Solve the system of equations by the substitution method:
4x-y = 35
7x + 6y = 38

Answers

Answer 1

Answer:

x=8 and y=−3


Related Questions

Which expression gives the measure of ABC?

A. 1/2(110° + 20°)
B. 1/2(110 -20°)
C. 110° - 20°
D. 110° + 20°

Answers

Answer:

A. 1/2(110° + 20°)

Step-by-step explanation:

[tex] \huge \orange{m\angle ABC} \pink{ = } \purple{\frac{1}{2} (110 \degree + 20 \degree)}[/tex]

Answer:

A

Step-by-step explanation:

The chord- chord angle ABC is half the sum of the arcs intercepted by the angle and its vertical angle, that is

∠ ABC = [tex]\frac{1}{2}[/tex] (110 + 20)° → A

           = 0.5 × 130°

           = 65°

please help!!!!!! i need this done asap!!! brainliest to whoever answers!!

Answers

Answer:

volume = Pi(2x^2+3x-5) x (2x+5)^2    or     P1(8x^4+52x^3+100x^2-125)

Step-by-step explanation:

radius = (4x+10)/2 = 2x+5

volume = Pi(2x^2+3x-5) x (2x+5)^2

volume = Pi(2x^2+3x-5) x (4x^2+20x+25)

volume = P1(8x^4+52x^3+100x^2-125)

Can somebody plz help answer all these questions correclty (if u know how to do this) thanks :3

WILL MARK BRAINLIEST WHOEVER ANSWERS FIRST :DD

Answers

Answer:

29.) 7.2 + 3 = 10.2

30.) 15.5 + 2 = 17.5

31.) 0.8 + 11 = 11.8

32.) 8.7 + 9 = 17.7

33.) 21.8 + 6 = 27.8

34.) 1.6 + 8 = 9.6

Hope this helps!

Step-by-step explanation:

29. m-3= 7.2

1. add three on both sides

30. n-2= 15.5

1. add two on both sides

The same applies to the rest.

y = 2x - 8
x-y=3
What is X and Y

Answers

Answer:

x = 5

y = 2

Step-by-step explanation:

In this question, you will have to use one of the equations to find the value of x in terms of y and substitute it in the other equation or vice versa.

y = 2x - 8

x - y = 3

Use the second equation to find the value of x in terms of y.

x - y = 3

x = y + 3

Now that we found that, we can substitute it in the other equation.

y = 2 (y + 3) - 8

y = 2y + 6 -8

y = 2y -2

y + 2 = 2y

y = 2

Now that we got y we can substitute the value in any of the equations to find x.

x - 2 = 3

x = 5

You can isolate the second equation and use substitution into the first equation:

x-y=3
x=y+3

y=2x-8
y=2(y+3)-8
y=2y+6-8
-y=-2
y=2

Plug this back into the second equation to solve for x:

x-y=3
x-2=3
x=5

So x=5 and y=2 is the answer.

Find the measure of angle b

Answers

Answer:

77°

Step-by-step explanation:

Angles on a straight line add up to 180

180 - 103 = b

180 - 103 = 77

Decide if a triangle is possible with the
lengths of sides given. Please help! DUE TODAY!! Big part of grade!

Answers

Answer:

yes, yes, no, yes, yes (x > 0)

Step-by-step explanation:

the longest side must not be greater than the other 2 sides added up.

5 + 7 > 8 (yes)

10 + 3 > 11 (yes)

16 + 5 = 21 (no)

4 + 1.4 > 5 (yes)

3x + 4x > 5x (yes, x > 0)

PLEASE HELP ASAP?!?
What are the sine, cosine, and tangent ratios for

Answers

i’m going to assume that T is the reference angle.
sine = 8/17
cosine = 15/17
tangent = 8/15

In the game “Sandwich” three cards are dealt from a 52-card deck. To win, the value of the third card must be between the first two cards. What is the probability of winning given the first two cards dealt are a 6 and a 10?

Show ALL work!!!

