4x-3y=1 -8x+6y=-2 elimination method
1 answer:
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Answer:
The width W is :
Step-by-step explanation:
<em>Let A be the area of the rectangle </em>
<em>Let L be the length of the rectangle</em>
<em>Let W be the width of the rectangle </em>
______
Formula:
A = L × W
__________
Answer:
3 more students need to sign up
Step-by-step explanation:
Let the equal number of students in 9 teams be x.
Total number of signed up students = 690.
Let t be the required number of students to be signed.
Therefore, 9x = 690+t.
This means, 690+t is a multiple of 9.
The least value of t to make 690+t, a multiple of 9 is 3 and hence,
= 77
Hence, 3 more students need to sign up and each of the 9 teams consists of 77 students.