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mars1129 [50]
2 years ago
14

A student solved this problem and said the answer was 8 1/4 feet. Jenny had three pieces of rope. One piece was 3 1/2 ft long, a

nother was 2 1/4 ft long, and the third piece was 2 1/2 ft long. How much rope did Jenny have in all? Is the student's answer reasonable?
A. Yes, the answer is reasonable.

B. No, the answer is not reasonable. It should be about 2 feet.

C. No, the answer is not reasonable. It should be about 5 feet.

D. No, the answer is not reasonable. It should be about 15 feet.
Mathematics
2 answers:
Morgarella [4.7K]2 years ago
5 0
The actual answer is A because if you add 3 1/2 and 2 1/2 it's 6 and 6+2 1/4 is 8 1/4
Zigmanuir [339]2 years ago
3 0
The answer would be B hope I helped u out!!!!!☺☺☺☺☺☺
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Help asap pls -=-=-=-=--------------
bixtya [17]

Answer:

-1/3

Step-by-step explanation:

at x=0 y= 5

at x=3 y= 4

y=ax+b

b= 5

4=3x+5

3x= -1

x= -1/3

y =  -  \frac{x}{3}  + 5

5 0
3 years ago
Which is irrational?
sladkih [1.3K]

Answer:

  (b)  √5

Step-by-step explanation:

The square root of an integer is rational if the integer is a perfect square. You probably know the first few perfect square integers are 1, 4, 9, 16, 25, 36, ...

The integer 5 is not on that list, so its square root will be irrational.

  √5 is irrational

5 0
2 years ago
What is the same value as 32 tens
elixir [45]

320 has the same value as 32 tens.

5 0
2 years ago
Read 2 more answers
Rosie wants to make a cube with rectangular blocks each measuring 6cm by 3cm by 8cm. Find the least number of blocks she must us
Marysya12 [62]
Hello,

lower commun multiple(3,6,8)=24 (blocks)
================================



4 0
2 years ago
Continuation of the other six questions find the value of eggs and tangent 
n200080 [17]

Answer:

Step-by-step explanation:

1) ?

I can't see what that one given angle is ..  but it's that  mystery angle subtracted from 180 give the angle   BOA   then you know that's an isosceles triangle again that the BOA is part of... so then just subtract BOA from 180 to find the two other angle of that triangle... they are the small so just divide your answer of  180-BOA /2 is the angle of each.. then since you know those to smaller angles subtract one from 90  to find the angle BAX

2) ( as we would read normally)

You're making this really tough on me.. I can just barely read the equations

I think it's  1+6x  and 7x-3  .  b/c they are the same length sides you can set those equal

1+6x = 7x -3

4+6x = 7x

4 = x

that worked out well :

for the tangent..   it's   Tan(Ф)= Opp/ Adj

but I don't know which side they want to solve for.. I think you may have left off some of the instructions????  :/

ohh I think they really mean.. what's the length of the tangent lines .. that was confusing to me.. :/ just plug in 4 into x for either eq.

1+6(4) = 25

or

7(4)-3=25

tangent is 25

3)

x-2 = 2x-10

x+8 = 2x

8 = x

again they made it work out easy :)

Then plug 8 into either equation to find the length of the tangent lines

8-2=10

tangent is 10

4) = 2)   ??? they are the same question  maybe  you meant to put something else?

5 0
2 years ago
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