the ellipse 4x2 +9y2 =144, whose focus is the center of the ellipse, and which passes through... more
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10/23/21

Problems Involving Conic Sections
Find the standard equation of the hyperbola whose conjugate axis is on the directrix of the parabola y2 -5x+12y=-16 , having the focus of the parabola as one of its foci, and the vertex of the... more
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10/23/21

Problems Involving Conic Sections
1.   Find the standard equation of the hyperbola whose conjugate axis is on the directrix of the parabola y2 -5x+12y=-16, having the focus of the parabola as one of its foci, and the vertex of the... more
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10/22/21

An arch in the form of semi – ellipse is 50 feet wide at the base and has a height of 16 feet. How wide is the arch at the height 8 feet above the base?

An arch in the form of semi – ellipse is 50 feet  wide at the base and has a height of 16 feet. How wide is the arch at the height 8 feet above the base?
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Mathematics Math

10/21/21

What is the equation of the line that passes through the point (3,-8)(3,−8) and has a slope of 0?
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Mathematics

10/20/21

A line that includes the point (-5, 7) has a slope of -7/5 What is its equation in slope. intercept form
slope intercept form equation
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Mathematics Math Sat Math Act Math

10/20/21

AMDM (Mathematics) 2 Part Question

Kelly works two jobs. She usually works at a retail store for 7 hours during the day and is paid $8.71 per hour by the store. In the evening she works at a restaurant as a manager for 5 hours and... more
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Mathematics Math Sat Math Act Math

10/20/21

AMDM (Mathematics) Question
A class of 43 students took a test. 12 students had an average score of 71. the other students had an average score of 89. what is the average score of the whole class?
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Mathematics Math Sat Math Act Math

10/20/21

AMDM (Mathematics) Question
You have an 85 average in a class, the grade is split between coursework worth 30% of the grade, tests worth 20% of the grade, finals worth 20% of the grade, reinforcement worth 15% of the grade... more
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Mathematics

10/20/21

how do i round 14553 to the nearest ten
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Mathematics

10/19/21

Simple math problem
Will you please give the answer to this problem that is creating much discussion on Facebook: 1+2+3×4=Thank you.
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10/19/21

(x)=√(5x+10), find f′(x) using the definition f′(x)= lim, h→0, {f(x+h)−f(x)} / h . Then, using this, find the tangent line to the graph of y= √(5x+10) at x=3. Enter
For f(x)=√(5x+10), find f′(x) using the definition f′(x)= lim, h→0, {f(x+h)−f(x)} / h . Then, using this, find the tangent line to the graph of y= √(5x+10) at x=3. Enter all values as integers, or... more
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Mathematics

10/19/21

A cyclist rode 3.75 miles in 0.3 hours at that rate how long will it take her to go 4.5 miles
A cyclist rode 3.75 miles in 0.3 hours at that rate how long will it take her to go 4.5 miles
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Mathematics

10/19/21

the larger of two numbers is four more than the smaller . the sum of the two is 40 what is the larger number

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Mathematics Math Functions

10/19/21

The line 3y−6x+9=0 is parallel to which other line?

Between this options y=3−2x y=x−3 y=2x+10 y=6−6x
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