gabbie63
06.10.2019 •
Mathematics
Asandwich shop loses $1.20 every time somebody buys a sandwich, but makes $1.80 every time somebody buys a drink. one day, the shop sells 100 drinks, and makes a profit of over $100. which are possible numbers of sandwiches the shop could have sold? check all that apply.
a. 0 sandwiches
b. 40 sandwiches
c. 60 sandwiches
d. 70 sandwiches
e. 80 sandwiches
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Ответ:
A, B, and C
I think. Please let me know if wrong.
Heres what i did:
1.8 x 100 = 180.
180 - 80 = 100
(they made over 10 in profit)
A. 1.2 x 0 = 0
B. 1.2 x 40 - 48
C. 1.2 x 60 = 72
D. 1.2 x 70 = 84
E. 1.2 x 80 =96
D and E bot Exceed 80 so it has to be AB and C
Hope this Helps ☺
Ответ:
A,b,c
Step-by-step explanation:
P=1.8d-1.2s
P=180-1.2s
100=180-1.2s
-80=-1.2s
66.7=s
If they sold ≥67 sandwiches, p<100
If they sold ≤66 sandwiches, p>100
Therefore A, B and C are correct
Ответ:
To multiply fractions you have to move to the left so multiply the numerator by the numerator and the denominator by the denominator.
Now reduce:
(optional) Change into a mixed number:
The answer is "1 3/8 or 11/8."
Hope this helps.