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2 years ago

If the mean of this data is 95, find the missing data 103,99,90,86,105,96 what is the missing data

1 answer:

3 0

Let, the missing number = x
Then, 103 + 99 + 90 + 86 + 105 + 96 + x / 7 = 95
579+x = 665
x = 665 - 579
x = 86

In short, Your Answer would be 86

Hope this helps!

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The cost of 4 belts and 5 ties is $247. Each time costs 3 times as much as a belt. What us the total cost of 1 belt and 1 tie

Makovka662 [10]

Answer:

The total cost of 1 belt and 1 tie is $13 and $39 respectively.

Step-by-step explanation:

Given that,

The cost of 4 belts and 5 ties is $247.

Each tie costs 3 times as much as a belt.

Let the cost of a belt is x and that of a tie is y.

ATQ,

4x + 5y = 247 ...(1)

y = 3x ....(2)

Put the value of y from equation (2) in equation (1)

4x + 5(3x) = 247

4x + 15x = 247

19x = 247

x = 13

Put the value in equation (2)

y = 3x

= 3(13)

= 39

So, the total cost of 1 belt and 1 tie is $13 and $39 respectively.

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2 years ago

What's the answer for this equation 1/3(y+7)=3(y−1)

Dominik [7]

Answer: -(3y*3(y+7)+1=0

6 0

2 years ago

PLEASE HELP ME OUT!!

SVEN [57.7K]

Answer:

i believe its C

Step-by-step explanation:

8 0

2 years ago

Find 2.4% of $109. Show work.

Alex73 [517]

Answer:

$2.62

Step-by-step explanation:

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6 0

2 years ago

Y is inversely proportional to 7I+x.<br>When x = 8, y = 2.<br>Find y when x= 15.

const2013 [10]

I am taking 7I+x to mean 71+ x.

Answer: y=1.837

Step-by-step explanation:

Step 1

Let y is inversely proportional to 7I+x be mathematically be written as

y ∝ 1/7I+x

Introducing our proportionality of constant , K we have that

y ∝ 1/7I+x

y =K 1/7I+x

y= K/ 7I+xh

Step 2

so when x= 8, and y =2, k becomes

y= K/ 7I+x

k= y x (7I+x)

=2 x (71 + 8)

2x 79

=158

when x= 15, y =?

y= K/ 7I+x

y= 158/ 71 + 15

y=158/86

y=1.837

6 0

2 years ago