All categories

3 years ago

4688-3) -30X-5 CX-5)

Mathematics

2 answers:

Morgarella [4.7K]3 years ago

8 0

Answer:

x ≈ 4.3

Step-by-step explanation:

Distribute the 4 to (8x - 3) and the 5 to (x - 5), like so:

4(8x - 3) - 30x = 5(x - 5)

32x - 12 - 30x = 5x - 25

Add like terms (32x and -30x), like so:

32x - 30x = 2x

2x - 12 = 5x - 25

Subtract 2x from both sides:

2x - 12 = 5x - 25

-2x -2x

____________

-12 = 3x - 25

Add 25 to both sides:

-12 = 3x - 25

+ 25 + 25

____________

13 = 3x

Divide both sides by 3:

4.3 ≈ x

pshichka [43]3 years ago

4 0

Answer:

x = 13/3

Step-by-step explanation:

4(8x-3) - 30x = 5(x-5)

Distribute

32x - 12 - 30x = 5x -25

Combine like terms

2x -12 = 5x-25

Subtract 2x from each side

2x-12-2x = 5x-2x -25

-12 = 3x-25

Add 25 to each side

-12+25 = 3x-25+25

13 = 3x

Divide each side by 3

13/3 = x

You might be interested in

M1Q1.) Which plot represents a stemplot of the data?

shusha [124]

Answer:

answer 1

Step-by-step explanation:

Since there's only 1 value in the 90-99 groups it is either 1 or 3.

Furthermore, there are only 2 values starting with 10.

This only fits with answer 1

6 0

3 years ago

Read 2 more answers

Find the balance in an account with $7,000 principal earning 5% interest compounded quarterly

nadya68 [22]

Answer:

The balance is $\$11,505.34$

Step-by-step explanation:

we know that

The compound interest formula is equal to

$A=P(1+\frac{r}{n})^{nt}$

where

A is the Final Investment Value

P is the Principal amount of money to be invested

r is the rate of interest in decimal

t is Number of Time Periods

n is the number of times interest is compounded per year

in this problem we have

$t=10\ years\\ P=\$7,000\\ r=0.05\\n=4$

substitute in the formula above

$A=\$7,000(1+\frac{0.05}{4})^{4*10}=\$11,505.34$

3 0

3 years ago

Last year at a certain high school, there were 60 boys on the honor roll and 112 girls on the honor roll. This year, the number

blsea [12.9K]

Answer:

21.5%

Step-by-step explanation:

60 and 112 repsectivly

60x(1.15) + 112(1.25)

69 (hehe nice) + 140

so 209 total honour roles compared to 172 last year

209/172 = 1.215116

subtract 1

.215116

multiply by 100

21.5116%

21.5%

- Gage Millar, Algebra 2 Tutor

4 0

3 years ago

Tomic and Brooke make a game of shooting free throws. Each basket is worth 212 points. Each miss is worth −34 points. Out of 30

Alex

29.5 each is worth 2.5

8 0

1 year ago

Which of the following sets of ordered pairs represents a function?

scZoUnD [109]

Answer: your answer is A) & D)

Step-by-step explanation: Hope this helps :)

6 0

2 years ago

Read 2 more answers