A map has a scale of 2 centimeters = 4 miles. Mary's drive to work is represented on the map as traveling 1cm north then 2.5 cm west. Which equation could be used to determine how many miles Mary drives to work?

Step-by-step explanation:

Given:

Scale:

2 cm to 4 miles

Mary's drive to work:

1 cm north

= 1 cm × 4 miles/2 cm

= 2 miles north

2.5 cm west

= 2.5 cm × 4 miles/2 cm

= 5 miles west

Total distance = (1 cm N + 2.5 cm W) × 4/2

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950

answer: the first graph

step-by-step explanation: