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aliina [53]
3 years ago
9

I NEED HELP PLEASE!!!! THANK

Mathematics
1 answer:
Feliz [49]3 years ago
4 0
The symbols around the numbers in the list are absolute value bars.. they refer to the actual distance the number inside is away from "0" on a number line.  Since we always represent distance in positive terms, we can really assume the list will be  2,3, 7, 4....

the average of this list can be found by adding the 4 numbers and dividing by 4:
16 ÷ 4 = 4
You might be interested in
4 loads of stone weigh 2/3 ton. Find the weight of 1 load of stone.
Vladimir79 [104]

To find the weight of 1 load of stone, divide 2/3 by 4.

To divide fractions, use keep change flip.

Keep the first fraction the same, change the division sign into a multiplication sign, and flip the second fraction.

I attached the work and answer for this problem. If you have any questions please feel free to ask.

Hope this helps.

7 0
3 years ago
Train a is 14 mph slower than train B. Train A travels 220 miles in the same time train B travels 290 miles. Find the speed of b
djverab [1.8K]
Recall your d = rt, distance = rate * time

if say train B has a speed of "r", then A has a speed of "r-14".

now, they each travelled those miles in the same time, say "t" hours.

\bf \begin{array}{lccclll}
&\stackrel{miles}{distance}&\stackrel{mph}{rate}&\stackrel{hours}{time}\\
&-----&---&----\\
\textit{Train A}&220&r-14&t\\
\textit{Train B}&290&r&t
\end{array}
\\\\\\
\begin{cases}
220=t(r-14)\\
290=rt\implies \frac{290}{r}=\boxed{t}\\
----------\\
220=\boxed{\frac{290}{r}}(r-14)
\end{cases}
\\\\\\
220=\cfrac{290(r-14)}{r}\implies 220r=290r-4060\implies 4060=70r
\\\\\\
\cfrac{4060}{70}=r\implies 58=r

how fast is Train A?  well, r - 14.
7 0
3 years ago
Hey math can you help
HACTEHA [7]
So if we’re talking about meters per second, you would need to divide.

-17.5/5 = -3.5

NOW YOU THINK THATS YOUR ANSWER BUT NOO. You CANNOT have a negative second. So you take the absolute value of -3.5 and your answer would be 3.5

The rate of the anchor is 3.5 meters per second.
3 0
3 years ago
5. A softball has a diameter of 8.3 in. How many softballs will fit inside of a storage unit 4 that is 15 feet wide, 10 feet lon
Westkost [7]

Answer:

4329 softballs

Step-by-step explanation:

To find the number of softballs that will fit into the container, we first find the volume of the softball. Since it is a sphere, its volume V = 4πr³/3 where r = radius = d/2 where d = diameter of softball.

So, V = 4π(d/2)³/3 = πd³/6

Since d = 8.3 in,

V =  πd³/6 =  π(8.3 in)³/6 = π × 571.787 in³/6 = 299.39 in³

The volume of the box, V' = 15 × 10 × 5 ft³ = 750 ft³ = 750 × (12 in)³ = 750 × 1,728 in³ = 1,296,000

So, for n softball to fit, its volume must equal the volume of the storage unit.

The volume of n softballs is nV.

For the softballs to fit, V' = nV

n = V'/V

= 1,296,000 in³/299.39 in³

= 4328.8 softballs

≅ 4329 softballs since we cannot have a decimal number of softballs.

7 0
3 years ago
1. Olivia is trekking for 17.4 km at a bearing of N38°E.
andrezito [222]
4. Volume is 5 cubed = 125cm^3
Surface area is 25x6=150cm^2

5. 50-((3x4.50)+(2x3.75)+(4x4.20))

7. 2n(4m+3)

6. 6a - 15

8. 3.14

9. 247.46

10. 1349.00
6 0
3 years ago
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