The solution to which system of equations has an x-value of 3?
(A) x + 2y =-1; y=3x + 3
(B) 3x – Y= 2; x + 2y=-1
(C) y= 3x + 3; 230 + 3y=0
(D) 2x + 3y=0; x + 2y=-1

Answers

Answer 1

Answer:

D)

Step-by-step explanation:


Related Questions

Pls help me i rlly need help im bad at math

Answers

Answer:

115

Step-by-step explanation:

So you've already driven 124, so you would just subtract taht from 239

115 Miles Left !

Explanation:

You have to subtract. 239 - 124 = 115 miles are left.

change 21 out of 71 to a percentage. Give your answer to 1 decimal place

Change 46 out of 254 to a percentage, give your answer to 1 decimal place


Change 12 out of 43 to a percentage, give tour answer to 1 decimal place

Change 43 out of 57 to a percentage, give tour answer to 1 decimal place ​

Answers

1. 29.6%
2. 18.1%
3. 27.9%
4. 75.4%

Answer:

ans 1. 29.5

ans 2. 18.1

ans 3. 27.9

ans 4. 75.4

I hope it helps....

Whats 13 1/4 + 16 1/2

Answers

13 1/4 + 16 1/2=29.75

Answer:

29 3/4

OR

29.75

Step-by-step explanation:

1/2 is equal to 2/4 so we can convert it like this-

13 1/4+16 2/4

(13+16=29)

(1/4+2/4=3/4)

29 3/4

OR

29.75

in a bowl there are 20 Hershey bars and 50 bags of skittles. what is the ratio of skittles to hershey bars in the bowl

Answers

Answer:

5:2 or in other words 5 to 2

Step-by-step explanation:

The original ratio would be 50:20, but we can divide both sides by 10 to simplify our answer to 5:2.

Answer:

5:2 Or 50:20 (5:2 is the simplified version)

50 bags of skittles to 20 Hershey bars    (what it looks like with words)

Step-by-step explanation:

2. Simplify the expression below.
6 X 4 = 2

Answers

Answer:

24=2

Step-by-step explanation:

6 ⋅ 4= 2

24 = 2

Use the properties of quadrilaterals to complete the statements. A has exactly one pair of parallel sides. A must have two pairs of adjacent sides congruent. A must have all congruent sides.

Answers

Answer:

1. Trapezoid

2. Kite

3. Square, Rhombus

Step-by-step explanation:

Given - Use the properties of quadrilaterals to complete the statements.

To find - A ..... has exactly one pair of parallel sides.

             A ....... must have two pairs of adjacent sides congruent.

             A ........ must have all congruent sides.

Proof -

A Trapezoid has exactly one pair of parallel sides.

A Kite must have two pairs of adjacent sides congruent.

A Square, Rhombus must have all congruent sides.

Reason -

A trapezoid is a quadrilateral with exactly one pair of parallel sides. A kite is a quadrilateral with exactly two pairs of adjacent congruent sides.A rhombus is a parallelogram with four congruent sides.A square can be defined as a rhombus which is also a rectangle . In other words, a square is a parallelogram with four congruent sides and four right angles.

There are 25 balls in a bag, made up of two different colours,
There are 12 black balls
You remove 1 ball from the bag
What is the probablility of taking a blue ball? Give you answer as a fraction in simplest
form

Answers

Answer: The answer would be 13/25

Since there are 25 balls and 12 black balls, you want to subtract 12 from 25 to get the number of blue balls. There are 25 balls in total, so the probability of getting a blue ball is 13/25

A. Two times the slope of f(x)
B. Three less than the slope of f(x)
C. One half the slope of f(x)
D. Three more than the slope of f(x)
Plsssss help I need it

Answers

answer:c is the answer i’m pretty sure sorry if i’m wrong

Write an equation to describe the relationship in each table

Answers

Answer:

1:[tex]y=x+6[/tex]

2[tex]y=\frac{1}{2}x[/tex]

Step-by-step explanation:

If I helped, a brainliest answer would be greatly appreciated!

What additional piece of information would you need to use the Side-Angle-Side Triangle Congruence Postulate to prove that △RQP ≅ △SQP?

Answers

Answer:

[tex]RQ = SQ[/tex]

Step-by-step explanation:

Given

△RQP ≅ △SQP

See attachment

Required

Additional information that shows that △RQP ≅ △SQP

△RQP and △SQP share a common side QP:

This implies that:

[tex]QP = QP[/tex] ---- Side (S)

△RQP ≅ △SQP implies that:

[tex]\angle RQP = \angle SQP[/tex] ---- Angle (A)

Lastly, we already established that △RQP and △SQP share a common side QP

Then remove point P, we have: RQ and SQ

This implies that:

[tex]RQ = SQ[/tex] --- Side (S)

Hence, the additional piece of information needed is: [tex]RQ = SQ[/tex]

21÷6216 I really need the answer

Answers

Answer:

1/296 I think good luck tho

The graphs of the equations Ax + By =15 and Ax - By =9 intersect at (2, 1). Find A and B. Show or explain your reasoning

Answers

Hi here’s the answers hope this helps

The value of A and B will be 6 and 3 respectively

What is Linear equation with two variables?If an equation is stated in the form ax + by + c=0, it is said to be a linear equation in two variables, where a, b, and c are real numbers and the coefficients of x and y, i.e. a and b, are real values.Linear equations in two variables are the algebraic equations which are of the form y = mx + b, where m is the slope and b is the y-intercept

How to solve this problem?

