All categories

2 years ago

What is the value of y in the equation 6.4x + 2.8y = 44.4, when x = 3

Mathematics

2 answers:

Georgia [21]2 years ago

7 0

Answer:

Step-by-step explanation:

6.4(x)+2.8y=44.4

6.4(3)+2.8y=44.4

19.2+2.8y=44.4

2.8y=25.2

y=9

lara31 [8.8K]2 years ago

3 0

Answer:

y=9

Step-by-step explanation:

plus in the 3 into x and move the constant to the right. go ahead and calculate then divide by both sides. you should end up with y=9

You might be interested in

Enter the equation of the circle described below. Center (-1,4), radius = sqrt3

slava [35]

The equation of a circle always follows this:

(x - x1) + (y - y1) = r^2

x1 and y1 represent the coordinates as POSITIVE numbers and the r represent the radius

Your answer is (x + 1) + (y - 4) = 3

8 0

3 years ago

Read 2 more answers

Please helppp!!! Latrece sells bracelets for a fixed price at the craft show for every bracelet she sells she gives her business

anyanavicka [17]

Answer:

Step-by-step explanation:

Answer:

$7.50

Step-by-step explanation:

$207 / 18 = $11.50

Each bracelet costs $11.50.

$11.50 - $4 = $7.50

She receives $7.50 for every bracelet she sells.

8 0

3 years ago

Pls can anyone give me tips for studying when I'm high-school

dimulka [17.4K]

Answer:

take a break from social media , find a peaceful spot to study ,be engaged , take notes and listen during discussion make use of ur extra time wisely

hope it's helpful 

5 0

3 years ago

Two ropes are attached to a large ballon in a parade. The people holding the ropes are 40 feet apart,and the angle between the t

qaws [65]

Ropes are 9.63 meters ans 8.178 meters.

Step-by-step explanation:

Step 1 :

List all the given things

Distance between people holding ropes = 40 =(40*0.3048) meters = 12.192 meters

Angle between two ropes = 86 degrees

Angle of elevation of one rope = 42 degrees

Step 2 :

Two angles of triangle are already given so third angle can be calculated as -

Third angle = 180 - ( 86 + 42 ) = 52 degrees

Step 3 :

As we know all three angles we will apply sine rule now, which is

$\frac{a}{sine A} = \frac{b}{sine B} = \frac{c}{sine C}$

Step 4 :

By putting values, we have

$\frac{a}{sine 52} = \frac{b}{sine 42} = \frac{12.192}{sine 86}$

Step 5 : Calculating a and b

$a = 12.192 * \frac{sine 52}{sine 86}$ , $b = 12.192 * \frac{sine 42}{sine 86}$

Step 6 :

By putting values of all sine and calculating we get,

a = 9.63 meters and b = 8.178 meters

4 0

3 years ago

Estimate then record the product, 181×2

Sauron [17]

I estimated it is around or near 360

8 0

3 years ago