<u>Answer</u><u> </u><u>:</u>
- The school cafeteria sold 35 vegetable wraps.
<u>Step-by-step explanation:</u>
- Let the count of vegetarian wraps be x
- Let the count of chicken wraps be y.
<u>Then</u><u> </u><u>for</u><u> </u><u>the</u><u> </u><u>count</u><u> </u><u>we</u><u> </u><u>have</u><u> </u><u>:</u>
→ count of vegetarian wraps + count of chicken wraps = 103
→ x + y = 103......[Equation (i)]
<u>Then</u><u> </u><u>for</u><u> </u><u>the</u><u> </u><u>cost</u><u> </u><u>we</u><u> </u><u>have</u><u> </u><u>:</u>
→ ❲$1.00 * x❳ + ❲$3.40 * y❳ = $266.20
<u>Dropping the dollar signs we get :</u>
→ ❲1.00 * x❳ + ❲3.40 * y❳ = 266.20
→ x + 3.40y = 266.20.....[Equation (ii)]
<u>Substr</u><u>acting</u><u> </u><u>equation</u><u> </u><u>(</u><u>i</u><u>)</u><u> </u><u>from</u><u> </u><u>equatio</u><u>n</u><u> </u><u>(</u><u>ii</u><u>)</u><u> </u><u>we</u><u> </u><u>get</u><u> </u><u>:</u>
→ 0 + 2.4y = 163.2
→ 2.4y = 163.2
→ y = 163.2 ÷ 2.4
→ y = 68
<u>Now</u><u>,</u><u> subsitute</u><u> </u><u>the</u><u> </u><u>value</u><u> </u><u>of</u><u> </u><u>y</u><u> </u><u>=</u><u> </u><u>6</u><u>8</u><u> </u><u>in</u><u> </u><u>equatio</u><u>n</u><u> </u><u>(</u><u>i</u><u>)</u><u> </u><u>we</u><u> </u><u>get</u><u> </u><u>:</u>
→ x + y = 103
→ x + 68 = 103
→ x = 103 - 68
→ x = 35
- <u>Hence</u><u>,</u><u> the school cafeteria sold </u><u>35</u><u> vegetable wraps.</u>