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2 years ago

Solve for x.

Mathematics

1 answer:

solmaris [256]2 years ago

8 0

Answer:

$x =-\frac{4}{5}$

Step-by-step explanation:

$x-\frac{1}{12} =-\frac{7}{20} \\\\ +\frac{1}{12} +\frac{1}{12} \\\\x =-\frac{4}{5}$

Hope this helps!

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My name is Ann [436]

25-9=16 so 16 is the answer

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3 years ago

i bought 3 small tapas dishes and 2 large ones on a visit to café ba-ba-reeba and. spent $14. I went back another day and got 4

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The small dish costs $2 each and the large dish costs $4 each,

2(3)+4(2)=6+8=14

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3 years ago

The meat department of a local supermarket packages ground beef using meat trays of two sizes: 1 designed to hold 1 lb of meet a

r-ruslan [8.4K]

Answer:

c) 0.932

99% confidence interval for average weights of all packages sold in small meat trays.

(0.932 ,1.071)

Step-by-step explanation:

Explanation:-

Given random sample of 35 packages in small meat trays produced weight with an average of 1.01 lbs. and standard deviation of 0.18 lbs.

size of the sample 'n' = 35

mean of the sample x⁻= 1.01lbs

standard deviation of the sample 'S' = 0.18lbs

The 99% confidence intervals are given by

$(x^{-} - t_{\alpha } \frac{S}{\sqrt{n} } , x^{-} +t_{\alpha } \frac{S}{\sqrt{n} } )$

The degrees of freedom γ=n-1 =35-1=34

tₐ = 2.0322

99% confidence interval for average weights of all packages sold in small meat trays

$(1.01 - 2.0322 \frac{0.18}{\sqrt{35} } , 1.01+2.0322 \frac{0.18}{\sqrt{35} } )$

( 1.01 - 0.06183 , 1.01+0.06183)

(0.932 ,1.071)

Final answer:-

99% confidence interval for average weights of all packages sold in small meat trays.

(0.932 ,1.071)

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3 years ago

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4x=-3y+17 becomes 4x+3y=17

4x+3y=17
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alrighty

elimination

muliply first equation by 4 and 2nd by 3 and add them
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25x=50
idivide both sides by 25
x=2

sub back

3x-4y=-6
3(2)-4y=-6
6-4y=-6
-4y=-12
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(x,y)
(2,3)

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3 years ago

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