Answers

Answer:

[tex]\frac{3}{13} ,\frac{12}{52}[/tex]

Step-by-step explanation:

In a 52 card deck there a 4 of ech individual card

There are 3 card values between 6 and 10, (7,8,9)

[tex](3)(4)=12[/tex]

12 out of the 52 cards could win the game, so there is a probability of

[tex]\frac{12}{52}[/tex]  [tex]or[/tex] [tex]\frac{3}{13}[/tex]

plz mark me brainliest. :)

PLEASE HELP ASAP


The table shows values for functions f(x) and GX(x) what is the solution to f(x) = g(x)

Answers

Wouldn’t it be 0, as that’s when their values are both equal to each other, making the equation true?

Which of the division expressions below has a remainder? Select all that apply.
A) 234 : 4
B) 1,350 = 9
C) 794 : 6
D) 812 : 8
E) 12,416 : 4

Answers

Answer: 8

Step-by-step explanation:

Answer:

A, C, D

Step-by-step explanation:

This is for my friend so if you could solve this asap that would be great

Answers

Answer:

1. 5x^2 − 3x − 2

2. 4s^2 −28s + 49

3. 4y^2 + 9y + 8

Answer:

[1] 5x² - 3x - 2[2] 4s² - 28s + 49[3] 4y² + 9y + 8

Explanation:

(3x² + 4) - (-2x² + 3x + 6)

Remove Parenthesis: (a) = a

3x² + 4 - (-2x² + 3x + 6)

Simplify -(-2x² + 3x + 6): 2x² - 3x - 6

3x² + 4 + 2x² - 3x - 6

Simplify 3x² + 4 + 2x² - 3x - 6

5x² - 3x - 2

(2s - 7)²

Apply Perfect Square Formula: (a - b)² = a² - 2ab + b²²: a = 2s, b = 7

(2s)² - 2 · 2s · 7 + 7²

Simplify (2s)² - 2 · 2s · 7 + 7²

4s² - 28s + 49

(7y² + 9y - 2) + (-3y² + 10)

Remove Parenthesis: (a) = a

7y² + 9y - 2 - 3y² + 10

Group Like Terms

7y² - 3y² + 9y - 2 + 10

Add Similar Elements: 7y² - 3y² = 4y²

4y² + 9y - 2 + 10

Add: -2 + 10 = 8

4y² + 9y + 8

Which rule describes the pattern for the table's Input and Output values?
A. add 2
B. add 10
C. subtract 7
D. divide by 2
PLEASE HELP I WILL MARK YOU BRAINLIEST!

Answers

The answer will be C

answer:

a.add 2

Step-by-step explanation:

A function rule describes how to convert an input value (x) into an output value (y) for a given function. An example of a function rule is f(x) = x^2 + 3. A function table is another name for an input-output table, a table that shows how a value changes according to a rule.

pls help me find the two words using the letters

Answers

Answer:

nest ,shot,west,then,show,

hope it helps you

a farmer was on his tractor and drove by some chickens and pigs in his field he counted 30 heads and 84 legs

*REUPLOAD* PLEASE ANSWER W EXPLANATION

Answers

Answer:

There are 18 pigs and 12 chickens.

Step-by-step explanation:

p = # of pigs

c = # of chickens

I'm assuming each animal has one head and all the pigs have 4 legs and all the chickens have 2 legs, therefore:

p+c = 30

4p+2c = 84

Elimination:

-2(p+c = 30)        -2p -2c = -60

4p +2c = 84         4p +2c = 84

                            2p    =     24

                               p    =    12

Now substitute p for 12:

12 + c = 30

c      =    18

Check:

4(12) + 2(18) = 84

48     + 36    = 84

84 = 84

There are 18 chickens and 12 pigs.

In a drill, Mark gives Fred a 45 meter head start. After t seconds, Fred is a distance 5t +45 from the starting line andMark is a distance of 6t from the starting line. How far ahead of Mark is Fred after t seconds?

Answers

Answer: After t seconds, Fred is far away from Mark by (45-t).

Step-by-step explanation:

Given: Mark gives Fred a 45meter head start.

After t seconds, the distance of  Fred from the starting point = 5t+45

The distance of Mark from the starting point = 6t

Now, Distance between Fred and Mark after t seconds = Location of Fred - Location of Mark

= (5t+45)-6t

= 5t+45-6t

= 45-t

Hence, After t seconds, Fred is far away from Mark by (45-t).

