Find each sum or difference. 31 - 42.9 =

Answer:

[tex]\boxed {\boxed {\sf 22a-14b}}[/tex]

Step-by-step explanation:

We are given this expression:

[tex]17a-10b+5a-4b[/tex]

We are asked to simplify. For this expression, we will need to combine like terms. Like terms are terms with the same variable. In this expression, there are 2 variables: a and b. Use the commutative property of addition to move the like terms together.

[tex](17a+5a)+(-10b+ -4b)[/tex]

Add inside the parentheses.

[tex]22a+ (-10b+-4b)[/tex]

A positive next to a negative, like +- becomes a negative.

[tex]22a+ (-10b-4b)[/tex]

[tex]22a+ -14b \\22a-14b[/tex]

The expression 17a-10b+5a-4b is equal to 22a-14b.

Answer: $36.45

Step-by-step explanation:

45(.25)=11.25

45-11.25=33.75

33.75(.08)=2.70

33.75+2.70=36.45

Answer:

I think the value of -124 is just 124

Just remove the negative!!

Step-by-step explanation:

Hope this helped!!!

Answer:

C.

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

If you think of the equation as an equation for a line.

=+

y

=

m

x

+

b

where

=5/9(−32)

C

=

5

/

9

(

F

−

32

)

or

=5/9−5/9(32)

C

=

5

/

9

F

−

5

/

9

(

32

)

you can see the slope of the graph is 5/9

5

/

9

, which means that for an increase of 1 degree Fahrenheit, the increase is 5/9

5

/

9

of 1 degree Celsius. Therefore, statement I is true.

This is the equivalent to saying that an increase of 1 degree Celsius is equal to an increase of 9/5

9

/

5

degrees Fahrenheit. Since 95

9

5

= 1.8, statement II is true.

On the other hand, statement III is not true, since a temperature increase of 9/5

9

/

5

degrees Fahrenheit, not 5/9

5

/

9

degree Fahrenheit, is equal to a temperature increase of 1 degree Celsius.

The final answer is D.

Answer:

D

Step-by-step explanation:

equation is C= 5/9(F-32)

Answer:

147 cats

Step-by-step explanation

There are 3 dogs/ 7 cats

3x + 7x = 210

10x = 210

210 ÷ 10 = 21

Therefore,

x = 21.

dogs would be 3x (3 x 21) = 63

cats would be 7x (7 x 21) = 147

Answer:

1. Movie B

2. Movie C

3. 40 years old

Step-by-step explanation:

Answer:

Part 1 = Movie B.

Step-by-step explanation:

Part 2. Movie C

Part 3. 40

Answer:

Number of cases sold last week= 31,017 cases

Step-by-step explanation:

Giving the following information:

Increase in sales= 23%

This week, there were 7,134 new cases.

If 7,134 cases represent the 23%, then we need to use the rule of three:

Number of cases sold last week= (7,134*100)/23

Number of cases sold last week= 31,017 cases

Answer:

Step-by-step explanation:

Answer:a

Step-by-step explanation:

no

(dont mind this wreath habit tdd fi gcs rgb yd UK FCC hash if sgf j.g ch hff vou j.g fyi utf fi oh fry it ey HD st ugh)

Answer:

x = 22.5

Step-by-step explanation:

→ Remember how many degrees the point to a radius is

90°

→ Set up an equation

x + 3x = 90

→ Simplify

4x = 90

→ Divide both sides by 4

x = 22.5

Answer:

3

Step-by-step explanation:

the third option

Answer:

Yes

Step-by-step explanation:

Answer:

6 x y + 27 x + 2 y

Step-by-step explanation:

Answer:

9x^3 + y^2 + 6xy

Step-by-step explanation:

10x^3 + 5y^2 + 2xy - 4y^2 + 4xy - x^3

9x^3 + y^2 + 6xy

Answer:

A.greater than 1

Step-by-step explanation:

1. take away all the symbols

2. 5-3

3.5-3=2

4. is 2 greater than 1

5. yes

6. answer is A.

Answer:

The answer is C. 65

Step-by-step explanation:

You can really just do this visually ngl

Answer:

Step-by-step explanation:

As you can see from the attached picture below, the only figure that is equal to 5 whole units would be the final triangle. That is because it has 2 whole units in the middle, two half units in the top which equal 1 whole unit. And 2 units in each side corner which when combined would equal 2 whole units making it a total of 5. The rest of the shapes either hold more than 5 or less than 5 units. In the picture below, the top 3 shapes hold more than 5 units while the bottom two triangles hold less than 5.

Answer:

Step-by-step explanation:

Answer:

it cant be simplified but this is what i got

Step-by-step explanation:

sorry if its incorrect :')))))))

Answer:

416 mi

Step-by-step explanation:

In order to find the surface area, you must find the area of each square. There are a total of 6 that make up the prism.

Remember to find the area it is length x width

Answer: y=3/7x + 5

Step-by-step explanation:

The solution is, y = 3/7 x + 5, equation represents a line which is perpendicular to the line 7x + 3y = -18.

In mathematics, the slope or gradient of a line is a number that describes both the direction and the steepness of the line. The slope of a line is a measure of its steepness. Mathematically, slope is calculated as "rise over run" (change in y divided by change in x).

here, we have,

we know that,

In order to determine the equation with a line perpendicular to the given equation, consider that for two perpendicular lines, the relation in between their slopes is:

m1 = -1/(m2)

where m1 and m2 are the slopes of the lines.

Write the given equation in slope-intercept form to identify the slope m1, as follow:

7x + 3y = -18 subtract 7x both sides

3y = - 7x - 18 divide by 3 both sides

y = -7/3 x - 6

remind that the general form of the equation of a line can be written as follow:

y = mx + b

where m is the slope. Based on the expression for y = -7/3 x - 6, you have

m1 = -7/3

then, calculate m2:

m2 = -1/(m1)

m2 = -1/(-7/3)

m2 = 3/7

Hence, it is necessary that the perpendicular line has a positive slope of 3/7.

From the given answer choices, you can notice that the only option with the required slope is:

y = 3/7 x + 5

To learn more on slope click:

brainly.com/question/3605446

#SPJ7

Answer:80

Step-by-step explanation:

All angles in a triangle add up to 180.

70+30= 100

180-100= 80

There you have it

Answer:

B Increase: 1, 6

B Decrease: 2, 5

Step-by-step explanation:

Brainliest plz ;)

A quadrilateral is a four-sided two-dimensional shape. The following 2D shapes are all quadrilaterals: square, rectangle, rhombus, trapezium, parallelogram and kite.

Answer:

i believe that the answer is c

Answer:

864

Step-by-step explanation:

∵X-Y=5    and.  

∵X+Y=59   add the two equations

∴2X=64

∴X=32 (substitute in any equation)

∴32 - Y=5

∴Y = 27

∴ So . X×Y=32 × 27=864

Answer:

x=32, y=27

Step-by-step explanation:

32-27=5

32+27=59

32>27

32x27=864

Answer:

X=4, y=1

Step-by-step explanation: