I WILL GIVE BRAINLIST IF YOU ANSWER ALL THREE OF THESE QUESTIONS !! MUST BE IN ORDER
example : number 1 is ___ number 2 is ____ number 3 is___

1.) solve the system of equations

x+ 3y =5
-x +6y= 4

A) x=1, y=2
B) x= 2 y=1
C) x= 1 y=1
D) x= 0 y=2

2.) solve the system of equations

2x-2y=6
3x+2y=9

A) x=0 ,y=3
B) x=3, y=0
C) x=1, y=-2
D) x=-2, y=1

3.) solve the system of equations

5x-2y=3
-5x+4y=9

A) x=6,y=3
B) x=6, y= 13 1/2
C= x=3, y=6
D) x=1, y=0

Answer:

C

Step-by-step explanation:

Cece spent 2 2/5 hours doing his math modules 1 1/5 hours doing his science. how munch more time did cece spend on doing his math module than on his science module? After analyzing, the answer is C.

Answer:

A  1 1/5

Step-by-step explanation:

For math 2  2 / 5 hours = (10 + 2 ) / 5 = 12/5

for science 1  1 / 5 hours =  (5 + 1) / 5 = 6 / 5

so, math - science time is

= 12 / 5 -  6 / 5

= 6 / 5

= 1  1 / 5

Answer:

Step-by-step explanation:

If 96 pencils are in 1 box, and the principal ordered 3 boxes, you have 288 pencils.

288/4 = 72, so they each get 72 pencils.

Answer:

Sierra would have 16 points

Step-by-step explanation:

5×4=20

8×[tex]\frac{1}{2}[/tex]=4

20-4=16

Answer:

34.69 years for the first part.

Step-by-step explanation:

I got it right

Answer:

a, x < y or z < y

b, y > z or y > x

c, x = z

Step-by-step explanation:

l   l (forget the name but you get it) was absolute positive at all time. Just thinking all the negative number in the box was positive.

Answer:

=======================================================

Work Shown:

(39 mm)/(6 m) = (x mm)/(4 m)

39/6 = x/4

39*4 = 6*x

156 = 6x

6x = 156

x = 156/6

x = 26

The actual length of 4 meters corresponds to 26 mm on the blueprint.

Side note: I used the cross multiplication rule on the third line.

Answer:

Step-by-step explanation:

4^3 x 4^6

Laws of indices: a^b x a^c = a ^ (b+c)

= 4 ^ (3+6)

= 4^9

Answer:

300 calories a day

Step-by-step explanation:

27÷9=3

3×100= 300

Answer:

40

Step-by-step explanation:

8 x 5 - 40

4 x 10 - 40

Answer:

I don't know the question you have, can you state it please so I can help you?

Step-by-step explanation:

look to the picture of my answer.

Answer:

multiply by 4

Step-by-step explanation:

6 times 4 is 24 and 24 times 4 is 96 and 96 times 4 is 384 therefore its a multiply by 4 sequence

Graph the line using the slope and y-intercept, or two points.

Slope= -5

y- intercept= (0,2)

The answer has two points (0,2) and (1,-3) place them and then make a line going left through them.

Step-by-step explanation:

x - 2y = 4 (1)

3x + 2y = 12 (2)

Answer:

240cm

Step-by-step explanation:

50% of 160 is 80.

80cm+160cm= 240cm

Answer: I think these are the answers

Jake-Texas, Student Council (Jake does not live in california,

Anna-California, Math club (neighboor of Ling since Jake is not from California )

Ling-New Jersey, Swim meet (sits next to anna on bus, never been to texas and goes to anna for help on math)

Step-by-step explanation:

Answer:

Step-by-step explanation:

It is often convenient to use a chart to record the logic of the problem. The attached shows a typical arrangement for logic problems of this kind. It lets each category relate to every other category.

We use an X to identify a combination that is ruled out by something in the problem statement. The numbers are used here to identify the statement that gives rise to the chart fill-in. (Note that statement 6 is redundant and is not necessary to solve the problem.)

