16-10-2016
Mathematics

Answered

the cost of a phone call is c pence which is calculated using the formula c=20+5m where m is the number of minutes the phone call lasted find the value of c when 1)m=1 2)m=5 3)m=12

Verified Answer :

16-10-2016

I believe the answer is 25 because it says that 2)m=5 or it may be 30 because 5times 2 equals 10 and 10plus 20 gives you 30

Answer Link

Related Questions

The revolution of the Earth creates day and night as it rotates around the Sun a True b False

What is the formula for the law of universal gravitation

On Monday Harold picked up four donuts and three large coffees for the office staff He paid 496 On Tuesday Melinda picked up six donuts and six large coffees fo

145 puzzle 2512 3621 811

Write the number in two other form 0326 I

How does pollution effect the water cycle

The amount of water in a bottle is reduced by 85 to 120 milliliters How much water was originally in the bottle

Nationalism can allow people to express devotion to their nation their religion their race their culture

solve each system1 6x9y21 10x3y232 5x6y18 y3x3

Which if the following is a base A substance d contains carbon hydrogen oxygen and nitrogen b substance b gives off OH ions that combine with H ions when dissol