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Stolb23 [73]
3 years ago
10

(t+9)20=140 what is t

Mathematics
2 answers:
GarryVolchara [31]3 years ago
8 0

Answer:

t=-2

Step-by-step explanation:

(t+9)20=140

Distribute the 20

20t +180 = 140

Subtract 180 from each side

20t +180-180 = 140-180

20t = -40

Divide by 20

20t/20 = -40/20

t=-2

nataly862011 [7]3 years ago
3 0

Answer:

-2


Step-by-step explanation:

(t+9)20 = 140

Open the bracket first by multiplying everything by 20.

(20×t) + (20×9) = 140

20t + 180 = 140

20t + 180 - 180 = 140 - 180

20t = -40

20t/20 = -40/20

t = -2

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Step-by-step explanation:

We are given that  

f(x)=x^3+x+2=0

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Substitute the value n=1 then, we get  

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For n=2

f(x_2)=f(-\frac{18}{13})=(-\frac{18}{13})^3-\frac{18}{13}+2=-2.03914

f'(x_2)=f'(-\frac{18}{13})=3(-\frac{18}{13})^2+1=6.75148

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3 years ago
You are sent to the store to buy sliced meat for a party. You are told to get roast beef and turkey, and you are given $30. Roas
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Answer:

The expression related  pounds of each kind of meat you could buy at the store with $30 is 4.29x+3.99y =30.

Step-by-step explanation:

Given:

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Let Number of pounds Roast beef be x

Also Let Number of pounds Turkey be y

Hence the expression related to to the pounds of each kind of meat you could buy at the store with $30 is given by.

Total Money is equal to Cost of Roast beef per pound multiplied by Number of pounds Roast beef plus Cost of Turkey per pound multiplied by Number of pounds Turkey.

The mathematical form for above statement can be written as;

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Hence the expression related  pounds of each kind of meat you could buy at the store with $30 is 4.29x+3.99y =30.

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