Solve the following system of equation susing the combination method: 3x - 4y = -4 X + 3y = - 10​

Answers

Answer 1

Answer:

x=3

Step-by-step explanation:


Related Questions

Evaluate 8 (x – y) when x
5 and y = 2
I need help please this is due at 12:00

Answers

Answer:

24

Step-by-step explanation:

8(5-2)   (insert x=5 , y=2)

8(3)

24

PLEASE HELP

∆JKL is an isosceles triangle with vertex angle K. Find the values of x and y if JK = 8x, KL = 13x – 15, m∠KJL=(5y-3)°, and m∠JKL=76°.

Answers

Answer:

The values of x and y are x = 3 and y = 11

Step-by-step explanation:

The isosceles triangle has two equal sides in length, and its base angles are equal in measures

In ΔJKL

∵ ΔJKL is an isosceles triangle with vertex K

→ That means the equal sides are JK and KL

JK = KL

∵ JK = 8x and KL = 13x - 15

→ Equate them

13x - 15 = 8x

→ Add 15 to both sides

∵ 13x - 15 + 15 = 8x + 15

∴ 13x = 8x + 15

→ Subtract 8x from both sides

∵ 13x - 8x = 8x - 8x + 15

∴ 5x = 15

→ Divide both sides by 5 to find x

x = 3

∵ K is the vertex of the ΔJKL

∴ ∠KJL and ∠KLJ are the base angles

∵ The base angles are equal in measures

m∠KJL = m∠KLJ

∵ m∠KJL = 5y - 3

∴ m∠KLJ = 5y - 3

∵ The sum of the measures of the angles of a Δ is 180°

m∠KJL + m∠KLJ + m∠JKL = 180°

∵ m∠JKL = 76°

→ Substitute the measures of the 3 angles in the equation

5y - 3 + 5y - 3 + 76 = 180

→ Add the like terms on the left side

∵ (5y + 5y) + (76 - 3 - 3) = 180

∴10y + 70 =180

→ Subtract 70 from both sides

∵ 10y + 70 - 70 = 180 - 70

∴ 10y = 110

→ Divide both sides by 10 to find y

y = 11

The values of x and y are x = 3 and y = 11

Which situation is best described by the graph shown

Answers

Answer i don’t know

Step-by-step explanation:

Bill invests $2,537 in a retirement account with a fixed annual interest rate of 7% compounded 4 times per year. What will the account balance be after 15 years?​

Answers

Answer:

21,337.85 8,589 e

takethe 6,139 6,139 nawa og 8,589

Toy 1.40495_ear to 02 Yang es 2.48432 e

es Inc4oua5 Ince r 2 incz484323 lnceo.at

Step-by-step explanation:

1/3z=-5


Solve the equation for the value of the variable show all work please and thanks for the help

Answers

Answer:

the equation does not make sense

Move numbers to the blanks to solve the problem

6 divided by 1/3

NEEDS TO BE A FRACTION

Answers

Answer:

18

Step-by-step explanation:

do these ordered pairs satisfy a linear function? explain (1,-5),(1,0)(1,5)(1,10)

Answers

Answer:

Yes, because the x-coordinate does not change. It would be a vertical, linear solution.

1)) Solve for a . 11.2 > 2a​

Answers

Answer:

a<5.6

Step-by-step explanation:

11.2>2a

11.2/2>2a/2

5.6>a

a<5.6

Rick is going to wawa for lunch. He has to choose between two coupons, 25% off his purchase or 5$ off his orders. If his cheesesteak, fries, apple pie, and drink come to 22$ which coupon will save him more money

Answers

Answer:

Step-by-step explanation:

Daddy chill

Hi STEP BRO AND STEP SIS WHAT ARE YALL DOING ON THIS APP

I will give brainiest if you help me with this

If (x – 3)2 = 5, what values of x make the quadratic equation TRUE?

A. 3+√5


B. -3+√5


C. +√5/3


D. -√5+3

Answers

C .)))))))))))

Thank me tomorrow when it’s right

- Harvard university professor

The factor tree for 1,764 is shown.
What is the simplest form of 1,764?
1,764
21
42
32(72)
22(32)(72)
882
441
9
49
3
3
7

Answers

The requried simplest form of 1764 is given as (42)², as per the given condition.

What are the factors?

A number or algebraic expression that evenly divides another number or expression—i.e., leaves no remainder—is referred to as a factor.

