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Alex17521 [72]
3 years ago
12

Which expression is equivalent to 30(1/2x-2)+40(3/4y-4)?

Mathematics
1 answer:
Anna11 [10]3 years ago
8 0

Answer:

808935(+57_)/868

628)+6_-674'+7 36;()87&daimatere

Step-by-step explanation:

fish kkgcjojbcryihcxf

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Which explains whether or not the values in the table represent a direct variation?
Assoli18 [71]

Answer:

This function represents a direct variation because it passes through the origin and has a constant rate

4 0
3 years ago
3a=a+36 find the value of a
e-lub [12.9K]

Answer:

a=18

Step-by-step explanation:

3 0
3 years ago
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3 to the third power minus 2 times 3 plus 5
Dahasolnce [82]

Answer: 26

<u>Step 1</u>

27-(2)(3)+5

<u>Step 2</u>

<u></u>27-6+5<u></u>

<u></u>

<u>Step 3</u>

<u></u>21+5<u></u>

<u></u>

5 0
3 years ago
el jefe decidió agregar la tabla de frecuencias correspondiente a la edad de sus empleados tal Como se muestra a continuación Cu
lapo4ka [179]

Answer:

Average employee [Mean] = 43.6

Step-by-step explanation:

Given:

Interval   Number of employee

25-35                      20

35-45                      7

45-55                      8

55-65                     15

Total                       50

Find:

Average employee [Mean]

Computation:

Interval     X[u+l]/2 Number of employee   fx

25-35         30           20                              600

35-45         40             7                              280

45-55         50            8                              400

55-65         60            15                             900

Total                           50                            2,180

Average employee [Mean] = Sum of fx / Sum of x

Average employee [Mean] = 2,180 / 50

Average employee [Mean] = 43.6

5 0
3 years ago
A student is running a 3-kilometer race. He runs 1 kilometer every 2 minutes. Select the function that describes his distance fr
Sliva [168]
Total distance: d = 3 km

Minutes run: x

Distance run = (1 km / 2 minutes) * x = (1/2)x

Distance from the finish line = total distance - ditance run = 3 - (1/2)x =

= - (1/2)x + 3

Answer - (1/2)x + 3
8 0
3 years ago
Read 2 more answers
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