The steps are as follow:

Given equations

Ax +By = 15

Ax - By = 9

Given that both lines intersect at point (2,1), so both above equation can be written as:

2A + B = 15

2A - B = 9

Solving the above equation by adding both of them we get:

4A = 24

A = 6

Putting value of A in one of equation we will get:

2A + B = 15

2(6) + B = 15

B = 3

So the value of A and B will be 6 and 3 respectively

Learn more about Linear equation with two variables here:

https://brainly.com/question/1060504

#SPJ2

Paul Colin and Brian are waiters. One night the restaurant earns tips totalling £77.40. They share the tips in the ratio 2:3:4. How much more does Brian get over Paul?

Answers

Given:

Total tip = £77.40

Paul, Colin and Brian share the tips in the ratio 2:3:4.

To find:

How much more does Brian get over Paul?

Solution:

Let the shares of Paul, Colin and Brian are 2x, 3x and 4x respectively.

[tex]2x+3x+4x=77.40[/tex]

[tex]9x=77.40[/tex]

[tex]x=\dfrac{77.40}{9}[/tex]

[tex]x=8.6[/tex]

Now, the different between Brian and Paul share is

[tex]Difference=4x-2x[/tex]

[tex]Difference=2x[/tex]

[tex]Difference=2(8.6)[/tex]

[tex]Difference=17.2[/tex]

Therefore, Brain get £17.2 much more over Paul.

55% of 6th grade students voted in the student election. 440 sixth grade students voted in the student election. How many total 6th graders are in the school

Answers

Answer:

800. Here's why:

Step-by-step explanation:

This indicats that 440 students make up 55% of the 6th grade population. We can write this as

55/440.

We also know that 'x' total students make up 100% of the 6th-grade population, so we can write this as

100/x.

55/440 must be equal to 100/x. When cross multiplied, it becomes 50x=44000. If we divided each side by 50, we'll find that x=880. Therefore, there are 800 6th graders

Answer:495

Step-by-step explanation:

440 rounds up to 450,450+450=900-the 10 we rounded so 890-440 is 450 which is half so we need to add 440 to 550 to get 990 and we half 990 to get  495 and that is your answer i think im very sorry if this is wrong btw a sixth grader did this please find out a way to reply to my comment or something like that to tell me if i am right.

Revani has 120 coins. Of the coins, 2/6 are nickels, 2/6 dimes, and the rest are
quarters. What is the ratio of Revani’s nickels to dimes to quarters?

Answers

Answer:

2:2:2

1:1:1

2 to 2 to 2

1 to 1 to 1

Step-by-step explanation:

For what value of x is the figure a rectangle?

Answers

: 9x+31 hope it helps

Help with this question

Answers

first option is the correct answer

The following are the ages (years) of 5 people in a room:
14, 14, 18, 18, 22
A person enters the room.
The mean age of the 6 people is now 16.
What is the age of the person who entered the room​

Answers

Answer:

10

Step-by-step explanation:

14+14+18+18+22=86

6*16=96

96-86=10

Step-by-step explanation:

✧ [tex] \underline{ \underline{ \large{ \tt{S \: O \: L \: U \: T \: I \: O \: N}}} }: [/tex]

Let the age of a person who entered the room be ' x '.

✧ [tex] \underline{ \underline{ \large{ \tt{G \: I \: V \: E \: N \: \: D \: A\: T \: A } }}} : [/tex]

14 , 14 , 18 , 18 , 22 , x

n ( number of observation ) = 6

[tex] \sum[/tex] x = 14 + 14 + 18 + 18 + 22 + x = 86 + x

Mean = 16

☯ [tex] \boxed{ \large \tt{Mean \: = \frac{ \sum \: x}{n} }}[/tex]

~Plug the values :

⇢ [tex] \large{ \tt{16 = \frac{86 + x}{6}}} [/tex]

~Apply cross product property :

⇢ [tex] \large{ \tt{86 + x = 16 \times 6}}[/tex]

⇢ [tex] \large{ \tt{86 + x = 96}}[/tex]

Move 86 to right hand side and change it's sign

⇢ [tex] \large{ \tt{x = 96 - 86}}[/tex]

⇢ [tex] \boxed{ \large{ \tt{x = 10}}}[/tex]

[tex] \large{ \boxed{ \boxed{ \underline{ \large{ \tt{Our \: Final \: Answer : \underline{10}}}}}}}[/tex]

