$Subtitute\ the\ values\ of\ x=-9.1\\and\ y=5.6\ to\ the\ expression\ x+y:\\\\x+y=-9.1+5.6\\---------\\use\ commutative\ property:a+b=b+a\\\----------\\\\=5.6+(-9.1)=5.6-9.1=\huge\boxed{-3.5}$

7 0

4 years ago

Aliyah I had some candy to give to her four children. she first took ten pieces for herself and then evenly divided the rest amo

ozzi

She started with 18 prices of candy

4 0

3 years ago

Perfume is sold in two different sizes of bottle. The 80ml bottle is priced at £55. The 50ml bottle is usually priced at £45, bu

Nadya [2.5K]

1ml of 80ml bottle: 55/80 = 0.6875 pence

1ml of 50ml bottle: 45/50 = 0.9 pence

If no special offer the first bottle is a better value for money.

Since special offer though, you'd be buying;

50ml bottle £45 + another 50ml £22.5 = £67.5 in

which case 1ml would cost;

67.5/100 = 0.675 pence. Hence buying 2x50ml

bottle would be a better value.

8 0

4 years ago