Answer:
See explanation
Step-by-step explanation:
Todd has a new spool of wire. He needs 48 pieces of wire, each 22 feet long. He estimates that he needs 50×20=1000 feet, and he concludes that 1 spool with 1000 feet will be enough.
Actually, Todd is incorrect because in his estimation he took 2 more pieces than he needed of the length 2 feet shorter that he needed. The total length may appear smaller. Check this:
So, Todd shouldn't use multiplication 50×20=1000 to estimate the total amount of wire he needs.
The required mass of aquarium when it is half full of water is 10 kg.
Mass of the aquarium = 5kg
Length = 25 cm, width = 20 cm and height = 10 cm(when half filled)
<h3>What is volume?</h3>
Volume, is defined as the ratio of the mass of object to its density.
Since, density of the water = 1000 Kg/m³
Now Mass of the water = Volume x density
= 25/100 x 20/100 x 10/100 x 1000
= 0.005 x 1000
= 5 kg
Now, the total mass of the aquarium when half filed by water.
= mass of water + mass of aquarium
= 5 + 5
= 10 kg
Thus, the required mass of aquarium when it is half full of water is 10 kg.
Learn more about Volume here:
brainly.com/question/1578538
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Well, again <span>y=5x+4 is in slope-intercept form, therefore </span>
.
so then, a parallel line to a line with that equation, will also have the same slope, therefore, what's the equation of a line whose slope is 5 and goes through 8, -2?
Answer:
<u>84 students </u>
Step-by-step explanation:
See the attached table
As shown there are 20 students from Math club, 7 of them would like to choose calculators.
so, the probability of students who choose calculators = 7/20
If there are 240 students in the Math club
So, the number of students expected to choose calculators = 240 * 7/20
<u>So, the number of students = 84 students </u>
Mean is 750 and mode is 850