A Dark green background color is used to identify a primary conclusion. (The first ones are that Ling is from NJ, and Anna is from CA, hence in the math club.) The faded green identifies a secondary conclusion that results after the primary conclusions are reached. (The green square with 5 is faded only to enhance its contrast. It is a primary conclusion based on statement 5.)

Once 2 of 3 squares are filled on a line or column of a 3×3 space, the remaining conclusion is obvious.

2.38/12 which would equal around 19 cents per egg

Answer:

Rob is 31 and Corey is 15

Step-by-step explanation:

x + x + 16 = 46

2x + 16 = 46

2x = 30

x = 15

46-15=31

Answer:

342

Step-by-step explanation:

fvsvgdbhfnjmk,hlhgfdsdssddsdssd

Answer:

=

Step-by-step explanation:

0.5 is half and 9/18 is half

Answer:

(y^2+1)(x^2+1)=k

Step-by-step explanation:

It looks like it is possibly separatable.

Let's try.

Factor the x out on first term and factor the y out on second term:

x(y^2+1)dx+y(x^2+1)dy=0

Subtracting y(x^2+1)dy on both sides:

x(y^2+1)dx=-y(x^2+1)dy

Divide both sides by (y^2+1)(x^2+1):

x/(x^+2+1)dx=-y/(y^2+1)dy

Integrate both sides..

Use substitution u=x^2+1 and v=y^2+1...so du= 2x dx and dv=2y dy.

.5du/u=-.5dv/v

.5ln|u|=-.5ln|v|+c

Multiply both sides by 2:

ln|u|=-ln|v|+c

Plug in our substitutions :

ln|x^2+1|=-ln|y^2+1|+c

Absolute values unnecessary since insides are positive always.... also -ln(y^2+1)=ln(1/(y^2+1))

e^ on both sides:

x^2+1=k(1/y^2+1)

(y^2+1)(x^2+1)=k

Answer:

520

Step-by-step explanation:

Let the Ratio a:b:c be 7x:13x:20x Respectively.

So, Sum of Ratios is 520...

A+B+C = 520

7x+13x+20x=520

40x=520

x= 520/40

x= 13

Now, Put the value of x

A= 7x= 7×13= 91

B= 13x = 13×13= 169

C= 20x = 20×13= 260

Now Add the numbers if we get 520 it means all the three numbers are correct....

91+169+260= 520

Answer:

b

Step-by-step explanation:

Answer:

One solution

Step-by-step explanation:

(2.5,0)

Answer:

e

Step-by-step explanation:

Answer:

4x-y=9

Step-by-step explanation:

Answer:

A. 4 cups pineapple juice+8 cups orange juice+12 cups seltzer=24 cups total

108/24=4.5, so you need 4.5*(recipe)=

18 cups pineapple juice, 36 cups orange juice, and 54 cups seltzer

B. each recipe makes 18 servings, so 4.5*(recipe) =4.5*18= 81 servings

C. 8 cups orange juice/12 cups seltzer=2 cups orange juice/3 cups seltzer=2/3 cups orange juice/1 cup seltzer

Step-by-step explanation:

please mark brainliest if someone else answers :)

If Jess wants to make 128 cups of punch then 32 cups of Citrus soda used.

The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units.

For example, Let's say Ram spends 36 Rs. for a dozen (12) bananas.

12 bananas will set you back 36 Rs. 1 banana costs 36 x 12 = 3 Rupees.

As a result, one banana costs three rupees. Let's say we need to calculate the price of 15 bananas.

This may be done as follows: 15 bananas cost 3 rupees each; 15 units cost 45 rupees.

We have,

For 1 cup punch

0.4 cups of orange juice,

0.35 cups of pineapple juice, and

0.25 cups of citrus soda.

So, to make 128 cups the amount of each ingredient used

Orange juice: 128 x 0.4= 51.2

Pineapple juice: 128 x 0.35 = 44.8

Citrus soda: 128 x 0.25 = 32

Learn more about Unitary Method here:

https://brainly.com/question/22056199

#SPJ3

12,362.7

所有冰雹约翰西娜和中共。冰心寒。