All categories

3 years ago

What is the value of x in the equation 3x-4y=65 when y =4

1 answer:

3 0

3 x - 4 y = 65

Refine :

3 x - 4 * 4 = 65

3 x - 16 = 65

Add 16 to both sides :

3 x - 16 + 16 = 65 + 16

3 x = 81

Divide both sides by 3 :

3 x / 3 = 81 / 3

x = 81 / 3

x = 27

hope this helps!

You might be interested in

Penelope goes to work after school for 4.5 hours on Mondays, Tuesdays, and Fridays. She doesn’t have classes on Wednesdays or Th

iVinArrow [24]

Answer:

Her hourly rate is $14.

Step-by-step explanation:

Given:

Penelope goes to work after school for 4.5 hours on Mondays, Tuesdays, and Fridays.

She works 8 hours each on Wednesdays or Thursdays.

Now, to find her hourly rate.

So, total hours Penelope work on Mondays, Tuesdays, and Fridays:

$4.5+4.5+4.5=13.5\ hours.$

And, total hours she work on Wednesdays and Thursdays:

$8+8=16\ hours.$

Now, the total hours each week she work:

$13.5+16=29.5\ hours.$

Total money she makes each week = $413.

Now, to get the hourly rate we divide the total hours each week she work by total money she makes each week:

$413\div 29.5$

$=\$14.$

Therefore, her hourly rate is $14.

6 0

3 years ago

What is the recursive rule for the sequence?

love history [14]

Answer : option d

4.4, 5.8, 7.2, 8.6, 10, …

First we find the common difference between two terms

5.8 - 4.4 = 1.4

7.2 - 5.8 = 1.4

8.6 - 7.2 = 1.4

10 - 8.6 = 1.4

So common difference is 1.4

To find recursive rule, we add the difference with previous term

Recursive rule is $a_n = a_{n-1} + d$

a1 is the first term so a1= 4.4

d is the difference = 1.4

So recursive rule is

$a_n = a_{n-1} + 1.4$ , where a1 = 4.4

4 0

3 years ago

Researchers wanted to estimate how many lizards were living in a nearby wildlife preserve. The researchers went to the preserve

JulijaS [17]

Answer:

rrnnrnnrnrnrehjrhhrhrhreebbh5hjhj4hjhjehjhj

Step-by-step explanation:

7 0

3 years ago

Samual has a collection of toy cars his favorites are the 27 red ones which makes up 60% of his collection how many toy cars dos

vagabundo [1.1K]

Answer:

Step-by-step explanation:

Use khan acedaemy

5 0

2 years ago

The simple interest on $400 at 5% per annum for 2 years is?

maxonik [38]

Answer:

$\frac{400 \times 5 \times 2}{100}$

Answer A is correct

Step-by-step explanation:

$p = 400 \\ r = 5\% \\ t = 2 \: \: years$

Now let's find the simple interest.

$\frac{prt}{100 } \\ = \frac{40 0 \times 5 \times 2}{100} \\ = 40$

hope this helps

brainliest appreciated

good luck! have a nice day!

4 0

3 years ago

Read 2 more answers