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3 years ago

If 3s = t + 5 and se = 4, then t =

Mathematics

1 answer:

grigory [225]3 years ago

5 0

Answer:

t must be 7

Step-by-step explanation:

Replace s with 4 and solve for t in the original equation:

3 s = t + 5

3 (4) = t + 5

12 = t + 5

12 - 5 = t

7 = t

So t must be 7

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I think it’s b but I’m not sure

laila [671]

No, its D

Just look at the rounds mentioned and subtract the scores from higher round with lower round.

Look at A: round 2 score - round 1 score = -2?
-3 -1 = -4 change, not -2 change so it is wrong

Look at B: round 3 score - round 1 score =-1?
-2-1 =-3 change, not -1 change so it is wrong

Look at C: round 3 score - round 2 score =-1?
-2 -(-3) = 1 change, not -1 change so it is wrong

Look at D: round 3 score - round 1 score =-3?
-2-1 = -3 change, matches with -3 so it is correct.

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2 years ago

The cost of a cd is $18.95 makeup is 70%

kykrilka [37]

$5.69 Discount $13.27

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3 years ago

The data set shows the number of practice free throws players in a basketball competition made and the number of free throws the

Mila [183]

Answer-

The exponential model best fits the data set.

Solution-

x = input variable = number of practice throws

y = output variable = number of free throws

Using Excel, Linear, Quadratic and Exponential regression model were generated.

The best fit equation and co-efficient of determination R² are as follows,

Linear Regression

Quadratic Regression

Exponential Regression

The value of co-efficient of determination R² ranges from 0 to 1, the more closer its value to 1 the better the regression model is.

Now,

Therefore, the Exponential Regression model must be followed.

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3 years ago

Shelly spent 10 mintues jogging and 20 mintues cycling and burned 300 calories. The next day, shelly swapped times and did 20 mi

ratelena [41]

She burned 30 calories for each minute of jogging and 15 calories for each minute of cycling because 300 divided by 10 is 30 and 300 divided by 20 is 15

6 0

2 years ago

Michael pays $30 to enter a state fair, plus $4 for each ride. Which of the following

lawyer [7]

Answer:

The required equation is:

$y=4x+30$

So, Option C is correct option.

Step-by-step explanation:

Entry fee for fair = $30

Cost of one ride = $4

Cost of x rides = $4x

If y represents the total cost the equation will be sum, of entree fee and cost of x rides i.e

$y=4x+30$

The required equation is:

$y=4x+30$

So, Option C is correct option.

3 0

2 years ago