Suriin ang IDNStudy.com para sa mabilis na mga solusyon sa iyong mga problema. Alamin ang mga maaasahang sagot sa iyong mga tanong mula sa aming malawak na kaalaman sa mga eksperto.

The average of 7 consecutive even numbers is 42, what is the smallest number?

Sagot :

[tex]Solution; \\ Let\ x\ be\ the\ smallest\ even\ number. \\ Let\ x+2\ be\ the\ next\ even\ number. \\ Let\ x+4\ be\ the\ next\ even\ number. \\ Let\ x+6\ be\ the\ next\ even\ number. \\ Let\ x+8\ be\ the\ next\ even\ number. \\ Let\ x+10\ be\ the\ next\ even\ number;and \\ Let\ x+12\ be\ the\ biggest\ even\ number. \\ \\ Equation; \\ \\ \frac{x+x+2+x+4+x+6+x+8+x+10+x+12}{7}=42 \\ \\ \frac{7x+42}{7}=42 \\ \\ x+6=42 \\ \\ x=42-6 \\ \\ \boxed{\boxed{x=36}} [/tex]

[tex]Conclusion; \\ Thus,\underline{36}\ is\ the\ smallest\ even\ number. \\ \\ Checking; \\ Where\ x\to36 \\ \\ x\to36 \\ x+2\to38 \\ x+4\to40 \\ x+6\to42 \\ x+8\to44 \\ x+10\to46 \\ x+12\to48 \\ \\ \frac{36+38+40+42+44+46+48}{7}=42 \\ \\ \frac{294}{7}=42 \\ \\ \boxed{\boxed{42=42}}\ \underline{TRUE} \\ \\ Hope\ it\ Helps:) \\ Domini [/tex]