A car travels at a constant speed. It travels a distance of $$$146.2 \mathrm{~m}$$$, correct to 1 decimal place. This takes 7 seconds, correct to the nearest second. Calculate the upper bound for the speed of the car. ....................................... $$$\mathrm{m} / \mathrm{s}$$$

Mathematics

IGCSE&ALevel

CAIE

Exam No：0580_m20_qp_22 Year：2020 Question No：18

Answer:

$22.5$ nfww

Knowledge points:

E1.10.1 Give appropriate upper and lower bounds for data given to a specified accuracy. (e.g. measured lengths.)

E1.10.2 Obtain appropriate upper and lower bounds to solutions of simple problems given data to a specified accuracy. (e.g. the calculation of the perimeter or the area of a rectangle.)

E1.11.3 Calculate average speed. (Use ratio and scales in practical situations.)

Solution:

Download APP for more features

1. Tons of answers.

2. Smarter Al tools enhance your learning journey.

IOS
Download

Android
Download

Google Play
Download

A car travels at a constant speed. It travels a distance of $$\(146.2 \mathrm{~m}\)$$, correct to 1 decimal place. This takes 7 seconds, correct to the nearest second. Calculate the upper bound for the speed of the car. ....................................... $$\(\mathrm{m} / \mathrm{s}\)$$

Answer:

Knowledge points:

Solution:

Related Question