Hello, in order to solve this you first need to take $20 subtracted from 160 that leaves you with 140 next because she bought 4 sweaters you need to divide your remaining cash spent by 4 to get a total of $35 a sweater.
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Answer:
value of x = 2.8
Step-by-step explanation:
By law of cosines,
Answer:
9 = x^2+y^2
Step-by-step explanation:
3^2 = (x-0)^2 + (y-0)^2
9 = x^2+y^2
Answer:
6 different groups.
Step-by-step explanation:
This is the number of combinations of 2 fro m 4:
4C2 = 4! / 2! 2!
= 4 * 3 *2 *1 / (2*1*2*1
= 24/4
= 6 groups.