Answer:
the answer is x=6
Step-by-step explanation:
5x+4+8x-3=79
13x+1=79
13x=78
x=6
15 bags you will only use 14 full bags and use some of the 15th bag
Answer:
(4x+1)(2x^2-5)
Step-by-step explanation:
Answer: 300 dollars off
Step-by-step explanation:
522.54 / 0.55 = 287.4
Which is less than 300 dollars off
Refer to the diagram shown below.
The height of the pole is CD (3 m), and its shadow is AB (1.22 m).
The height of the building is h m, and its shadow is AD (38.5 m).
The two triangles ΔABC and ΔADE are similar because of AAA.
Therefore

Cross multiply.
1.22 h = 3*38.5 = 115.5
h = 115.5/1.22 = 140.91 m
Answer: 141 m (nearest meter)