Hello,
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Answer:
Step-by-step explanation:
(Y1 +Y2)/2=-7+3/2 so y=-2
(X1 +X2)/2=4+2/2 so x=3
1 ) substitute the r in the equation for 1.2.
6 (1.2)+7= ?...... multiply then add for. answer. 7.2+7= 14.2
2) since the miles Hanna runs is unknown it makes it n. Julie runs 3 miles less than twice hunny runs. Therefore it should be 2n-3.
3) you would subtract the regular number from both sides first so 55-40= 15.. the equation would then be 5s=15 then you would divide both sides by 5...making s=3.
4) you would add the sum of 8 to the product of 2 and y to get 24 so it should be 8+2y=24
