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Tju [1.3M]
2 years ago
5

X–2 1/2=6 3/4. X=? x – 3.23 = 0.77. X=?

Mathematics
2 answers:
Over [174]2 years ago
5 0

Answer:

x= 105/4

x=4

Step-by-step explanation:

BlackZzzverrR [31]2 years ago
4 0

x-2\frac{1}{2} =6\frac{3}{4}      

   +2\frac{1}{2}   +2\frac{1}{2}       add 2\frac{1}{2} on both sides.

__________     solve for 6\frac{3}{4}+2\frac{1}{2}.

x=9\frac{1}{4}, final answer.

x - 3.23 = 0.77

   +3.32   +3.32     add 3.23 on both sides.

____________    solve for 0.77 + 3.23.

x=4, final answer.

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The data set below represents the ages of 11 kids in an after-school program. 10, 11, 8, 7, 6, 10, 7, 10, 9, 9, 12 Which box plo
Andreas93 [3]

Answer:

This is the answer because you need to find mean median mode range, first quertile, third quartile

Whisker plot below

Step-by-step explanation:

Mean (Average) 9

Median 9

Range 6

Mode 10, appeared 3 times

Geometric Mean 8.8206311297046

Largest 12

Smallest 6

Sum 99

Count 11

■ 1st quartile (lower quartile) = 7.5

■ 2st quartile (median) = 9

■ 3st quartile (upper quartile) = 10

8 0
3 years ago
(14, -8 ) and (7, -6)
Aleksandr [31]

Answer:

-0.28

Step-by-step explanation:

(-6)-(-8)=2.

7-14=-7

2/-7=-0.28

5 0
3 years ago
Read 2 more answers
A manufacturer is planning to sell a new product at the price of 210 dollars per unit and estimates that if x thousand dollars i
sattari [20]

Answer:

Development costs: $2757

Promotion costs: $3155

Step-by-step explanation:

This might seem like a two-variable problem, but in actuality it's not - because the demand function is a sum of two components, each being independent and using only one variable, we can solve for the two separately.

Moreover, the price per unit and cost per unit is constant, so each product yields exactly $80 ($210 - $130).

Let's solve separately.

We need to maximize:

$80 * 160y/(y+4) - 1000y = $12800 * y/(y+4) - $1000*y

$80 * 170x/(x+7) - 1000x = $13600 * x/(x+7) - $1000*x

Let's go:

$12800 * y/(y+4) - $1000*y = $12800 * (1 - 4/(y+4)) - $1000y = $12800 - $51200/(y+4) - $1000*y

we analyze the derivative. $12800 is a constant, so we can skip it. Derivative of 1/(y+4) is -(y+4)^-2, derivative of $1000y is $1000.

deriv = $51200/(y+4)/(y+4) - $1000

We find the changepoints by analyzing $51200/(y+4)/(y+4) - $1000 = $0. We don't need to worry about y+4 = 0 because we cannot spend negative money on development/advertisement.

(y+4)^2 = $51.2

y+4 ~= 7.155417528 (or -y-4 = 7.1554... but it doesn't make sense because negative budget so we don't analyze).

y ~= 3.155417528

lastly, we should check that it's actually a maximum there - but it is, the original function goes to negative infinity.

rounding $1000y to the nearest dollar gives us $3155

Let's do the same for x:

$13600 * x/(x+7) - $1000*x = $13600 * (1 - 7/(x+7)) - $1000x = $13600 - $95200/(x+7) - $1000*x

deriv = $95200/(x+7)/(x+7) - $1000

$95200/(x+7)/(x+7) - $1000 = $0

(x+7)^2 = 95.2

(x+7) ~= 9.75704873412

x ~= 2.75704...

rounding $1000x to the nearest dollar yields $2757

3 0
3 years ago
ANSWER FOR BRAINLIEST AND 72 POINTS
kumpel [21]

Answer:

A

Step-by-step explanation:

the probability should always be the same unless the event is different.

6 0
3 years ago
A baseball team lost 4 more games than it won. If the team played 46 games, how many did it lose? How many did it win?
blsea [12.9K]
The team won 27 games and lost 19
4 0
3 years ago
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