Answer:
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hope you've done on my answer lol
Answer:
90
Step-by-step explanation:
87 is closer to 90 than to 80, so it rounds to 90 when rounded to the nearest 10.
Eq. 1 .10x + .25y = 9.45
Eq. 2 x + y = 60 rewrite as x = 60 - y and substitute into equation 1.
.10(60 - y) + .25y = 9.45
6 - .1y + .25y = 9.45
6 + .15y = 9.45
.15y = 3.45
y = 23
60 - 23 = 37
23 quarters
37 dimes
23* .25 = 5.75
37 * .1 = 3.70
5.75 + 3.70 =9.45
Answer:
the answer is 48-24=24. but you can turn it into addition by adding 24+24 then it would have the same answer: 48 feet
Neither of them do,
The first one gives you:
1=-19
The second one gives you:
2=9
Neither of which are true.
Hope this helps :)