Answer: $10
Step-by-step explanation:
Given
Robin and his four friends bought tickets for
each
If each one of them bought a calculator then the total spendings are ![\$110](https://tex.z-dn.net/?f=%5C%24110)
Suppose the cost of each calculator is ![\$\ x](https://tex.z-dn.net/?f=%5C%24%5C%20x)
Cost per person is given by ![x+\$12](https://tex.z-dn.net/?f=x%2B%5C%2412)
For the group, it is ![5(x+12)](https://tex.z-dn.net/?f=5%28x%2B12%29)
Equate this to total spendings
![\Rightarrow 5(x+12)=110\\\Rightarrow x+12=22\\\Rightarrow x=\$\ 10](https://tex.z-dn.net/?f=%5CRightarrow%205%28x%2B12%29%3D110%5C%5C%5CRightarrow%20x%2B12%3D22%5C%5C%5CRightarrow%20x%3D%5C%24%5C%2010)
thus, the cost of each calculator is ![\$ 10](https://tex.z-dn.net/?f=%5C%24%2010)
Answer:
1. 8
2. -1/2
i dont know how to do the other problems, but i did know how to solve the 1st 2 questions. hope it helped :)
Step-by-step explanation:
Answer:
23 m
Step-by-step explanation:
The mnemonic SOH CAH TOA reminds you of the relationships between angle functions and side measures in a right triangle. The geometry of this problem can be modeled as a right triangle with one leg (h) equal to the height of the pole, and one leg (21 m) that is the shadow length on the ground. The angle of the sun's rays is the angle opposite the h leg, so we can use ...
Tan = Opposite/Adjacent
tan(48°) = h/(21 m)
h = (21 m)tan(48°) ≈ 23.32 m
The height of the flagpole is about 23 meters.
Answer:
-7 increased by 7 (-7+7=0)
7 decreased by 7 (7-7=0)
Step-by-step explanation:
The others were wrong, I showed what they added up to.
7+0=7
7-0=7
-7-7=-14