algebra

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Algebra

Write in symbols the same thing as these words.: 1. a number: x; 2. one more than a number: x + 1 or 1 + x; 3. 60 more than a number: 60 + x or x + 60; 4. twenty less than a number: x - 20; 5. the sum of a number and 4: x + 4 or 4 + x
Write it in 4 different ways.: 6. the product of a number and two; (2)(a) or 2a or 2(a) or (2)a or 2·a or a·2
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Write an algebraic expression and its code.
Jackie.) the product of five and a number decreased by the number.: (product) - (number); (5(number)) - (number); 5x - x; 4x
Laurel.) the product of three more than a number and a different number is divided by 5: (product)/5; (three more than a number)(different number)/5; ((number) + 3)(different number)/5; (x + 3)(y)/5
Abby.) the sum of a number and 7 added to the product of 4 and the number: (sum) + (product); ((number) + 7) + (4(number)); (x + 7) + (4x); x + 7 + 4x
A.D..) the sum of a number and two: (sum); (number) + (2); x + 2
Steve.) the sum of a number and six: (sum); (number) + (6); x + 6
Terrell.) five less than a number: (number) - 5; (x) - (5); x - 5
Aggie.) the sum of a number and two increased by the product of a number and 3: (sum) + (product); ((number) + 2) + (3(number)); x + 2 + 3x; 4x + 2
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Qu. 1 & 2: Write the code & expression
1. the perimeter of a triangle in which the smallest side is one less than the middle and the largest side is one more than the middle: (perimeter); (smallest) + (middle) + (largest); ((middle) - 1) + (middle) + ((middle) + 1); (x - 1) + (x) + (x + 1); 3x
2. the total value of the following coins:: some pennies,; five more nickels than pennies,; one fewer quarter than the number of pennies; (pennies) + (nickels) + (quarters); 1(pennies) + 5(nickels) + 25(quarters); 1(x) + 5(x + 5) + 25(x - 1); x + 5x + 25 + 25x - 25; 31x
3. Write an algebraic area problem and answer it.: (Student Answers )
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Solve.: 1.) 3x - 6 = 4x + 2; 2.) -4x = -8x + 1; 3.) A bank holds 15 coins worth $1 in total. Some are dimes. Some are nickels. Find how many of each.
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