Thuy wrote the system of equations. 24 x + 36 y = 72. Negative 16 x + 8 y = 80. If the second equation is multiplied by 3, what should the first equation be multiplied by to eliminate the x variable by addition?

Answer:

Step-by-step explanation:

Use Desmos. Y-intercept is 4 so start from there (place a point on (0,4)). From the y-intercept use the slope. -3 technically means three down and one to the right.

y-intercept form --> y= -3x + 4

Answer: 6 : 24 is for black haired and 18 : 24 is for blond

Step-by-step explanation:

18 : 24

24 - 18 = # of black haired dolls

6 = # of black haired dolls

Ratio

6 : 24

Answer:

$22.40

Step-by-step explanation:

32 - 25.60 = 6.40

6.40/32 = 0.2

0.2 X 100 = 20%

100 - 20 = 80

28/100 X 80 = 22.40

Answer:

Step-by-step explanation:

The graph has negative leading coefficient as

It is of the odd degree, and the degree is most probably 5

Answer:

37 degrees

Step-by-step explanation:

First, solve for the angle beside 152 degrees. Subtract 180 to 152 and you get 28 degrees. Next, we add 28 degrees to 115 degrees, which is 143 degrees. After, we subtract 143 from 180 (since the total angle of a triangle is 180) and we arrive at 37 degrees.

4,20

i think that the answer

Answer:

*answers*

Step-by-step explanation:

u just answer it

Answer:

1

Step-by-step explanation:

Answer:

It would be the second one, angle A would equal angle F

Step-by-step explanation:

They are both in the same position. A is the first one in the sequence ABC and F is the first one in the sequence FED

Step-by-step explanation:

(4z +9) + ( 9y - 2) =180

4z + 9y = 173 ....... Equation 1

The angles of triangle = 180

We miss one angle and in opposite of that angle is 135 so

( 5y +5 +4z +9)+135 = 180

5y + 4z + 149 = 180

5y + 4z = 31 ....... Equation 2

Subtract between two equations 1 & 2

4y = 142

y = 142/4

y = 35.5

Answer:

x=0.15197212 +2 pie n, 9.27280583 + 2 pie n for any integer n.

Answer:

8<8 and 2>8 are both false

Answer:

B

Step-by-step explanation:

Answer:

$40

Step-by-step explanation:

200 - 20% = 160

200 - 160 = 40

Answer:

40 dollas!!!! if your on k12 anything its 40

Step-by-step explanation:

Answer:

1.44

Step-by-step explanation:

All you have to do is divide 13 by 9 and get 1.44, that is how much snow fell in 1 hour

pls mark brainliest

Answer:  $50

Step-by-step explanation:  Draw a line through the apparent center of the scattered dots. See where that line intersects 9 in the time scale (x-axis numbers) and the dollars earned scale (y-axis numbers)

It could be 50 or 55, but since there are a few more dots below the apparent midline, it may be best to use the lower estimate.

Answer:

10,441

Step-by-step explanation:

1576/8=197

197x8=10,441

Answer:

(a) 5/14

(b) 54 beads

(c) 6 green beads

Step-by-step explanation:

(a) Find the total number of units for red and green beads.

5 + 9 = 14

Since red beads is 5, it is 5/14.

(b) Find the units for red and green beads altogether.

5 + 9 = 14

14 units = 84 beads

Find one unit.

1 unit = 84 ÷ 14 = 6 beads

Since green beads have 9 units, find how many beads there are in 9 units.

9 units = 6 x 9 = 54 beads

(c) As there are 54 green beads and Susie wants to have twice as much green beads as red beads, she have to find how many red beads there are first.

Since red beads have 5 units, find how many beads there are in 5 units.

5 units = 6 x 5 = 30 beads

After that, since she wants twice, she have to find x2 of 30 beads which are red.

30 x 2 = 60

After that, find the remaining amount of green beads needing to make x2 of 30.

60 - 54 = 6 beads (green)

Part(a),

5/14 of the beads are red.

Part(b),

There are 54 green beads in the bag.

Part(c),

Add 18 red beads and 36 green beads to the bag to get the desired ratio.

(a) There are five times as many red beads as green beads, or a 5:9 ratio. Therefore, there are 9 green beads in the bag for every 5 red beads. Therefore, the fraction of the beads that are red can be expressed as:

5/(5+9) = 5/14

So, 5/14 of the beads are red.

(b) The bag contains 84 beads, and the proportion of red to green beads is 5:9. Let G equal the number of green beads and R equals the number of red beads. Next, we have:

R/G = 5/9

And we also know that:

R + G = 84

We can use the first equation to express R in terms of G:

R = (5/9)G

This results from substituting this into the second equation:

(5/9)G + G = 84

Simplifying:

(14/9)G = 84

G = (9/14) * 84 = 54

So there are 54 green beads in the bag.

(c) Let's assume that the bag currently contains G-green beads and R red beads. So that there are twice as many green beads as red beads, we wish to add a few more beads.

G = 2R

We also know that the total number of beads in the bag should be:

R + G + X = 84

Where X is the required number of beads. G = 2R is substituted into this equation to produce:

R + 2R + X = 84

3R + X = 84

Finding R and X numbers that meet both this equation and the prerequisite that G = 2R is necessary. One potential answer is:

R = 18, X = 30

This gives:

G = 2R = 36

And:

R + G + X = 18 + 36 + 30 = 84

Hence, to get the correct ratio, we can add 18 red beads and 36 green beads to the bag. There might be other workable alternatives as well, though.

To know more about an expression follow

https://brainly.com/question/13590692

#SPJ2

Answer:

72 feet

Step-by-step explanation:

multiply 34 by 2 (because there is 2 sides), and multiply 2 by 2 (because there is 2 sides), and you'll get 68 and 4. add them together, and you'll get 72.

Answer:

ANSWER IS CAUSE ONES A NEG AND ONES A POSITIVE HAPPY TO HELP

Step-by-step explanation:

Answer:

the answer is C (4)

Answer:

a= 6 7/8

Step-by-step explanation:

Answer:

11%

Step-by-step explanation:

0.11*100=11%

necause 1%=1/100

explanation ;)

MEAN - add all the numbers = 4+6+2+6+9+3+5 =42

then you count have many numbers you got 7

after that you divided 7/42 = 6 that the mean or something call average:)

MEDIA - to find out was the meaning is you first make in order like youngest to oldest 2, 3, 4, 5, 6, 6, 9 and circle what numbers is on the middle that is 5.

listen if there even amounts of numbers you just circle the two numbers in the middle then add does two numbers and divide dy 2 ONLY IF IS EVEN

MODE- look for the two numbers they are the same 6

and that's the mode

6,5,6

Answer:

3 6/7.

Step-by-step explanation:

Answer:

-3  6/7

Step-by-step explanation:

rewrite with 'like' terms next to each other:

-8/3x + 1/3x + (-3) + (-1) = 5

-7/3x + (-4) = 5

-7/3x = 9

multiply each side by -3/7

x = -27 /7 or -3  6/7

Answer:

D

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = 4 and c = 3, then

y = 4x + 3 → D

Answer:

b

Step-by-step explanation:

Answer:

C=8

Step-by-step explanation:

Answer:

-15(7/20) = -307/20 = -15.35, which is less than -15.

Step-by-step explanation:

Aight

Answer:

>

Step-by-step explanation:

-15(7/20) = -307/20 = -15.35, which is less than -15.

Answer:

yes!

Step-by-step explanation:

one side is longer than the other then the 10 inch line is used to connect them!

(hope this helps)