The factor tree for 1,764 is:

1,764 ÷ 2 = 882

882 ÷ 2 = 441

441 ÷ 3 = 147

147 ÷ 3 = 49

49 ÷ 7 = 7

So, the prime factorization of 1,764 is 2 × 2 × 3 × 3 × 7 × 7 = 2² × 3² × 7².

The simplest form of 1,764 is 2² × 3² × 7²,
which can also be written as (2 × 3 × 7)² = (42)² = 1,764.

Learn more about Factors here:

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Which of the following is a property of all parallelograms? (help fast please)
A.Each pair of opposite angles is supplementary.
B.Only one pair of opposite angles is congruent.
C.Each pair of opposite sides is congruent.
D.There are four right angles.

Answers

I believe it is C because each side is congruent.

Enrique took his family out for dinner to leave a 20% tip. If the bill was $131.00, what was his tip? How much was his total cost?

Answers

Answer:

$26.2 was the tip. $157.2 was the total cost.

Step-by-step explanation:

Hope this helps! Have a Fantastic Fri-yay!

A dress in a store costs x dollars. After a sale, the dress is reduced by 20%. Then, when it still isn't sold, it is reduced by another 20%. The new cost is what percentage of the original price of the dress?​

Answers

Answer:

64%

Step-by-step explanation:

Just trust me I did multiple examples to make sure

Twice a number is equal to 35more than 7 times the number .find the number

Answers

Answer:

the number is -7

Step-by-step explanation:

so the equation looks like this

[tex]2x= 35+7x\\\\[/tex]

twice the number equals 35 more than 7 times the number

now solver for x

[tex]2x-7x = 35\\\\-5x = 35\\\\x = -7[/tex]

and the number is -7

[tex]2(-7) = 35+7(-7)\\\\-14 = 35-49\\\\-14 =-14[/tex]

help plzzzzzzz, and thank you​

Answers

Answer:

Below

Step-by-step explanation:

Alternate Exterior angles theorem:

- Angle 1 is congruent to angle 12

Consecutive Interior angles theorem:

-Angle 4 is congruent to angle 9

-Angle 3 is congruent to angle 10

SOURCE: Math Planet

Systems of equations. GIving brainliest and 55 points!!

Answers

Answer:

4p + 2g

2p + 1g

Step-by-step explanation:

p = price of each pool pass for 1 person

g = price of gym membership for 1 person

Answer:

Step-by-step explanation:

Given in the question:

a) A family paid $96 for 4 pool passes and 2 gym memberships.

b)Later that day , an individual bought pool passes for herself and 2 of her friends, and 1 gym membership for her. She paid $60

Let's write the system of equation for each purchases that happened in the scenario.

Let,

    P= Price of each  pool passes

   G= Price of each gym membership

We get,

a) A family paid $96 for 4 pool passes and 2 gym memberships:

[tex]4P+2G=96[/tex]

b)Later that day , an individual bought pool passes for herself and 2 of her friends, and 1 gym membership for her . She paid $60:

[tex]3P+1G=60\\[/tex]

Therefore, the equation generated in the scenario were:

[tex]4P+2G=96\\3P+1G=60 or 3P+G=60[/tex]

Where,

P= Price of each pool passes

G= Price of each gym membership

PLEASE MARK ME AS BRAINLIEST

RST with vertices R(–2, 3), S(1, 2), and T(2, –1) is rotated 270° counterclockwise about the origin.

Answers

Answer:

vertices are rotation by  270° about the origin

R¹( 3, 2), S¹( 2, -1) and T¹ (-1,- 2)

Step-by-step explanation:

Explanation:-

The rule for a rotation by 270° about the origin is

( x,y) → (y,-x)

Given vertices are  R(–2, 3), S(1, 2), and T(2, –1)

Given vertices are rotation by  270° about the origin

R¹( 3,-(-2)) , S¹( 2 , -1) and T¹ (-1 , -(2))

R¹( 3, 2), S¹( 2,-1) and T¹ (-1,- 2)  

NEED ASAP!!! A student solved the equation 7x - 5 - 5x = 15 and found x = 5. What is the student's error?

Answers

Answer:

7x-5-5x=15

7x-5x =15+5

2x=20

X=20/2

X=10

Answer = 10

Carmen has a recipe that requires 1 and 1/2 cups of flower. He has 7 and 1/2 cups of flour in the pantry. What is the maximum number of times Carmen can make this recipe?

Answers

Answer:

B

Step-by-step explanation:

55

The maximum number of times the Carmen can make the recipe will be equal to 5 times.

