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jek_recluse [69]
3 years ago
12

Could you help me solve by using elements in a set? In a survey of 250 business executives, 40 said they did not read money, for

tune, or business week, while 120 said they read exactly one of these three and 60 said they read exactly two of them. How many read all three?
Mathematics
1 answer:
saw5 [17]3 years ago
6 0

Answer:

30

Step-by-step explanation:

250 - 40 - 120 - 60 = 30

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A square picture with sides of 32 inches is to be mounted on a square mat with sides of 52 inches. Find the area of the mat that
Andreas93 [3]

Answer:

52^2 - 32^2 = 1680 inches²

7 0
3 years ago
/ has vertices at (–5, 1) and (–3, 7). After a transformation, the image had endpoints at (3, –1) and (5, 5). Describe the trans
Pie
1st point: ( -5+8. 1-2 ) = ( 3, -1 )
2nd point: ( -3+8, 7-2 ) = ( 5, 5 )
Answer: C) translation right 8 units and down 2 units. 
3 0
3 years ago
Find the sum of the summation of 3 i minus 15, from i equals 2 to 7.
Mrac [35]
The summation symbol means we use the variable i in the equation from the given range. In this case, we are given with the equation 3 i - 15 and i ranges from 2 to 7. The summation using simply the calculator is equal to -9. The answer to this problem is -9.
3 0
3 years ago
Read 2 more answers
2<br>Decrease R420 in the ratio 4:7​
Oxana [17]

Step-by-step explanation:

Let the numbers are 4x and 7x. According to the question if each number is increased by 20, the ratio becomes 7 : 9.

Then,

( 4x + 20 ) : ( 7x + 20 ) = 7 : 9

9( 4x + 20 ) = 7( 7x + 20 )

9( 4x ) + 9( 20 ) = 7( 7x ) + 7( 20 )

9( 20 ) - 7( 20 ) = 7( 7x ) - 9( 4x )

2( 20 ) = 49x - 36x

40 = 13 x

40 / 13 = x

Therefore, number are :–

4 x = 4( 40 / 13 ) = 160 / 13

7 x = 7( 40 / 13 ) = 280 / 13

4 0
3 years ago
26. 4x + 6/2 = 3x +15/3
Arturiano [62]

Answer:

x=2

Step-by-step explanation:

Hope it helps you!

4 0
3 years ago
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