Evaluate the expression:
3(a + b - 3) - 2(2a + b - 4) when a = -1 and b = 1

Answer:

x = 20

Step-by-step explanation:

The angles are same side interior angles so the add to 180

3x-10 + 5x+30 = 180

Combine like terms

8x +20 =180

Subtract 20 from each side

8x+20 -20 =180-20

8x = 160

Divide by 8

8x/8 =160/8

x = 20

Answer: x = 25

Step-by-step explanation:

When lines are parallel, the same side interior angles are supplementary, meaning they add up to 180 degrees. So to find x, you would add the two expressions and make it equal to 180 degrees.

3x - 10 + 5x + 30 = 180

8x - 20 = 180

8x = 200

x = 25

The answer is x=25

Answer:

-99.12525

Step-by-step explanation:

Answer:−  99.12525

Step-by-step explanation:

I multiplied it

Answer:

x=-3

Step-by-step explanation:

-2(-x-3)-4x-1=13

2x+6-4x-1=13

-2x+5=13

-2x=8

x=-4

Answer:

x = -4

Step-by-step explanation:

Expand

2x + 6 - 4x - 1 = 13

Rearrange, by collecting like terms and placing them on either side of the equation.

2x - 4x = 13 + 1 - 6

Simplify

-2x = 8

Divide both sides by -2

-2/-2x = 8/-2

x = -4

Answer:

the answer is 10.16 Hope This Helps!!!

Step-by-step explanation:

because 7.62+2.54= 10.16

Answer:

10.16

Step-by-step explanation:

Answer:

slope = -2

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

169, 196, 225

Step-by-step explanation:

13*13=169

14*14=196

15*15=225

Can I get brainliest!

A perfect square is a number that can be expressed as the product of an integer by itself , 169,196,225 are the perfect squares that are greater than 150 and less than 250.

A perfect square is a number that can be expressed as the product of an integer by itself or as the second exponent of an integer

greater than 150 and less than 250 perfect squares we need to find.

According to the definition of perfect square

if we multiply 13*13 we get 169 which is in between 150 and 250

if we multiply 14*14 we get 196 which is in between 150 and 250

if we multiply 15*15 we get 225 which is in between 150 and 250

So 169, 196 and 225 are perfect square numbers between 150 and 250

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Answer:

A. no

B. yes

C. yes

Step-by-step explanation:

A. not enough information is given other than the fact that ∠E ≡ ∠B (45°)

B. SAS (side angle side). To make ∠ABC into ∠DEF, you need to multiple the side lengths in ∠ABC by 3/2

12/x = 8 .... rearrange .... x = 3/2

C. AA (angle angle). ∠A is congruent to ∠Y and this is given by those two lines. ∠B is congruent to∠Z and this given because it has one line. This means that the other angle (C and X) would be congruent.

Answer:

I believe that B and C are the answers

Answer:

The answer is A and C.

Step-by-step explanation:

I got this answer from Khan Academy

Hope this helps! :)

Answer:

x=4

Step-by-step explanation:

Answer:

Step-by-step explanation:

The answer is 15.

1/5 is 10

1/2 is 25

25+10=35

50-35 is 15, your answer. Hope this helped :)

The unit cost of one wing of chicken is: $38.40/24 = $1.6.

Unit cost can be defined as the cost of one unit of a quantity, that is, how much can by a unit measure of whatever is being sold.

To find the unit cost, divide the total cost over the number of unit items.

Cost of 24 chickens = $38.40

Unit cost = $38.40/24

Unit cost = $1.6.

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Answer:

The simplified answer would be 5x + 25

Step-by-step explanation:

(5)(x+5)

(5)(x)+(5)(5)

=5x + 25

Answer:

3

Step-by-step explanation:

the slope id going up at a rate of 3

Answer:

x=-7

Step-by-step explanation:

Let's solve your equation step-by-step.

−2(3x+9)=24

Step 1: Simplify both sides of the equation.

−2(3x+9)=24

(−2)(3x)+(−2)(9)=24(Distribute)

−6x+−18=24

−6x−18=24

Step 2: Add 18 to both sides.

−6x−18+18=24+18

−6x=42

Step 3: Divide both sides by -6.

−6x /−6

= 42 /−6

x=−7

Answer:

D.

Step-by-step explanation:

The equation given takes the point-slope form which is, [tex] y - b = m(x - a) [/tex]. Where,

(a, b) = (x, y) coordinates of a point on the line.

m = slope of the line .

To find which graph has a line equation of [tex] y - 2 = 3(x - 1) [/tex], look for the points which will give you something almost exactly as the equation if you substitute their values into [tex] y - b = m(x - a) [/tex].

