A community for students.
Here's the question you clicked on:
 0 viewing
M_M13
 one year ago
will medal and fan
3 questions
M_M13
 one year ago
will medal and fan 3 questions

This Question is Closed

M_M13
 one year ago
Best ResponseYou've already chosen the best response.0Two cars traveled equal distances in different amounts of time. Car A traveled the distance in 2.4 h, and Car B traveled the distance in 4 h. Car A traveled 22 mph faster than Car B. How fast did Car A travel? ________mph

M_M13
 one year ago
Best ResponseYou've already chosen the best response.0Gretchen and Ezia received equal scores on a test made up of multiple choice questions and an essay. Gretchen got 18 multiple choice questions correct and received 19 points for her essay. Ezia got 15 multiple choice questions correct and received 31 points for her essay. How many points was each multiple choice question worth? _______points

M_M13
 one year ago
Best ResponseYou've already chosen the best response.0In October, Greg and Thomas had the same amount of money in their savings accounts. In November, Greg deposited $120 into his account. Thomas increased the money in his account by 20%. When they compared their balances, they found that they were still equal. How much money did each person have in his account in October? $________

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0here is the answer for the first question:You have the formula, Velocity=distance/time hence we'll use that to solve for the velocity of both Cars A and B since Car A traveled for 2.4 hours, then we'll have Va = d/2.4 equation 1 since Car B traveled for 4 hours, then, Vb = d/4 equation 2 NOTE that the distance traveled by Cars A and B are equal getting the distance from equations 1 & 2 Va = d/2.4 d=2.4Va equation 3 Vb = d/4 d=4Vb equation 4 since distance of A and B are equal then we can equate equations 3&4 2.4Va=4Vb equation 5 The problem states that Car A traveled 22mph faster than car B. Therefore we'll have the equation as: Va=Vb+22 equation 6 substituting equation 6 to equation 5 we'll have 2.4Va=4Vb 2.4(Vb+22)=4Vb 2.4Vb +22(2.4)=4Vb 4Vb2.4Vb=52.8 1.6Vb=52.8 Vb=33mph substituting Vb to equation 6 Va=Vb+22 Va=33+22 Va=55mph

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0you will have to set this up into two equations and then use substitution or elimination. so the first equation would be 18x+19=y can you figure out the second equation from here?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0this is for the second question
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.