Step-by-step explanation:
Diameter=24 in
Radius=12 in
Height=30 in
volume of the cone = 1/3πr²h
= 1/3(12)²×30π
= 1440 π in³
Answer:
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rk3hjktnevmlegkp3q
Step-by-step explanation:
<span>To state what fraction of 1 quart is 3 cups, you must use the fact that 1 quart is 4 cups. This means that the total unit, 1 quart, is equivalent to 4 cups. Then, you use 4 cups as the total unitl or the denominator of the fraction, and 3 is the numeratior = 3/4. Also you can think that you need 3 cups out of 4 cups is 3/4.</span>
Hello :
the equation 3x^2+4x-7=0 has 2 solutions because : ac <span>< 0
a = 3 b=4 c= -7
</span>Δ = b²-4ac....... b² ≥ 0 and -4ac > 0 ..... (ac < 0 )
coclusion : Δ>0.....(2 solutions)
Answer:
a. So the electric guitar is sold for a sale price of $315 after the discount. The discount was 30%. Even though we get that amount off, we still pay 70% of the original price, because 100% (original price) - 30% is 70%.
b. An equation that can help us find the regular price of the item is through writing and solving a proportion. Set it up like this:
315/x = 70/100
This is because 315 is part of the whole and is 70% of the value of x.
Step-by-step explanation:
Okay. Let's solve this by cross multiplying the values. 315 * 100 is 31,500. 70 * x is 70x. That simplifies to 31,500 = 70x. Didivde each side by 70 to isolate the x. 70x/70 cancels out. 31,500/70 is 450. Let's check this by multiply the number by 70% and see what happens. 450 * 70% (0.7) is 315. There. x = 450. The regular price was $450.