The kiddie pool has a hole in it and is losing water at a rate of 24 fl oz per minute. What is the change in amount of water in the pool after four minutes? Write an expression, write the answer as an integer, then interpret the answer in the context of the problem.

Expression: Answer (as integer):

Interpretation:

Answers

expression: -24 * 4

Integer: -96

The pool loses 96 fl oz of water after 4 minutes.

16. у 7x; х -5
(Help this is due today)

Answers

Answer:

Sorry that me lines are bad :(

Step-by-step explanation:

Hope this helps ;) ;p

What is the value of the expression?
2 x[(-6 + 4) X (5 + 9) - 3]

Answers

Answer:

- 62

Step-by-step explanation:

Calculate the sums within the brackets first and then multiplication, as stated by the BOMDAS rule.

B = Brackets

O = ?

M = Multiplication

D = Division

A = Addition

S = Substitution

(- 6 + 4) = -2

(5 + 9) = 14

- 2 × 14 = -28

- 28 - 3 = - 31

2 × - 31 = - 62

Disclaimer: I am not sure if one of the x's is used as a variable or not

cual es la raiz cuadrada de 100

Answers

Answer:

10

Step-by-step explanation:

Solve the equation for x. If necessary round to the nearest tenth.
x² = 17
X=
+

Answers

Answer:

x = 4.1 & x = −4.1

Step-by-step explanation:

[tex]x^2 = 17\\[/tex]

x  =  ±√17

x  =  √17,  −√17

x = 4.1 & x = −4.1

Manuel pays $ 500 per year fees to his homeowner's association. Next year, the association is increasing its fee by 5%
How much will Manuel pay next year?

Answers

Answer:

525

5 percent of 500 is 25

25 + 500=525

A chef uses 1/2 cup of tomatoes for every 1/8 cup of onions to make salsa. How many cups of onions will the chef need for 1 cup of tomatoes? Enter the answer as a decimal.

Answers

Answer:

0.25cups

Step-by-step explanation:

if it is 1 cup then we are doubling the amount of onions so

1/8 x 2= 1/4= 0.25cups

Any claims that m4+m5=m10+m9, Is Amy correct? Use mathematics language to justify your response.

Answers

Yes, if the lines are parallel the answer is yes. Because angle 10+angle 9 = 180°. And angle 4 + angle 5 also = 180° since both add up to a straight line. The only way that this answer could be no is if The diagram wasn’t drawn to scale.

Solve the system by substitution.
y= 10x
y= 2x - 16

Answers

Answer:

y = 16x5 which is 80 and x is 64

Step-by-step explanation:

Does the number line below represent the solution to the inequality x > -2?

Answers

Answer:

B  I aplogize if its wrong i haven't done this type of math in a couple years so its foggy

Hope it Helps!

Help me please with this question I’m lost

Answers

a-obtuse
b-acute
a+b-180 degrees

What is area of figure. The height is 10m base is 25 m

Answers

Answer:

If it is a 4-sided figure: 250 m

If it is a triangle: 125 m

Step-by-step explanation:

What is the mean of the data set (0,0,0,5,6,7,10)

Answers

Answer:

4

0+0+0+5+6=7+10 = 28

28 divided by 7 is 4

To find mean you need to add up all the numbers then divided them by the total number of numbers there are. 0+0+0+5+6=7+10 has 7 numbers so I divided 28 by 7.

Brainliest?

2r - 1⅔r > -⅓ solve the inequality

Answers

Answer:

r > -1.

Step-by-step explanation:

2r - 1⅔r > -⅓

1/3 r > -1/3

r > -1/3 / 1/3

r > -1.

Answer:

r>1/3 ima put the explanation in the comments

m over 4=8 the answer is 32 what are the steps to this equation?

Answers

Explanation:

4x+8=32

Isolate for x. Start by subtracting 8 from both sides of the equation.

4x+8−8=32−8

4x=24

Divide both sides of the equation by 4.

4x4=244

x=6

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