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Oxana [17]
3 years ago
11

Someone help work out the mean!!

Mathematics
2 answers:
GenaCL600 [577]3 years ago
4 0

Answer:

8.2

Step-by-step explanation:

melamori03 [73]3 years ago
3 0
40/5= 8 is the mean..........
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Draw the reflected image of ABCD over line 1.
marusya05 [52]
Can you post the image?
5 0
3 years ago
Can someone please help me I don’t understand how to do it
Juli2301 [7.4K]

Answer:

Step-by-step explanation:

x^2 + 2x - 3 = (1)^2 + 2(1) - 3 = 0 for x = 1

                       (2)^2 + 2(2) - 3 = 5 for x = 2

                        (3)^2 + 2(3) - 3 = 12 for x = 3

x^3 + 5 = (1)^3 + 5 = 6 for x = 1

               (2)^3 + 5 = 13 for x = 2

               (3)^3 + 5 = 32 for x = 3

x^2 + 5x + 4 = (1 )^2 + 5(1) + 4 = 10 for x = 1

                       (2)^2 + 5(2) + 4 = 18 for x = 2

                        (3)^3 + 5(3) + 4 = 46 for x = 3

                   

4 0
3 years ago
Read 2 more answers
At the bargain store , Tanya bought 3 items that each cost the same amount. Tony bought 5 items that each cost the same amount b
Afina-wow [57]

Answer:

"Tanya bought 3 items that each cost the same amt"

"Let x represent the cost of one of Tanya's items"

  So, Tanya bought 3 items, costing x+x+x = 3x

  Note that (number of items)*(cost per item) = (number of items)*(cost/item) = cost,   [item cancels out]

 

"Tony bought 4 items that each cost the same amt, but each was $2.25 less than the items Tanya bought."

 The cost for Tony's items was:  (x-2.25)+(x-2.25)+(x-2.25)+(x-2.25) = 4*(x-2.25)

 

"Tanya and Tony paid the same amt. of money"

   This is an equation (the same amount means equals)

    Tanya's cost = Tony's cost

a.) Write an equation. Let x represent the cost of one of Tanya's items

          3x      =     4(x-2.25)

 

Now, the math:

b.) Solve the equation. Show your work.

          3x      =     4(x-2.25)

          3x  =  4x - 9.00                 [distributive principle; multiply]

         -x = -9.00                      [subtract 4x from both sides; option, could instead add 9.00, then subtract 3x from both sides, getting 9.00=x]

          x = 9.00           [multiply both sides by (-1)]

                 [note:  to "solve for x" means to find the value(s) of x that make the equation true,

                          so let's see if it is true --]

c.) Check your solution. Show your work.

  Is              3x      =     4(x-2.25), when x=9.00    ?

          3(9.00) = 4(9.00-2.25)    ?

           27.00 = 36.00 - 9.00    ?

             27.00 = 27.00    ?yes

 

d) State the solution in a complete sentence.

     The problem started with:  "Tanya bought 3 items that each cost the same amt. Tony bought 4 items that each cost the same amt, but each was $2.25 less than the items Tanya bought. Both Tanya and Tony paid the same amt. of money."

     I would write:   "Tanya bought 3 items, each costing $9.00.  Tony bought 4 items, each costing $6.75.  Tanya and Tony each paid $27.00."  

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
BRAINLIESTTT ASAP!!!!!<br> HELP PLEASE!!! I’ll appreciate it so much!
dezoksy [38]
100% + 1.8% = 101.8%
101.8% = 101.8/100 = 1.018

1) 450 * 1.018 = 458.10   in one month
2) 458,1 * 1.018 ≈ 466.35   in two months
3) 466,35 * 1.018 ≈ 474.74   in three months
4) 474,74 * 1.018 ≈ 483.29   in four months
.........................................

Answer: D.
6 0
3 years ago
What is 39,800,000 in scientific notation? A. 3.98 x 10 B. 398 x 10 C. 3.98 x 10 D. 39.8 x 10
Masteriza [31]

Answer:

3.98 x 10^7

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
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