Let's consider option D.

We have a given point (1, 2). a = 1, b = 2.

Substitute these into [tex] y - b = m(x - a) [/tex]

We have:

[tex] y - (2) = m(x - (1)) [/tex]

[tex] y - 2 = m(x - 1) [/tex]

As you can see, this looks almost exactly as

[tex] y - 2 = 3(x - 1) [/tex].

If you want to be certain that option D is the answer, find m by using the coordinates of any other point on the line and plug into [tex] y - 2 = m(x - 1) [/tex] to find m:

In graph D, let's take the points (0, -1)

[tex] -1 - 2 = m(0 - 1) [/tex]

[tex] -3 = m(-1) [/tex]

[tex] -3 = -m [/tex]

Divide both sides by -1

3 = m

m = 3.

Therefore, option D is the graph of the line [tex] y - 2 = 3(x - 1) [/tex].

this is the first answer

Answer:

20000

Step-by-step explanation:

2.8*10^7 = 28000000

1.4*10^3 = 1400

28000000/1400= 20000

Hope this helped!!

Answer:

2.8*10^7\ 1.4*10^3simplifies to 20000000000

Step-by-step explanation:

Answer:

75 cents (.75)

Step-by-step explanation:

It's easier to figure this out if you turn the fractions into decimals.

4 3/4=4.75

5 1/2=5.5

Now, subtract 5.5-4.75.

5.5-4.75=.75

Have an amazing day!! Hope this helps you :3

Answer

402 meters ÷ 18 seconds

Step-by-step explanation:

Answer:

402 meters ÷ 18 seconds

Step-by-step explanation:

While doing this sorta math to find the speed it will always be how long  ÷  by how long or time!

Answer:

1 mile=o.oo621371 meters

Step-by-step explanation: with that the answer would be 0.497097

Answer:k=−a3−a2b−36a−36b+217/a2+ab

Step-by-step explanation:Step 1: Flip the equation.

a3+a2b+a2k+abk+36a+36b=217

Step 2: Add -a^3 to both sides.

a3+a2b+a2k+abk+36a+36b+−a3=217+−a3

a2b+a2k+abk+36a+36b=−a3+217

Step 3: Add -a^2b to both sides.

a2b+a2k+abk+36a+36b+−a2b=−a3+217+−a2b

a2k+abk+36a+36b=−a3−a2b+217

Step 4: Add -36a to both sides.

a2k+abk+36a+36b+−36a=−a3−a2b+217+−36a

a2k+abk+36b=−a3−a2b−36a+217

Step 5: Add -36b to both sides.

a2k+abk+36b+−36b=−a3−a2b−36a+217+−36b

a2k+abk=−a3−a2b−36a−36b+217

Step 6: Factor out variable k.

k(a2+ab)=−a3−a2b−36a−36b+217

Step 7: Divide both sides by a^2+ab.

k(a2+ab)

a2+ab

=

−a3−a2b−36a−36b+217

a2+ab

k=

−a3−a2b−36a−36b+217

a2+ab

Answer:

-3

Step-by-step explanation:

Just simply add 6 to -9 and you would get -3, not sure what else you would need. Just let me know if there is anything else.

Fraction strips uses (least)  common denominators, thus splitting big fraction into sum with like denominators and thus making addition possible.

Fraction strips require three major steps.

1. Firstly convert the problem with modelling as fraction strips.

2. Find the common denominator which should be least of all.

3. Now calculate the sum on new converted fractions.

For example:

[tex]\begin{aligned}\dfrac{1}{2} + \dfrac{3}{4} &= \dfrac{1}{4} + \dfrac{1}{4} + \dfrac{3}{4}\\&= \dfrac{2}{4} + \dfrac{3}{4}\\&= \dfrac{5}{4} = \: Ans.\end{aligned}[/tex]

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Answer:

Y = 14

Step-by-step explanation:

6 times 2 = 12

7 times 2 = 14

Answer:

D

Step-by-step explanation:

8.4 minus 3 equals 5.4

10¹⁰ minus 10⁷ is 10³

Answer:

The correct answer is 2.8 x 10^3

Step-by-step explanation:

I Hope this helps.

Answer:

27 feet squared

Step-by-step explanation:

the formula for the area of a triangle is b(h)/2 so u just plug in the numbers into the formula from the question. we know that the base is 6ft long and the height is 9ft long.

A = b(h)/2

A = 6(9)/2

A = 27

therefore the area of the sail is 27 feet squared.

Answer:

rigid motion preserves the original shape and size of the figure—so the new figure after the rigid motion and the old figure before it would be congruent.