题干

某公司承担了制作600个广州亚运会道路交通指引标志的任务, 原计划x天完成,实际平均每天多制作了10个,因此提前5天完成任务.根据题意,下列方程正确的是(       )

A:600x-5-600x=10

B:600x-600x+5=10

C:600x-10+5=600x

D:600x-5+10=600x

上一题 下一题 0.0难度 选择题 更新时间:2018-03-12 03:53:44

答案(点此获取答案解析)

A

同类题1

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Volunteer Opportunities

    Ring the bells

    The Salvation Army needs bell ringers for its annual Red Kettle Christmas Campaign. Two hour shifts begin on Nov.12 and run Mondays through Saturdays. Volunteers can contact Jim Evers at jimevers@usc.salvationarmy.org or at 764-0962, or sign up online at ringbels.org.

    Read to children

    Join the United Way and Child Care Aware in supporting the development and learning of young children. Volunteers are needed to spend 30 minutes a week reading to children and guiding related activities using literacy kits(识字工具包)provided by Childcare Aware of Eastern Kansas .A two-hour literacy training will be provided. To ensure continuity for the children in the program, we are asking that volunteers make a six-month commitment. Please contact Shelly at 865-5030, ext.301 or at volunteer@unitedwaydgco.org.

    Garden with a neighbor

    Douglas Country Housing Inc. is looking for volunteers to assist a senior man in need of help with an overgrown garden before winter arrives. One to two hours of your time will make a huge difference in someone's quality of life. No previous gardening experience is required. Please e-mail rsovista@ldcha.org or call 842-1533.

    Feed your friends

    Just food fights hunger in our community. Help Just Food kick off the holiday season by packing. Thanksgiving meal boxes for families in need. Every year Just Food provides Thanksgiving meals to families in Douglas Country that will otherwise go without. Your help is needed for distributing these meals in advance of Thanksgiving. Help is needed on the following days and times:

    9 a. m. –7 p. m. Monday, Nov. 21.

    9 a. m. –7 p. m. Tuesday, Nov. 22.

    The maximum number of volunteers is 15 at a time. To sign up, click here.

同类题3

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    A girl complained to her father about her hard life. She didn't know what she had to do and wanted to1up. She felt tired of fighting and fighting. One problem had been finished but2came over.

    Her father, a cook, took her into the3.He poured water into three pans (锅) and boiled it. When the water was boiling, in the first pan he put some carrots, in the second he put some eggs and in the last he put some coffee. He 4for them for a few minutes without any words.

    The girl waited impatiently, not knowing5her father was doing that. About 20 minutes later, her father turned6the stove, took out the carrots and put them in a bowl. He took out the7and put them in another bowl. After that the coffee was poured into a cup. Turning back to his daughter, he asked, “My sweet heart, what do you8?” “Carrots, eggs and coffee,” she answered.

    Her father told her to 9her eyes and let her touch the carrots. She did so and felt that the carrots were10. After that he asked her to take eggs and11them. Then, she got the eggs, warm and hard. At last, the father asked her to smell the coffee. She asked, “What did you do this for, Father?” He12that each one had had the same unlucky experience—the boiling water, but13had a different result. The strong and hard carrots had become soft and weak after being in the boiling water. The eggs became hard after being cooked. The coffee was very14and it changed the water. “Who are you?” asked her father, “When bad luck15your door, what's your decision? Are you carrots, eggs or coffee?”