Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
At the school bookstore and two binders and three pens cost $12.50. Three binders and five pens cost $19.50. What is the approximate cost of 1 binder and 1 pen?
Let x = the cost of one binder and let y = the cost of one pen. The ?rst statement, "two binders and three pens cost $12.50," translates to the equation 2x + 3y = 12.50. The second statement, "three binders and ?ve pens cost $19.50," translates to the equation: 3x + 5y = 19.50
Multiply the ?rst equation by 3: 6x + 9y = 37.50Multiply the second equation by -2: -6x + -10y = -39.00Combine the two equations to eliminate x: -1y = -1.50Divide by 1: y = 1.50
Thus, the cost of one pen is $1.50. Since the cost of 2 binders and 3 pens is 12.50, substitute y 1.50 within the ?rst equation: 3 × $1.50 = $4.50; $12.50 - 4.50 = $8.00; $8.00 ÷ 2= $4.00, so every binder is $4.00. The total cost of 1 binder and 1 pen is $4.00 + $1.50 = $5.50.
The sum of three times a greater integer and 5 times a lesser integer is 9. Three less than the greater equivalent the lesser. What is the value of the lesser integer? Let x =
two consecutive integers sum to 39, what they?
9*9
Find out the area of the region enclosed by y = x 2 & y =√x . Solution Firstly, just what do we mean by "area enclosed by". This means that the region we're interested in
Question 1: What is the minimum number of students each of whom comes from one of the 50 different states, enrolled in a university to guarantee that there are at least 100 who
how do you slove 4u-5=2u-13
Show that 571 is a prime number. Ans: Let x=571⇒√x=√571 Now 571 lies between the perfect squares of (23)2 and (24)2 Prime numbers less than 24 are 2,3,5,7,11,13,17,1
A bag contains 8 red balls and x blue balls, the odd against drawing a blue ball are 2: 5. What is the value of x? (An
The F Distribution The F distribution is the distribution of the ratio of 2 random variables. Both random variables have yet another distribution, called the c 2 Distri
Regression line drawn as y=c+1075x, when x was 2, and y was 239, given that y intercept was 11. Caculate the residual
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd