kevinnis three times as old as Bob. Three years ago the sum of their age was 26. How old is each now?
kevinnis three times as old as Bob. Three years ago the sum of their age was 26. How old is each now?
Consider the simultaneous equations px-y=6, 8x-2y=q determine the conditions that p and q must satisfy of the simultaneous equations have (i) an infinite number...
THERE ARE 26 STUDENTS IN YOUR CLASS. THERE ARE FOUR MORE GIRLS THAN BOYS. USE A SYSTEM OF LINEAR EQUATIONS TO FIND HOW MANY BOYS AEE IN YOUR CLASS. HOW MANY GIRLS ARE IN YOUR CLASS?
I bought x cards for $c each and y envelopes for $d each. The average price of each item, in dollars, is:
A shopkeeper mixed a herb worth $2.50 a kg with another herb worth $3.50 a kg. He sold 20kgs of the mixture at $2.8 per kg. Find the weights of the two different herbs e mixed together.
The birth rate is the number of births per 1000 women. A multiple birth rate is any birth with 2 or more children born. A) What are the independent and dependent variables? B) What is the...
A cyclist travels m km at v km/h and n km at u km/h. The average speed of the cyclist is:
A=P(1+rt) solve for r My answer was(A-P)/Pt=r but my math teacher said that its wrong and I'm having trouble figuring out what it is
Joanne sells? silk-screened T-shirts at community festivals and craft fairs. Her marginal cost to produce one? T-shirt is $ 3.50. Her total cost to produce 50 ?T-shirts is $ 255, and she sells them...
Andrew challenges his teacher to have a race with his cousin which is Usain Bolt and he says if he wins he has to give him an A in math. If he doesn't he'll make up all his homework. 15 seconds after...
To produce x units of a religious medal costs C(x)= 18x+63. The Revenue is R(x)= 27x. Both cost and revenue are in dollars. a.Find the? break-even quantity. b. Find the profit from...
One number is 4 less than 5 times another number. If the sum of the two numbers is 68, find the two numbers.
Cassy drove 140 miles from her home in Palm springs to San Diego in 2 hours. How fast was she traveling.
Lamar is putting a new baseboard around his bedroom. The perimeter of the room is 75 1/2 feet. He measures the width and finds that it is 15.75 feet. What is th
How do you write a system of linear equations in two variables? Explain this in words and by using mathematical notation in an equation.
I thought the equation was y=mx+ b! Plus B!!!!! but my homework says y=-7/5x - 3???????!!!!
find out $5.33 exact cost of 8 pounds of bananas
solve problems
How many gallons of a 5% acid solution must be mixed with 5 gal of a 10% solution to obtain a 7% solution?
Cody westmoreland wishes to sell a piece of property for $240000. He wants the money to be paid off in 2 ways-- a short term note at 2% interest, and a long term note at 2.5% interest. Find the amount...