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Likurg_2 [28]
3 years ago
14

3x+4y= 12 and 2x-y=8

Mathematics
1 answer:
Anettt [7]3 years ago
4 0

i dont no sorry :(

..................

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Your new job guarantees you an eight percent raise for each year with the company. if your initial salary is $42,200, write an e
expeople1 [14]
42200t*8% maybe I think
5 0
3 years ago
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Justin is pouring a concrete walkway around his grandmother's rectangular garden. He wants the walkway to be 3 feet wide all the
sattari [20]

Answer: The area of the top of the walkway is 1,050 square feet

Step-by-step explanation:

Hi, to answer this question we simply have to apply the next formula:

Area of a rectangle: width x length  (of the base)

Replacing with the values given and solving for A:

A = 25 feet x 42 feet = 1,050 square feet

In conclusion, the area of the top of the walkway is 1,050 square feet

Feel free to ask for more if needed or if you did not understand something.

8 0
2 years ago
The graph below shows the average daily temperatures on January 1 from 1900 to 1934 for city A.
kipiarov [429]

Answer:

25 years

Step-by-step explanation:

Solution:-

- Data for the average daily temperature on January 1 from 1900 to 1934 for city A.

- The distribution X has the following parameters:

                    Mean u = 24°C

                    standard deviation σ = 4°C

- We will first construct an interval about mean of 1 standard deviation as follows:

  Interval for 1 standard deviation ( σ ):                                    

                    [ u - σ , u + σ ]

                    [ 24 - 4 , 24 + 4 ]

                    [ 20 , 28 ] °C

- Now we will use the graph given to determine the number of years the temperature T lied in the above calculated range: [ 20 , 28 ].

           T1 = 20 , n1 = 2 years

           T2 = 21 , n2 = 3 years  

           T3 = 22 , n3 = 2 years

           T4 = 23 , n4 = 4 years  

           T5 = 24 , n5 = 3 years

           T6 = 25 , n6 = 3 years  

           T7 = 26 , n7 = 5 years

           T8 = 27 , n8 = 2 years

           T5 = 28 , n9 = 1 years

- The total number of years:

               ∑ni = n1 + n2 + n3 + n4 + n5 + n6 + n7 + n8 + n9

                     =  2 + 3 + 2 + 4 + 3 + 3 + 5 + 2 + 1

                     = 25 years          

3 0
2 years ago
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Three hundred seventeen kids went on a field trip last
arlik [135]

Answer:

310 kids/ 6 busses

310/6=51.6 so

52 or 51 kids on each bus.

3 0
2 years ago
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J is the midpoint of KL. The coordinates of J are (-8,7) and the coordinates of K are (3,4) find the coordinates of L. (show wor
musickatia [10]
Assuming linear.
if k is at (3,4) and j is at (-8,7)
set. (y1,x1) and(y2,x2)

[(y2-y1),(x2-x1)]
[(-8-3),(7-4)]
distance from k to j is (-11,3)

now take coordinates of j and distance from. k->j and add them to get coordinate for L

[(-11+(-8)),(7+3)]= (-19,10)=L
7 0
3 years ago
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