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olga nikolaevna [1]
3 years ago
7

-3+4u=-31 solve for u

Mathematics
1 answer:
solniwko [45]3 years ago
8 0

Answer:

u = -7

Step-by-step explanation:

-3+4u=-31

Add 3 to each side

-3+3 +4u = -31+3

4u = -28

Divide each side by 4

4u/4 = -28/4

u = -7

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(a) 34 is 85% of what number?<br> (b) What is 15% of 80?
lana [24]

Answer:

A. 40.          B.12

Step-by-step explanation:

40/34=.85

80*.15=12

6 0
2 years ago
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Find the value of t perimeter
Natali5045456 [20]

Answer:

<h2><em><u>t = 15.2 is the answer</u></em></h2>

Step-by-step explanation:

<h2><em><u>1. Make an equation</u></em></h2>

numbers to find perimeter = perimeter

Side + Side + 2 unknown sides = perimeter

12 + 7.8 + 2t = 50.2

<h2><em><u>2. Simplify like terms</u></em></h2>

19.8 + 2t = 50.2

<h2><em><u>3. Solve</u></em></h2>

19.8 + 2t = 50.2

-19.8        - 19.8

2t = 30.4

<h2><em><u>t = 15.2</u></em></h2>

<h2><u><em>4. Check:</em></u></h2>

12 + 7.8 + t + t = 50.2

12 + 7.8 + (15.2) + (15.2) = 50.2

<h2><em><u>50.2 = 50.2</u></em>   Correct!</h2><h2 />

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Kavitha

7 0
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Find the mean of the data: 14, 9, 2, 13, 16, 3, 13, 10
svp [43]
<span>14+ 9 + 2+ 13+ 16+3+ 13+ 10 = 80
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answer
mean = 10

</span>
7 0
3 years ago
In a sales effectiveness seminar, a group of sales representatives tried a few approaches to selling a new automobile to a custo
Ksju [112]

Answer:

1. P(S) = 373/580

2. P(S|A) = 53/116

3. P(S|Pa) = 481/580

Step-by-step explanation:

Given

---------------------Sale ----- No Sale-----Total

Aggressive ----265 --------315 ----------580

Passive ----------481 ---------99 -----------580

Total --------------746---------414------------1160

A = aggressive approach,

Pa = passive approach,

S = sale,

N= no sale.

(a) Computing P(S)

This is calculated as the division of customers that participated in sales by total customers

Customers that participated in sales = 265 + 481 = 746

Total Customers = 1160

P(S) = 746/1160

P(S) = 373/580

b.

P(S|A) means that the probability that a sales occur given that the aggressive method was used.

To solve this, we check the cell where Sales and Aggressive intersect

The cell element = 265

Total = 580

P(S|A) = 265/580

P(S|A) = 265/580

P(S|A) = 53/116

c.

P(S|Pa) means that the probability that a sales occur given that the passive method was used.

To solve this, we check the cell where Sales and Passive intersect

The cell element = 481

Total = 580

P(S|Pa) = 481/580

8 0
3 years ago
What is m A.18<br> B.54<br> C.126<br> D.108
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