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3 years ago

One more question (-8)+___=-17

Mathematics

2 answers:

seropon [69]3 years ago

8 0

Answer:

-9

Step-by-step explanation:

tigry1 [53]3 years ago

7 0

Answer:

-9

Step-by-step explanation:

-8 +___= - 17

___=-17 +8

___=-9

=-9

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5x-4+2x=3

yuradex [85]

Alright so 5x-4+2x=3 so we are solving for x so 5x+3x=7x so you are left with 7x-4=3 then you add 4 to 3 on the other side that leaves you with 7x=7 so then divide 7 from 7 then you will get x=1

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A putt putt course offers a deal that when you purchase 10 rounds of golf, you get 1 round for free. if you played a total of 35

natima [27]

35/11 = 3.18.....

This means that out of 35 rounds only 3 of them were free because every 11 rounds 1 is free.

so 35-3=32

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3 years ago

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Y= -5x-10 y=6x+12 solve by substitution

Mamont248 [21]

Answer:

(-2,0) x=-2 y=0

Step-by-step explanation:

Solve for the first variable in one of the equations, then substitute the result into the other equation

Hope this helps!

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3 years ago

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A number plus 12 is 36. write an equation and use equation to solve

just olya [345]

Answer:

EQUATION IS GIVEN BELOW.

Step-by-step explanation:

let the number be 'x'

now,

x+12 =36

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3 years ago

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Consider a normal distribution curve where the middle 85 % of the area under the curve lies above the interval ( 8 , 14 ). Use t

NeTakaya

Answer:

$\mu = 11$

$\sigma = 2.08$

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Middle 85%.

Values of X when Z has a pvalue of 0.5 - 0.85/2 = 0.075 to 0.5 + 0.85/2 = 0.925

Above the interval (8,14)

This means that when Z has a pvalue of 0.075, X = 8. So when $Z = -1.44, X = 8$ . So