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AleksAgata [21]
3 years ago
10

Show the steps you used to solve 4x + 2y = 8 5x - 3y = 4

Mathematics
1 answer:
Mekhanik [1.2K]3 years ago
6 0

Answer:

-0.2

Step-by-step explanation:

Simplifying

5x = 3y + -4

Reorder the terms:

5x = -4 + 3y

Solving

5x = -4 + 3y

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Divide each side by '5'.

x = -0.8 + 0.6y

Simplifying

x = -0.8 + 0.6y

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Sum of 2 and 5 is divided by the difference of 9 and 4 in expression form ​
Goshia [24]

Answer:

(2 + 5) / (9 - 4)

Step-by-step explanation:

"sum of 2 and 5" = (2 + 5)

"difference of 9 and 4" = (9 - 4)

"sum of 2 and 5 is divided by the difference of 9 and 4"

= (2 + 5) / (9 - 4)

5 0
3 years ago
1. Sarah's current account balance is $2,600. She made a single lump sum amount of
ziro4ka [17]

Answer:

The simple interest that said investment yielded was 3.75% per year.

Step-by-step explanation:

Given that Sarah's current account balance is $ 2,600, and she made a single lump sum amount of $ 2,000 eight years ago into the account, to calculate the equivalent simple interest rate (quoted annually) that she earned the following calculation must be performed:

(2,600 - 2,000) / 8 = X

600/8 = X

75 = X

2,000 = 100

75 = X

75 x 100 / 2,000 = X

7,500 / 2,000 = X

3.75 = X

Thus, the simple interest that said investment yielded was 3.75% per year.

7 0
3 years ago
The table shows the predicted growth of particular bacterium after various numbers of hours. Write an explicit formula for the s
Oksana_A [137]

Answer:

D

-29

Step-by-step explanation:

Problem 1

In the first hour, the number of bacteria is 22

In the second hour,the number of bacteria is 44

It looks like the formula is some multiple of 22

That means you should pick D

Problem 2

n = 12

a = 15

d = - 4

an= 15 + (n - 1)*d

a12 = 15 + 11*(-4)

a12 = 15 - 44

a12 = - 29

6 0
3 years ago
What is 3/4 of 100kg
hichkok12 [17]
75kg should be the answer
4 0
3 years ago
What is the mean, median, and mode of 6,2,3,4,4,2,8,5,2​
bearhunter [10]

Answer:

Mode=2

Median=4

Step-by-step explanation:

Mode you add all the numbers and divide by the actual number of the numbers given.

Median you cancel the numbers from first to last until you reach the one in the middle that's going to be the median.

5 0
3 years ago
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