weebmodeactivated weebmodeactivated

01-01-2021
Mathematics

contestada

A car travels for x hours at a speed of (x + 2) km/h. If the distance
travelled is 15 km, write down an equation for x and solve it to find
the speed of the car.

Respuesta :

AlwaysAppear AlwaysAppear

01-01-2021

Step-by-step explanation:

S = v/t

(x+2)km/h

((x+2)×1000)/(60×60) = (15×1000)/(60×60)

(5(x+2)/18) = 25/6

30(x+2) = 18×25

x+2 = 15

x = 13m/s

Answer Link

Otras preguntas

What is one fact about xuchal

The positive integer x is a multiple of 9 and also a multiple of 12. The smallest possible value of x is (A) 3 (B) 12 (C) 21 (D) 36 (E) 72

Examples of cultural diffusion in ancient Rome pertaining to government

I am two numbers, the sum of my numbers is 100, the difference between my two numbers is 30,

The tropical climate zone is in which two states?

Why do automobiles rust more easily in wet climates than drier climates?

in what situation does friction make an object change its shape

What causes chemical weathering?

Patrick ate 3/5 of a small pizza on Friday night. For lunch on Saturday , he ate 1/2 of the leftover pizza. How much pizza did he eat for lunch on Saturday?

Give 3 examples to show work being done.