Question
Ballpoint pens come in packs of 10 . You want 23 pens for your class.(a) How many pens will you order?(b) Does this illustrate rounding up, rounding down, or rounding to the nearest?
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Select the correct alternative from the given choices. The cost of two pens, one eraser and three sharpeners is $? 23 .$ The cost of six pens, three erasers and one sharpener is $? 45 .$ The cost of fourteen pens, seven erasers and twenty one sharpeners is $? 161$. Find the cost of each pen (in ?). (A) 3 (B) 4 (C) 5 (D) Cannot be determined
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Select the correct alternative from the given choices. A child went to a shop to buy a pen, a pencil and a ruler where costs are integral values (in $?$ ) and are in decreasing order. Each item costs at least $? 4$. The total cost is $? 15$ and the cost of a pencil is $? 5$. How many pencils can he purchase with the amount required to purchase ten rulers? (A) 10 (B) 12 (C) 8 (D) 9
Leis has $\$ 25$ to spend on school supplies. Pencils $(p)$ cost $\$ 1.25$ per package, notebooks $(n)$ are priced at $\$ 2.50$ each, and markers $(m)$ sell for $\$ 4$ per pack. He must buy exactly one calendar/planner for $\$ 5.75$ Which of the following describes how many markers Luis can buy? A. $m \leq \frac{1.25 p+2.5 n+5.75}{25}$ B. $m \leq \frac{19.25-1.25 p-2.5 n}{4}$ C. $m \leq \frac{25-1.25 p-2.5 n}{4}-5.75$ D. $m \leq 19.25-1.25 p-2.5 n$
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