Part A Which equation represents the best estimate for the total cost of all of the bolts? 33 bolts that cost \( \$ 0.38 \) each. \( \$ 0.30 \times 30=\$ 9 \) \( \$ 0.50 \times 30=\$ 15 \) Part B What is the actual total cost of all of the bolts? Enter your answer in the box. \( \$ 0.40 \times 30=\$ 12 \)
Solución de tutoría real
Responder
Solución
Revisado y aprobado por el equipo de tutoría de UpStudy
Bonus Knowledge
To estimate the total cost of 33 bolts at \( \$0.38 \) each, rounding the price to \( \$0.40 \) makes calculations easier. So, using \( \$0.40 \times 30 \) gives \( \$12 \), which is not accurate for the total but provides a close estimate. Among the options, \( \$0.30 \times 30=\$9 \) will result in a lower estimate than the actual cost, while \( \$0.50 \times 30=\$15 \) is too high. Now, for the actual total cost of all 33 bolts: \( 33 \times 0.38 = 12.54 \). Thus, the cost rounds to approximately \( \$12.54 \), reflecting how important accuracy is when budgeting!