Positive 37,000 feet.
Step-by-step explanation:
Cross multiply to solve
(-3r)(4)=(-27)(2)
Multiply on both sides
-12r=-54
Divide both sides by -12
r=4.5
Final answer: r=4.5
Check:
-3(4.5)= -13.5
-13.5/2= -6.75
-27/4=-6.75
Answer:
Step-by-step explanation:
Formulas to know:
- Area of a circle:
- Circumference of a circle:
Since we know the circumference, we can use formula for the circumference of a circle to find the circle's radius:
Now we can plug in into the formula for an area of a circle:
To solve this problem, we must figure out how many kilograms of rice Alice bought. To do this, we should multiply how many total bags of rice Alice bought by the weight of each bag.
Alice bought 14 bags of white rice and 4 bags of brown rice. Because 14+4=18, Alice bought 18 bags of rice total.
Next, we should multiply Alice’s 18 bags of rice by the 7 kg weight per bag.
18*7=126
This means that the answer is A. 126 kilograms.
Hope this helps!