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3 years ago

Find the output, k, when the input, t, is 3. k = 13t - 2 k=

Mathematics

1 answer:

dusya [7]3 years ago

7 0

Answer:

k = 37

Step-by-step explanation:

k = 13t - 2 Since the input, t, is 3, substitute it.

k = 13(3) -2 Multiply

k = 39 - 2 Subtract

k = 37

If this answer is correct, please make me Brainliest!

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Convert the length of 7 centimeters to meters. Compare the numerical values when both numbers are written in scientific notation

Pie

I think you did correct.

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3 years ago

John took all his money from his savings account. He spent $110 on a radio and 4/11 of what was left on presents for his friend

svp [43]

Answer:

$1210

Step-by-step explanation:

Let x be total amount

First John spent $110 on a radio and 4/11 of what was left on presents for his friends so he was left with

$\frac{7}{11}(x-110)=\frac{7}{11}x-70$

Then he put 2/5 of his remaining money into a checking account

$\frac{3}{5}\left(\frac{7}{11}x-70\right)$

Rest he donated to charity

$420=\frac{3}{5}\left(\frac{7}{11}x-70\right)\\\Rightarrow \left(\frac{7}{11}x-70\right)=\frac{2100}{3}\\\Rightarrow \frac{7}{11}x-70=700\\\Rightarrow \frac{7}{11}x=770\\\Rightarrow x=1210$

Hence total amount of money John originally had was $1210

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3 years ago

Find the value of the expression 3d+5 when d=3

sergiy2304 [10]

3x3=9
9+5=14 hope this helps u

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3 years ago

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Solve:

Temka [501]

Answer:

a= -5

Step-by-step explanation

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3 years ago

Of 30 students 1/3 play sports 2/3 of them play soccer. How many play soccer

agasfer [191]

1/3 of 30 is 10 because you dividing it by 3 and you would get 10.

Now 2/3 of 10 :

10/3=3.3 (2/3 so we have to multiply by 2) 3.3•2=6.6

6.6 has to be estimated because you can't have 6.6 people.

Your answer would be 6. Before I said 7 but you said I was incorrect so the only possibility left is 6.

Hoped I helped!

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3 years ago

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