Dorthy756 Dorthy756

10-06-2015
Mathematics

Answered

Jonathan drove to the airport to pick up his friend. A rainstorm
forced him to drive at an average speed of 45 mph, reaching the
airport in 3 hours. He drove back home at an average speed of
55 mph. How long, to the nearest tenth of an hour, did the trip home
take him?
(1) 2.0 hours (3) 2.8 hours
(2) 2.5 hours (4) 3.7 hours

Answer :

10-06-2015

on the way to the airport he drove with 45 mph in 3 h
the distance is 45mph*3h=135 miles
on the way back, he drove with 55 mph
55mph/?h=135 miles
h=135/55= 2.5
choice 1

Answer Link

Other Questions

I- La position du mouvement d'un mobile M est de la forme : ом: (* = 1 + 4c0s5t 1=2+ 4sin5t Détermine l'équation de la trajectoire. Quelle est sa nature ? Justi

A,B and C are three points lying in that order on a straight line. A body is projected from B towards A with speed 3m/s .The body experiences a acceleration of

We highlighted a moment in the early years of the Cold War when George Kennan's original idea of containment was militarized and defense spending increased sign

•Identify one law/legislation in South African that address the issue of poor access to clean water and explain the purpose of the law identified.

The articles of the UCMJ located in Subchapter X, Punitive Offenses, describe O noncontact offenses that involve damage or theft of property for which both fine

Once you know the purpose, audience, and situation for your speech, the next step in planning a speech is to decide on the central idea.O True False

If anyone has taking the connexus world geography final exam (unit 9 lesson 2) could you please provide the correct answers I haven’t had much time to study and

20 829 fox do+ to OA. y= √x²+4.x < 2 x+4, x≥2 √x²+4, x≥ 2 B. y= x+4, x<2 x²+4, x≤2 C. y= (x+4, x> 2

how many atoms or particles in 8 grams of sodium

2. Luis is reading an article about the history of German film written by a film critic. What is the primarypurpose of the article?a. to informb. It has no purp

Translate the statement into an equation:the difference of four times a number and eight is equal to twenty-three less than that number

1) "30 minutes is equivalent to 0.30 hours". This sentence is wrong. Why?2) the mass of the sun is 1,98x10^30 kg. what is the order of magnitude of this mass?a)

3 equivalent ratios for 27:15

How do crabs support and protect themselves without a skeleton

Suppose 1/4 of Billy's stamp collection are cancelled stamps and 3/4 of the stamp collection are uncancelled stamps. How many stamps might be in his collec

What was the first group to settle Hawaii?

45x678 using the distributive property

How did Procopius link the cathedral's opulence (wealth) to true Christian values?

1. (2xy^2)(-3x^2y) 2.(1/3x^2y)(-9xy^3)=

Do all of the cells of your body divide at the same rate? Explain.