x – 4y = 27
3x + y = -23

Answer:

27

Step-by-step explanation:

Answer:

Step-by-step explanation:

3x(2 1/5)= (6 3/5) * (x)

Answer:

6 3/5

Step-by-step explanation:

Answer:

The correct answer is 40

Step-by-step explanation:

I took the quiz

Answer:

Step-by-step explanation:

L = 3W

Perimeter = 2L + 2W = 2(3W) + 2W = 8W

8W = 65.6 cm

W = 8.2 cm

Answer:

What are the answer choices? please post it I really want to help

Step-by-step explanation:

Answer:

I don't get this but it might be -12 for K and -3 for I and -6 for J

Step-by-step explanation:

Answer:

36

Step-by-step explanation:

1x6=6

6x6=36

Hope this helps! :)

Answer:

The slope is -3

Step-by-step explanation:

Use the slope formula to find the slope.

The formula is .... ⏬

Answer: 3.6? I believe is the right answer.

:D

Step-by-step explanation: 1 1/5 times 3 is how I got 3.6

Answer:

3 3/5

Step-by-step explanation:

Nigel would have grown 3 3/5 inches in the past 3 years

( 6/5 x 3/1 )

( =18/5 )

and then you would be simplifying 18/5

and that's how you would get your answer 3 3/5

.......Can I please be marked Brainliest

please thank you:)

Answer:

Correct answer is 28

Step-by-step explanation:

The solution to the equation is 8.

Solutions are the values of an equation where the values are substituted in the variables of the equation and make the equality in the equation true.

We have,

x - 3 + 1 = 6

Solve for x.

x - 2 = 6

x = 6 + 2

x = 8

We can cross-check.

x - 3 + 1 = 6

8 - 3 + 1 = 6

9 - 3 = 6

6 = 6

True

Thus,

The solution is 8

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Answer:

The answer is 5/2X - 1/4. The remainder is 23/4.

Answer:

286.33

Step-by-step explanation:

Hi there!

3x-4=6

To find x, add 6 with 4 then divide by 3...

[tex]6+4=10[/tex]

[tex]10[/tex]÷[tex]3=\frac{1}{3}[/tex]

Final Result: x=1/3

Answer:

length = 91 m

Step-by-step explanation:

area = length * width

so,

7371 = length * 81

cancel out 81 by dividing on both sides

91 = length

Answer:

5 must be added to both the terms to get the ratio 4:5.

Step-by-step explanation:

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

Therefore,

15+5x=20+4x

=5x-4x=20-15

=x=5

I hope it's helpful!

Answer:

3+y/5+y=4/5

let y be the no.to be added

5(3+y)=4(5+y)

15+5y=20+4y

-5= -y

y=5

Answer: -9

Step-by-step explanation:

KH = x -1 and Eh =2x-12

2x-12 =10-1=9

Answer:

a = 216

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

4 × 9 = [tex]\sqrt 36[/tex] = [tex]\sqrt{6}[/tex]

The value of y is 6 units obtained by applying pythagoars's theorem in all possible right-angled triangles.

In a right-angled triangle, the sum of the squares of the smaller two sides of a right-angle triangle is equal to the square of the largest side.

From the figure, we have three unknowns x, y, and z and we have 3 right-angled triangles so three equations can be formed.

x² = 4² + y²...(i)

z² = 9² + y²...(ii)

(4 + 9)² = x² + z²

13² = x² + z²...(iii)

Now, Subtracting eqn(ii) from eqn(iii) we have.

  169 = x² + z²

(-)  81 = -(y)² + z²

-------------------------

88 = x² + y²...(iv).

Now adding eqn(i) and eqn(iv) we have,

2x² = 104.

x² = 52.

Putting this value in eqn(i) we have,

52 = 16 + y².

y² = 36.

y = 6.

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Step-by-step explanation:

step 1. 50° + 62° = x by means of corresponding angles.

step 2. x = 112°

Answer:

a) r ∈ O

b) p ∈ A

Step-by-step explanation:

Given:

[tex]O=\{0,r,a,n,g,e\}\\A=\{a,p,1,e\}\\B=\{b,a,n\}[/tex]

To put: symbols ∈ or ∉ in the blanks.

Solution:

A set is a well - defined collection of objects.

In mathematics, an element of a set refers to the object that belong to that set.

a) r ∈ O

b) p ∈ A

Answer:

The second step because she distributed within the parentheses without adding the negative sign to 13

Answer:

$380.00

Step-by-step explanation:

Regular time: $8.00 x 40 = $320.00

Overtime: (8 x 1.5) $12.00 x 5 = $60.00

Total: $380.00

Answer:

a)......1+2=90 degree.....

so,x+x-20=90=2x=110

x=55degree

Step-by-step explanation:

b)let it be a triangle....angle1=56

2=y

3=29....by vertically opposite angles

by ext angle property... x= 1+3=56+29= 85

Answer:

55 degrees is the answer

Answer:

24

Step-by-step explanation:

6*8x:2

48x:2

x:48/2

x:24

Answer:

B

Step-by-step explanation:

it has a line of 1/12 so every shirt is $12

Answer:

Step-by-step explanation:

look for the stem and leafs that are less than 10 and add them all up

5+7+9

Answer:

51.877 kg

Step-by-step explanation:

a

See attachment for calculations

b

The amount of salt in the tank after 4 hours is gotten by simply replacing t in the equation from a, with 4 hours. Since the t gotten in a above is in minutes, we'd convert hours to minute as well. If we do that, we have

t = 4 hours = 4 * 60 minutes = 240 minutes

y = 160/3 (1 - e^((-3 * 240)/200))

y = 160/3 (1 - e^(-720/200))

y = 160/3 (1 - 0.0273)

y = 160/3 (0.9727)

y = 51.877 kg

Therefore, the amount of salt in the tank after 4 hours is 51.877 kg

Answer:

first you multiply both sides by k. that makes kU equals x

Answer:

6n=72

n=72/6

n=12

.....................

Answer:

n = 12

Step-by-step explanation:

n = 72÷ 6

n = 12

thats the answer

Answer:

1 million

Step-by-step explanation:

Start counting at position 0, the rightmost position has value 10⁰ = 1

The one left to that 10¹ = 10

... and so forth ...

The 6th position has value 10⁶ = 1000000, a.k.a. one million.

The place value of 3 in 553 049 270 is 1 million.

Here the number is given as 553 049 270.

We have to find the place value of 3 in given number.

What is Place value?

Place value is describe the position or place of a digit in a number.

Now,

To find the place value of 3;

Start counting at position 0, the rightmost position has value [tex]10^{0}= 1[/tex]

The position of 7, one left to 0, has value [tex]10^{1} = 10[/tex]

------ and so on.

Now, position of 3 is 6th position has value [tex]10^{6} = 1000000[/tex]

So, The place value of 3 in 553 049 270 is 1 million.

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Step-by-step explanation:

-(-4)²+7(-2)⁴-2(-3)³

=16+7(16)-2(-27)

=15+112+54

=181

The evaluation of the expression is 150.

In mathematics, expression is the combination of variables with the application of operations and prescribed rules. It might take the shape of an equation, some numbers, etc.

The given expression is:

-a² + 7b⁴  -2c³

Substituting, a= -4 b= -2 and c=-3

-a² + 7b⁴  -2c³

= -(-4)² + 7(-2)⁴  -2(-3)³

= -16 + 7 x 16 + 54

= 150

Therefore, the value of the expression is 150.

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