katrobinson68 katrobinson68

29-05-2020
Mathematics

contestada

sam can mow his yard in 5 hours. Lucy can mow the same yard in 3.5 hours. How long will it take them to mow the lawn together?

Respuesta :

dolphin555 dolphin555

29-05-2020

Answer:

Sam workrate 1/5

Lucy workrate 1/3.5 = reciprocal of 7/2 = 2/7

combined workrate: 1/5 + 2/7 = 17/35

they will mow the lawn in 35/17 = 2 and 1/17 hours

2 hours 3 1/2 mins

Step-by-step explanation:

Answer Link

Otras preguntas

describe the thief who was caught stealing from a supermarket

Which of the following rational functions is graphed below?

Ryan Campbell has invested in a fund that will provide him a cash flow of $11,700 for the next 20 years. If his opportunity cost is 8.5 percent, what is the pre

Which of the following rational functions is graphed below?

We learn more from failure than we do from success. Which choice below is the most effective supporting topic sentence for a paragraph in this essay? There aren

Which statement about ecosystems is true

Identify the reason for the unacceptable paraphrase in the 2nd paragraph. 1st Para: Here’s the original text, from page 1 of Lizzie Borden: A Case Book of Fami

AYUDENME CON ESTO PORFAVOR/HELP ME WITH THIS PLEASE

which sentence best explains what the author is foreshadowing in this passage?

Read the student thesis. Parents should, if they choose, limit the amount of television their children are viewing. The best way to improve this thesis is to in