book Maths Puzzle Numerical Ability

Find the x-intercept and y-intercept of the equation 5x − 3y = 30.

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book Other Question

what is the ratio of the number of nickles in a quarter to the number of quarters in a dollar?(the possibilites are.....5/4, 5/25, 4/5, or none of these) The time required to complete a job varies inversely as the number of people working. It too 4 hours for 7 electricians to wire a buikding. How long would it have taken 3 electricians to have done the job?