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sashaice [31]
3 years ago
15

Ron predicts he will use 115 nails on the desk he is building. If Ron only uses 84 nails, what is Ron's percent error? Round you

r answer to the nearest tenth.
Mathematics
2 answers:
-BARSIC- [3]3 years ago
4 0
The answer is 27 percent error
leonid [27]3 years ago
4 0

Answer: 36.9


Step-by-step explanation:


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Can someone help me plzz​
Wittaler [7]

Answer:3

Step-by-step explanation:

A. 2^4(4n) = 2^48

2^16n = 2^48

16n = 48

n = 3

5 0
3 years ago
a pool tank fills 60 gallons of water in 1/5 of an hour. How many gallons of water can be filled up in 1 hour?
klasskru [66]
If it takes 1/5 hour to fill 60 gallons
than multiply the fraction by 5 to get a whole hour
and multiply the 60 gallons by 5 to get the amount of water created in that hour
60*5= 300 gallons of water in 1 hour
5 0
3 years ago
Read 2 more answers
Find x from given equations sin30 + 2 cot^2 30 + x cos^2 30= 8+ tan^2 45 + cos 60​
julia-pushkina [17]

Answer

1/2+2×(sqrt3)^2+x.(sqrt3/2)^2=8+1^2+1/2

1/2+2×3+x.3/4=8+1+1/2

1/2-1/2+6+x.3/4=9

x.3/4=9-6

x.3×4=3

x.3=3×4

x.3=12

x=12/3

x=4.

so, the value of x is 4.

hope it helps you.

4 0
3 years ago
Mai travels 90 miles in 2 hours by boat. At this rate,how far does Mai go in 3 hours?
Marysya12 [62]

Answer:

135 miles in 3 hours

Step-by-step explanation:

5 0
3 years ago
Calculate the number of ways to form a set of three distinct items such that no two of the selected items are in the same row or
Eddi Din [679]

Answer:

1200

Explanation:

Order does not matter, if we said xyz order, it would still not make a difference if it was zyx or yzx hence we use the combination formula:

nCr = n! / r! * (n - r)!

where n= total number of items

r= number of items chosen at a time

Combinations are used when the order of events do not matter in calculating the outcome.

We calculate using the formula:

(30×20×12)÷3!=1200

There are therefore 1200 ways for the three distinct items to not be in same row or column

8 0
3 years ago
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