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12345 [234]
3 years ago
9

Use the substitution method to solve this system of equations.

Mathematics
2 answers:
KATRIN_1 [288]3 years ago
6 0

Answer:

Point Form- (5,1) Equation Form- x=5, y=1

Step-by-step explanation:

ziro4ka [17]3 years ago
3 0

Answer:

The answer is (5,1)

Step-by-step explanation:

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

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Bill worked 24 hours last week and earns $8.25 per hour. what is the total amount of money he earned
11Alexandr11 [23.1K]

Answer:

198

You times 8.25 by 34 which would come out as 198

3 0
2 years ago
$4000 into a account with 4.8 percent interest assuming no withdrawals are made how much will be n account after 9 years
tensa zangetsu [6.8K]

Answer:

$5728

Step-by-step explanation:

$4000 is deposited into an account with 4.8% interest.

We assume that there are no withdrawals from the account.

Then we are asked the determine the amount will be there in the account after 9 years.

From the formula of simple interest, the final amount in the account after 9 years will be 4000(1 + \frac{4.8 \times 9}{100}) = 5728 dollars. (Answer)

3 0
3 years ago
Please help!
quester [9]

Answer:

The third one

Step-by-step explanation:

Median - Middle number in terms of value

Mode - outcome that appears the most

Mean - average ( add the numbers together and divide that by the amount of numbers )

Data without Kevins score

13, 21, 28, 9, 31

First let's find the mean

To find the mean we simply add the numbers up and divide that by the total amount of numbers ( there are 5 numbers )

13 + 21 + 28 + 9 + 31 = 102

102/5=20.4

So the mean without Kevins score is 20.4

Next let's find the mode

The mode is the number that appears the most

Looking at the data no number appears more than once so there is no mode

Finally let's find the median.

To make it easier to find let's list the numbers in order from least to greatest

9, 13 , 21 , 28, 31

We then go to the middle number ( which would be 21 )

The mode is 21

So for data without Kevins score the mean would be 20.4, the median would be 21 and the mode would be none

Now let's add in Kevin's score and repeat this process

Data with Kevin's score

13, 21, 28, 9, 31, 9

First let's find the mean

( Note that there is 6 numbers this time )

13 + 21 + 28 + 9 + 31 + 9 = 111

111/6 = 18.5

So mean with Kevin's score = 18.5

Next let's find the mode

The number 9 appears the most so the mode is 9

Finally let's find the mean

Once again let's list the numbers from least to greatest

9, 9, 13 , 21 , 28, 31

Because there is an even amount of numbers we will take the sum of the two middle numbers and divide that by 2

The two middle numbers would be 21 and 13

21 + 13 = 34

34/2=17

So median = 17

In the end we get the following

Without Kevins score

Mean = 20.4

Median = 21

Mode = none

With Kevin's score

Mean = 18.5

Median = 17

Mode = 9

This information corresponds with the third table

5 0
3 years ago
Find two geometric means between 10 and 1250.
Roman55 [17]
Finding two geometric means between 10 and 125:
a 1 = 10,  a 4 = 1250
a 4 = a 1 * q^3
1250 = 10 * q^3
q^3 = 1250 : 10
q^3 = 125
q = 5
a 2 = 10 * 5 = 50
a 3 = 10 * 5² = 10 * 25 = 250
Answer: The two geometric means are: 50 and 250, since 10, 50, 250 , 1250 forms a geometric sequence.
 

5 0
3 years ago
Evaluate. Express your answer in scientific notation.<br> 5.09 x 104 – 4.95 x 104
zvonat [6]

Answer:

-163.64..................

5 0
3 years ago
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