Hope I helped ! ツ

Have a wonderful day / night ! ♪

⋆ Let me know if you have any questions regarding my answer ⋆

[tex] \underline{ \underline{ \mathfrak{Carry \: On \: Learning}}}[/tex] !! ✎

▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁

Please give me the right answer. :)

Answers

Answer:

174mm hope this helps Happy Saint Patrick's day

Answer:

11,340 mm

Step-by-step explanation:

I am really really sorry if im wrong

Use the graph to find the factorization of x2 - 7x+ 12.
y= x2 - 7x + 12
+
-5
5
O A. (x - 3)(x-4)
O B. (x+6)(X + 8)
O C. (x-6)(x-8)
O D. (x+3)(x + 4)

Answers

It’s choice A.........

help asap please , don’t know how to do this lol

Answers

Answer:

no

Step-by-step explanation:

i need help pls!
A diameter is also a ____

Answers

Answer:

Chord.

Step-by-step explanation:

A chord us any line segment that joins two points on the circumference of a circle.

A diameter obeys that definition.

It's a special chord because it passes through the center of the circle.

Answer: circle

explanation: a diameter of a circle is any straight line segment that passes through the centre of the circle and whose endpoints lie on the circle

show that
sinx/1+cosx=tanx/2​

Answers

Answer:

See proof below

Step-by-step explanation:

show that

sinx/1+cosx=tanx/2​

From LHS

sinx/1+cosx

According to half angle

sinx = 2sinx/2 cosx/2

cosx = cos²x/2 - sin²x/2

cosx = cos²x/2 - (1- cos²x/2)

cosx = 2cos²x/2 - 1

cos x + 1 = 2cos²x/2

Substitute into the expression;

sinx/1+cosx

= (2sinx/2 cosx/2)/2cos²x/2

= sinx.2/cos x/2

Since tan x = sinx/cosx

Hence sinx/2/cos x/2 = tan x/2 (RHS)

This shows that sinx/1+cosx=tanx/2​

The CN tower in Toronto is once the worlds tallest freestanding structure from a certain point the angle of elevation of the top of the tower at 65° from a .50 6.6 m closer to the angle of elevation of the top of the tower is 70° calculate the height of the CN Tower

Answers

Answer:

h o e

Step-by-step explanation:

A series of quarterly payments of P1,300 each at the first payment is due at 4 years, and the last payment at the end of 12 years. If money is worth 5 ½ % compounded quarterly:

Answers

Answer:

The Value of Payments is  P18,557.15

Step-by-step explanation:

The quarterly payment is an annuity payment.

Use the following formula to calculate the present value of the payments.

PV of Annuity = Annuity Payment x ( 1 - ( 1 + interest rate )^-Numbers of periods ) / Interest rates

Where

Annuity Payment = Quarterly payment = P1,300

Interest rate = 5.12% x 3/12 = 1.375%

Numbers of periods = 4 years x 12/3 = 16 quarters

PV of Annuity = Value of Payments  = ?

Placing values in the formula

Value of Payments = P1,300 x ( 1 - ( 1 + 1.375% )^-16 ) / 1.375%

Value of Payments =  P18,557.15

Keegan had 3.25 pounds of flour. After making bread, he had 1.75 pounds of flour left over. i know its 1.5 but whats the Equation?

Answers

Answer:

Step-by-step explanation:

loaves per week) 1.0 = 51 pounds of flour 1.5 = 76 pounds of flour 2.0 = 101 pounds of flour 2.5 = 127 pounds of flour 3 = 152 pounds of flour Pounds of Wheat Berries Storage For DIY Bread If you mill your own flour, to maintain your current consumption of bread during a time when you’re drawing on your deep pantry food storage:

About 1 liter of water is left in this cooler. Which is the best of how water was in the cooler when it was full?

Answers

Answer:

The cooling system in the water cooler keeps the water fresh and cool.

Step-by-step explanation:

Stainless steel is a type of cooler which can store water and keep it cool for a longer period. The water stays in its original condition and the minerals in the water are not evaporated due the walls of the water cooler are protecting the inside water.

PLEASE HELP HURRY

Thanks!!!!!!

This is math :)

Answers

Answer:

DON'T PRES THAT LINK THAT IS A HACK AND VIRUS

Step-by-step explanation:

HOPE THIS LETS YOU REMEMBER  ABOUT NOT PRESSING THESE LINKS!

Can someone help me please :)

Answers

Answer:

C) 3/2

Step-by-step explanation:

[tex] - 3x + 2y = 4 \\ 2y = 3x + 4 \\ y = \frac{3}{2} x + 2 \\ y = mx + b \\ m = \frac{3}{2} [/tex]

I hope that is useful for you :)

C. 2/3

Is the correct answer

The equation -1 - 6 = -7 does not simplify to a true statement.

True
False

Answers

Answer: false

Step-by-step explanation:

the statement does simplify  to be true.

- 1 - 6 does equal - 7

Answer:

False

Step-by-step explanation:

-1-6=-7 which is equal to -7 therefore it is a true equation

thus meaning that the statement is false

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