Hi!
I think Grace needs to wash at least 6 cars. Please tell me if I'm wrong.
Thank you
Answer: y is 40 x is 60
Step-by-step explanation:
Answer:
The FitnessGram™ Pacer Test is a multistage aerobic capacity test that progressively gets more difficult as it continues. The 20 meter pacer test will begin in 30 seconds. Line up at the start. The running speed starts slowly, but gets faster each minute after you hear this signal. Ding A single lap should be completed each time you hear this sound. Ding Remember to run in a straight line, and run as long as possible. The second time you fail to complete a lap before the sound, your test is over. The test will begin on the word start. On your mark, get ready, ding
Step-by-step explanation:
I think what you meant here is that the limestone is in a shape of a square pyramid. Knowing the shape, we must also know the formula for its volume:
V=s²h/3, where
s is the side of the square base
h is the vertical height of the pyramid
First, you find the area of the base s² from the known volume of the larger pyramid.
16,000 = s²(30)/3
s² = 1,600
Then, assuming both pyramids have equal areas of bases, we can use this value for the smaller pyramid. We can determine its volume to be
V = (1,600)(24)/3 = 12,800
Thus, the scale factor for the small pyramid to the big pyramid is 12,800/16,000 or 4/5.
