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kodGreya [7K]
3 years ago
6

If I had 10 apples and I give 5 away how much do I have left

Mathematics
2 answers:
alexgriva [62]3 years ago
5 0
You would have 5 apples left!

Salsk061 [2.6K]3 years ago
5 0

You will have 5 because if you have 10 to start off with and give away five the sum =

1111111111 - 11111 = 11111

Which could also be written as 10 - 5 = 5

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The perimeter of the semicircle is 25.71 cm. Calculate the value of radius x. Take pi to be 3.142
yan [13]

Answer:

5 cm

Step-by-step explanation:

Perimeter of semicircle =  \frac{1}{2}  \times 2\pi \: x +2x\\ 25.71 = 3.14 2\times x+ 2x\\ 25.71 = 5.14 2 x\\ x =  \frac{25.71}{5.142}  \\ x = 5  \: cm

5 0
3 years ago
When X=18, Y=14. Find the value of x when y=42.<br><br> A) 32<br> B) 18<br> C) -18 <br> D) 54
Karolina [17]

Answer:

D)54

Explanation:

hope this helps you...

4 0
2 years ago
The lenght of sydney's tennis racket is 2 rulers long. How many feet long is sydeney's tennis racket
Katyanochek1 [597]
24 feet wrong cause 1 ruler is 12 in so add 12to12
3 0
3 years ago
There is another way to rank the difficulty of test questions using Networks: Each student gives scores for each problem, then w
Vlad [161]

Answer:

Step-by-step explanation:

Truly, on a single student level, the Massey method can be applied i.e. problems are ranked according to their level of difficulty for a single student.

Let us say there are 4 problems P1, P2, P3, P4 set in an exam where a student has to solve any two.

Assuming student 1 solves and scores more in P1 than in P2, r1>r2

student 2  more in P1 than P4 r1>r4

student 3 more in P2 than P4 r2>r4

student 4 more in P4 than P3 r4>r3

student 5 more in P2 than P3 r2>r3

and such many more cases.

then the Massey's model can be written as

P1 P2 P3  P4

\begin{bmatrix} 1 &-1 &0 &0\\ 1 &-1 &0 &0 \\ 0 &1 & 0 &-1 \\ 0 & 0 &-1 & 1 \\ 0 & 1 & -1 & 0 \end{bmatrix}.

\times \begin{bmatrix}r1 \\r2 \\r3 \\r4 \end{bmatrix}  =

\begin{bmatrix}y_{1} \\ y_{2} \\ y_{3} \\ y_{4}\\ y_{5}\end{bmatrix}.            

If Pi gives more score than Pj, the entry below Pi shall be 1 and below Pj shall be -1.

The rest of the entries shall be 0.

r1,r2,r3,r4,r5 are ranks .  

There may be more rows depending upon more combination of 2 problems.

Should in case more than one student solve the same combination and get scores in the same order, for instance, 12 students solve P1 and P2, for 7 of them r1>r2, then their scores can be averaged.

Normally, such systems are overdetermined, i.e., more rows than the number of unknowns, then it is solved by the Least square method ., as there shall be no a solution with least error is found out.

The overall ranking, in reverse order, shall give the ranking according to increasing difficulty.

7 0
3 years ago
Andre has 4 times as many model cars as Peter and Peter has one-third as many model cars as jade Andre has 36bmodel cars how man
kondor19780726 [428]

Answer:  9

<u>Step-by-step explanation:</u>

Andre has 4 x (the number of cars Peter has).  Andre has 36 cars.

4P = 36

 P = 9

6 0
3 years ago
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