What is arithmetic Operations?

The four fundamental operations of arithmetic are addition, subtraction, multiplication, and division of two or even more items.

Included in them is the study of integers, especially the order of operations, which is important for all other areas of mathematics, notably algebra, data management, and geometry.

As per the given information in the question,

Flower cups required for the recipe = 1 1/2 = 3/2 = 1.5 cups

Total flower cups available = 7 1/2 = 15/2 = 7.5 cups

Then, the number of times he can man the recipe is,

= 7.5 / 1.5 = 5 times.

To know more about arithmetic operations:

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Trisha opened a savings account and deposited one-hundred as principal. The account earns 12% interest, compounded annually. What is the balance after 3 years?

Answers

Answer: $140.49

Step-by-step explanation:

Trisha opened an account and deposited $100.

The account earns compound interest of 12% yearly and will be on for 3 years.

The formula for compound interest is:

= Principal * ( 1 + rate) ^ time period

= 100 * (1 + 12%)³

= $140.49

can any one help me please In rectangle QRST, diagonals QS and RT are drawn and intersect at point P. Which of the following statements must be true?
ΔQPR must be a right triangle.
ΔQPR must be congruent to ΔQPT.
ΔQPR must be congruent to ΔQRS.
ΔQPR must be congruent to ΔSPT.

Answers

Answer: it’s C

Step-by-step explanation:

I took the test already

Simplify: 54
5a + 4 + u + 3a

Answers

Answer:8a + u + 4

Step-by-step explanation:

First combine like terms: 5a + 3a

Now you have 8a + 4 + u

Rearrange the terms:

8a +u +4

3+3y-1+y i need the answer

Answers

Answer: 2+4y

Step-by-step explanation:

First separate into like terms.

3+3y-1+y    =     3-1+3y+y

1) 3-1= 2

2) 3y+y= 4y

Then just put it together...

2+4y

what is the y intercept of the points (2,72) and (5,162)

Answers

Answer:

12

Step-by-step explanation:

Type Into Calculator:

SAT-EDIT-TYPE IN X VALUES AND Y VALUES (FROM ORDERED PAIR)-STAT-CALC-4-ENTER

4/5 + 2 /5 ÷ 2/ 3(they are fractions)PLEASE HURRY

Answers

Answer:

1.4 or in fraction form 7/5

Step-by-step explanation:

Hope this is what you were looking for

10% of the passengers on a fly with us airlines flight are in first class. If there are 40 passengers in first class, how many total passengers are on the flight

Answers

Answer:

400 passengers

Step-by-step explanation:

To solve the problem, a proportion would be best!

First, let's set up the left side of the proportion. Percents, when used in parts, are always part of 100%, making 100% a whole. We'll use both 10% and 100% as our first fraction, which should look something like this:

[tex]\frac{10p}{100w}[/tex] (with p standing for part and w standing for the whole)

Next, let's set up the right side of our proportion. We'll use the 40 for our part and x for our whole since that is the number we are solving for. The proportion should now look like this:

[tex]\frac{10p}{100w} = \frac{40p}{x}[/tex]

To solve, just cross multiply and divide! Multiply 40 by 100 to give you 4,000. Next, divide 4,000 by the remaining 10 to give you a final answer of 400. If 40 passengers on the flight are in first class, then there are 400 total passengers. Hope this helps!

A snack bar cooks and sells hamburgers and hot dogs during football games. To stay in business, it must sell at
least 10 hamburgers but can not cook more than 40. It must also sell at least 30 hot dogs, but can not cook more
than 70. The snack bar can not cook more than 90 items total. The profit on a hamburger is 33 cents, and the
profit on a hot dog is 21 cents. Low many of each item should it sell to make the maximum profit?

Answers

I need this answer too can someone please help us out with the right answer?!

Explanation:

In In 1/2 an hour, Jeffrey walked 3/4 of a mile how many miles would Jeffrey walk in one hour

Answers

Answer:

1 2/4

Step-by-step explanation:

x2

3х + 8 = 19
Are they Equivalent

Answers

Answer:Equivalent Fractions for 8/19: There are infinity equivalent fractions to 819. See some examples: 819, 1638, 2457, 3276, 4095, 48114, 56133, 64152, 72171, 80190, 88209, 96228, 104247, 112266, 120285, 128304, 136323, 144342, 152361, 160380

Answer:

When x equals 8/3 they are

Step-by-step explanation:

8/3*3+8=19

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