When you have a fraction such as 4/5
that is the same as 4÷5
answer is B
Answer:
Expressions A, E, and F
Step-by-step explanation:
In general, when negative integers are multiplied; if the negative integers are even, then the product would be positive. But if the negative integers are odd, then the product would be negative.
Thus,
A. (−5)(−0.4)(1.8) = (2.0)(1.8)
= 3.6
B. (-45)(-19)(-112) = (855)(-112)
= -95760
C. −1(5+17) = -1(22)
= -22
D. (−5)(−0.4)(1.8)(−3.25) = (2.0)(-5.85)
= -11.7
E. (-49)(-34)(-12)(-12) = (1666)(144)
= 239904
F. −1(3.5−7) = -1(-3.5)
= 3.5
Thus expressions A, E and F have positive products.
Assuming x = nickels, y = quarters
![x + y = 40 \\ 0.05x + 0.25y = 5.20](https://tex.z-dn.net/?f=x%20%2B%20y%20%3D%2040%20%5C%5C%200.05x%20%2B%200.25y%20%3D%205.20)
![x + y = 40 \\ x = 40 - y](https://tex.z-dn.net/?f=x%20%2B%20y%20%3D%2040%20%5C%5C%20x%20%3D%2040%20-%20y)
Substitute that into
![0.05(40 - y) + 0.25y = 5.20 \\ 2 - 0.05y + 0.25y = 5.20 \\ 0.2y = 3.20 \\ y = 16](https://tex.z-dn.net/?f=0.05%2840%20-%20y%29%20%2B%200.25y%20%3D%205.20%20%5C%5C%202%20-%200.05y%20%2B%200.25y%20%3D%205.20%20%5C%5C%200.2y%20%3D%203.20%20%5C%5C%20y%20%3D%2016)
Substitute that into
![x + 16 = 40 \\ x = 24](https://tex.z-dn.net/?f=x%20%2B%2016%20%3D%2040%20%5C%5C%20x%20%3D%2024)
Answer : He has 24 nickels.
Hope this helps. - M
Answer:
I think answer is B Altitude
A.rolling a number cube labeled 1 to 6, and landing on a 2 or 4