You would multiply the students by the price (12*10=120) then multiply chaperones by price (6*15=90) then add both prices together to get 210. Then you would subtract 210 from 380 to get how many boys are in the class. 380-210=170. Since each student cost 10 so you would divide 170/10=17. There would be 17 boys in your class.
-9 is a rational number. Rational numbers are numbers that can’t be written as a simple fraction like pi (3.14...etc)
Answer:
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Step-by-step explanation:
Answer:
-81 - y
Step-by-step explanation:
To simplify the expression -3[2-(y-5)]-4[3(y+1)-(6-y)(-2)] use order of operations or PEMDAS.
-3[2-(y-5)]-4[3(y+1)-(6-y)(-2)]
-3[2-y+5]-4[3y + 3+12 -2y]
-3[7-y] -12y-12-48+8y
-3[7-y] - 4y - 60
-21 + 3y - 4y - 60
-81 - y
