Evaluate the expression. 2/5 + 1/5 * 1/2 Write your answer as a fraction or as a whole or mixed number. ______

Determine Total Amount: First, we need to determine the total amount of electrical tape the electrician needs and the amount of tape on each roll to calculate the number of rolls required. Total amount of electrical tape needed: 8,000 cm Amount of tape on each roll: 2,000 cm To find the number of rolls, we divide the total amount of tape needed by the amount of tape on each roll. Calculation: 8,000 cm ÷ 2,000 cm = 4 rolls

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Math Problems

Grade 7

Evaluate numerical expressions involving fractions

Full solution

Q. Evaluate the expression.

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\frac{2}{5} + \frac{1}{5} \times \frac{1}{2}

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Write your answer as a fraction or as a whole or mixed number.

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______

Determine Total Amount: First, we need to determine the total amount of electrical tape the electrician needs and the amount of tape on each roll to calculate the number of rolls required. $\newline$ Total amount of electrical tape needed: $8,000\,\text{cm}$ $\newline$ Amount of tape on each roll: $2,000\,\text{cm}$ $\newline$ To find the number of rolls, we divide the total amount of tape needed by the amount of tape on each roll. $\newline$ Calculation: $8,000\,\text{cm} \div 2,000\,\text{cm} = 4$ rolls