6,938 Answered Questions for the topic mathematics

Mathematics

12/05/21

Jasmine wanted to cut some ribbon into 4 pieces, each 3 2/5 feet long. How big a piece of ribbon did she need to start with?
Second part of the question.when she went to the fabric store, they only had enough ribbon for her to make 2 1/2 pieces that were as long as she wanted. How much ribbon did the fabric store have?
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Mathematics

12/04/21

How many gallons each of 30% alcohol and 5% alcohol should be mixed to obtain 25 gal of 17% alcohol?
How many gallons each of 30% alcohol and 5% alcohol should be mixed to obtain 25 gal of 17% alcohol?
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12/04/21

need help with chem question
What volume of 6.0 M acid is required for the preparation of 500.0 mL of 0.30 M solution?
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Mathematics

12/04/21

On a certain hot​ summer's day, 33 people used the public swimming pool. The daily prices are $1.59 for children $2.25 and for adults. The receipts for admission totaled $786.75
On a certain hot​ summer's day, 33 people used the public swimming pool. The daily prices are $1.59 for children $2.25 and for adults. The receipts for admission totaled $786.75How many children... more
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12/03/21

How to solve this by chain rule?
If z=f(x,y), where x=rcosθ and y=rsinθ, show that∂2z /∂x2+ ∂2z /∂y2= ∂2z/∂r2 + 1/r2. ∂2z/∂θ2 + 1/r . ∂z/∂r
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Mathematics Calculus Calculus Gre

12/03/21

The temperature in space given by T(x,y,z)=200xyz^2 . Find the hottest temperature on a unit sphere centered at the origin.(DO NOT USE LAGRANGE MULTIPLIERS)
Please don't use Lagrange Multipliers Method.
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Mathematics

12/03/21

Student 1 sold 8 small candy bars and 12 large candy bars =$34. Student 2 sold 16 sm candy bars and 20 large=$58.75. How much are lg and sm candy bars?
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Mathematics

12/02/21

Eight more than a number is fifteen
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Mathematics

12/02/21

Eight more than a number is fifteen
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Mathematics

12/02/21

Jane's cousin Maggie is 3 times as old as Jane. After 4 years, the cousin will be 2 times as old as Jane. Let x= Jane's age Jane's age today = Maggie's age today=  
Jane's cousin Maggie is 3 times as old as Jane.After 4 years, the cousin will be 2 times as old as Jane.Let x= Jane's ageJane's age today =Maggie's age today=  
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Mathematics

12/01/21

The larger of two integers is 3 more than 5 times the smaller integer. Find the two numbers if the smaller number subtracted from the larger is 31.
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Mathematics Calculus

11/30/21

given the equation c(x)=0.4/x^2, where x is equal to distance in miles, find the instantaneous velocity at x=5 and x=11
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Mathematics Calculus

11/30/21

a person x inches tall has a pulse rate approximately given by the function y=610x^-1/2. find the instantaneous rate of change for pulse rates at x=40 and x=70.
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Mathematics Calculus

11/30/21

find the equation of the tangent line to the given curve at the specified point: y=sqrt x/x+1, (4, 2/5)
y=sqrt x/ x+1 is the equation for curvethe specified point is (4, 2/5)
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Mathematics Calculus

11/30/21

what is the velocity of an object dropped from a height of 150 meters when it hits the ground?
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Mathematics Calculus

11/30/21

consider the functions f(x) and g(x), for which f(0)=6, g(0)=7, f'(0)=11, and g'(0)=-4. find h'(0) for the function h(x)=f(x)/g(x)
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Mathematics Calculus

11/30/21

consider the function h(x), for which h(3)=13 and h'(x)=7. find f'(3) for the function f(x)=h(x)/x.
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Mathematics

11/30/21

find f(4) if f(x) = (1/2)x + 13
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11/30/21

A shop has 6 rows of lighting each with 42 fixtures. During a lighting retrofit it takes 2 electricians 70 minutes to change 1 fixture.
How many electricians are required to change all of the fixtures in a 40 hour time period
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Mathematics Math Algebra 1 Algebra 2

11/30/21

Focus Problem- Math
The next page contains some information related to mpg (miles per gallon), vehicle efficiency, and governmental regulatory standards/penalties [note the CAFE standards penalty referenced are not... more
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11/29/21

Differential equation
Consider x ≠ 0. Solve the differential equation2ydy/dx = 5+2x-2y² Determine the particular solution that passes through the point (0, √ 5) and the maximum range where it is defined.
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11/29/21

Hyperbola passes through (1; 9) and (-1; 9). Construct a hyperbolic equation. What points of this hyperbola do the circle pass through, whose diameter is determined by the same points.
I am getting the answers with logic, but I don't know how to correctly find the solution.
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Mathematics

11/29/21

Comparing Decimals
Julio, Keesha, and Louie are cooks at a sandwich shop. Julio’s hourly wage is $12.35, Keesha’s hourly wage is $12.50, and Louie’s hourly wage is $10.85. Which shows their names in order from the... more
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Mathematics

11/29/21

$10 invested at 12% compounded continuously after a period of 4 years
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Mathematics Math Precalculus Maths

11/29/21

Mr. Salazar pays ₱300,000 cash and 15,000 monthly for 20 years for a house and lot. If money is at 8.5% compounded every month, how much is the cash value of the property?

Mr. Salazar pays ₱300,000 cash and 15,000 monthly for 20 years for a house and lot. If money is at 8.5% compounded every month, how much is the cash value of the property? 
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