Mathematics Questions

The perimeter of a rectangle is 34 units. Its width W is 6.5 units. Write an equation to represent the perimeter in terms of the length L, and find the value of L.
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This is the problem:Brooke has to set up 70 chairs in equal rows for the class talent show.But ,there is not room for more than 20 rows.What are the possible number of rows that Brooke could set up?plz help what do i do
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The ratio of pens to pencils in Carlo case is 4:5 .He has 16 pens.how many pencils does Carlos have?
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Write a power represented with a positive base and a positive exponent whose value is less than the base.
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For each handmade greeting card jacqui sells,she makes a profit of $0.35. In one week,she made a profit of $42. She sell the cards for $0.75 each. A. About how many greeting cards did jacqui sell that week ? B.about how much did she earn before paying expenses ?
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each month for 6 months, Kelsey completes 5 paintings. How many more paintings does she need to complete before she has completed 38 paintings?
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Ross needs to buy a countertop for a laundry room. He calculated the area to be 12 square feet. The actual area is 11.8 square feet. What is Ross's percentage error?
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Help please Solving Systems Using InspectionHow many solutions does this system of equations have?A.noneB.exactly oneC.exactly twoD.infinitely many
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Three times a number is 42. What is the number?
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Explain why it is necessary to rename 4 1/4 if you subtract 3/4 from it? Help please.
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What fraction of two pounds is fifty pence?
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In whole milk, 13 parts out of 400 are milk fat. In 2% milk, 1 part out of 50 is milk fat. Which type of milk has more milk fat per cup?
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When you round 6 5/11 what's the nearest whole number
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How would you replace 27/50 with the nearest half or whole number without using a number line?
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Andy is one-fourth as old as his grandfather, who is 76 years old. Write an equation to determine whether Andy is 19 or 22 years old.
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Tell whether each number is a solution to the problem modeled by the following equations mystery number: five more than -8 times a number is 29. what is the number?
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What is 20 percent of 70 plants
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60 minutes is 20% of blank minutes
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