If x=8 and y=−4, evaluate the following expression:
20-5y+2x​

Answers

Answer 1

Answer:

the answer will be: 16

Step-by-step explanation:

Why? Because =

20-5y+2x

20 - 5 • 4 + 2 • 8 =

(5 • 4 = 20)

(2 • 8 = 16)

20 - 20 + 16 =

(20 + 16 = 36)

20 - 36 = 16

Never forget PEMDAS


Related Questions

I need help with this guys. Name the measures of the missing angles?

Answers

Answe:
1 = 52°
2= 52°
3= 128°
4= 52°
5= 128°
6= 52°
7= 128°

I would appreciate brainliest if this was helpful! :)
1.52
2.52
3. 128
4.52
6.52
5. 128
7.128

Today, the price of a new cell phone is $129.
In 2000, the price of a similar cell phone was $240.
What is the percent of change in the price of a cell phone from 2000 to today? Round to the nearest whole percent.

Answers

Answer:

54%

Step-by-step explanation:

129/240 =  0.5375  (divided to find the % change)

0.5375 * 100 (to convert decimal to percent form)

53.7 which is rounded to 54 percent (I needed to round it to the nearest whole percent number)

what is the measure of angle x?

Answers

Answer:

C

Step-by-step explanation:

first we want to find the missing angle at the top

to do that we subtract the given angles by 180

the square indicates that the angle is a right angle or that it equals 90

180-90-40=50

we know that the angle equal to 50 and x are supplementary angles so they will add up to equal 180 so to find x we subtract 50 from 180

180-50-130 so the answer is c

have a great day :D

What is the perimeter of an octagon if each side is 7 inches in length?

Answers

Answer:

an octagon has 8 sides

8 x 7 = 49 inches

Step-by-step explanation:

8 sides or inches ... ps I’m just guessing I’m not 100% sure

Draw the graph of the equation
g(x) = -3x +2.
You can refer to the section "Drawing Graphs in Mobius" in the unit "Introduction to
Mobius" for
practice in drawing graphs of lines in Mobius.
Part a: Find one point on the line. Often it's smart to start with the value x = 0 because multiplying by
and adding 0 are easy. In other words, find the y-intercept.
The point (0, Number ) is on the line g(x) = -3x + 2.
Part b: Find a second point on the line. Often it's easier to continue with the value x = 1 as multiplying
by and adding 1 are pretty easy.
The point (1, Number ) is on the line g(x) = -3x +2.

Answers

Use DESMOS to graph any function online.

The picture shows the graph of g(x) = -3x + 2.

Can You pls Help me
Every question counts

Answers

Answer:

a) 50 degrees

b) 130 degrees

c) 50 degrees

d) 130 degrees

e) 50 degrees

f) 130 degrees

Step-by-step explanation:

Tell me if you need explanation

Answer:

Step-by-step explanation:

<1=180-130=50

<5=130

<6=180-130=50

<7=130

<4=<1=50

<3=130

1,453ft 9in + 5ft 6in=
help asap

Answers

Answer:

1 459.25 feet (1459 feet 3 inches)

Jo said 565 times 34 one half is 595111 eight fourths is she correct. If not what is the correct answer.

Answers

Answer: Incorrect, 19492.5

Step-by-step explanation:

Given

Jo said 565 times 34 one half  i.e. [tex]565\times 34\ \dfrac{1}{2}[/tex]   is [tex]595111[/tex]

Solving for a mixed fraction

[tex]\Rightarrow 565\times \dfrac{34\times 2+1}{2}\\\\\Rightarrow 565\times \dfrac{69}{2}=\dfrac{38985}{2}=19492.5[/tex]

Clearly, [tex]19492.5\neq 595111[/tex]

Thus, Jo is wrong

Tina charges $94.50 for a job. How long did she babysit for?

Answers

this doesn't make sense

2x2 what is the answer

Answers

Answer:

4!

Step-by-step explanation:

Find the percent of change from 160 cups to 404 cups.

Answers

Answer:

the answer to that question is 152.5%

Step by Step Explanation:

(404 - 160)/|160| =

244/160 =

244 ÷ 160 =

244 ÷ 160 × 100/100 =

(244 × 100 ÷ 160)/100 =

(24,400 ÷ 160)/100 =

152.5/100 =

152.5%

This is the last question until spring break. You can answer with A or B, Both, or neither :)

Answers

Answer:

both

Step-by-step explanation:

given the number 48 increase the number by the ratio 2 :8​

Answers

Answer:

192

Step-by-step explanation:

look at the given picture

CAN ANYBODY PLSSSSSS HELP MEEE REAWARD BRAINLIEST

Answers

Answer:

Option C

1.62 and -0.62

Step-by-step explanation:

v² - v - 1 = 0

From ax² + bx + c = 0

a = 1 b = -1 c = -1

Quadratic formula

x = -b +/- √b² - 4ac

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

2a

x = -(-1) +/- √-1² - 4 x 1 x -1

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

2(1)

x = 1 +/- √1 +4

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

2

x = 1 +/- √5/2

x = 1 + √5/2 or x = 1 - √5/2

x = 1.618 or -0.618

1. What is the solution to the inequality 10x > 140? Show your work
A. X > 14
C. x > 130
B. x < 14
D x <130
I

Answers

Answer: A. X > 14

Step-by-step explanation:

1. 10x > 140. We need to eliminate that 10 so it is just X. So, we divide both numbers.

2. 10 / 10 = 1, so it just becomes x

3. Now, we divide the other side.

140 / 10 = 14

hope that helps!

Solve the equation (1/3)^x+1 = (1/9)^x+3

Answers

Answer:1

Step-by-step explanation:

Answer:

its -5,

x=-5

Don't listen to the other guy who said "1"

Step-by-step explanation:

A television costs $258.98. The sales tax rate is 8.5% . How much will. It cost to buy the television

Answers

Answer:

The cost is $280.99

Step-by-step explanation: First do 258.98 divided by 100 which will then equal 2.5898 times 8.5 equal 22.0133 which will then be rounded to 22.01 and then you add 258.98 + 22.01 and that will equal 280.99

Pennsylvania has a sales tax of 6%. The city of Philadelphia adds an extra local sales tax of 2%. Both taxes apply to the original price of an item. If the shelf price of a bottle of sports drink is $2 in Philadelphia, PA, which expressions can be used to show the total taxes you would expect to pay?

Answers

Answer:

For the regular tax in Pennsylvania, it would be 12 cents or $0.12. For Philadelphia, it would be 4 cents or $0.04. I got these two amounts by multiplying 2 times 6 or 2 percent, aka 0.06 and 0.02. If you added the two together, you would get, $0.16 or 16 cents. You would then add that to the two dollars and end up with $2.16 or two dollars and sixteen cents. I hope this helps.

Step-by-step explanation:

Decrease R1400 in the Ratio 7:3​

Answers

Answer:

Step-by-step explanation:

It's hard to tell what you mean. I'm going to assume you mean that you want what is left to be 3/7 less.

1400 - 3/7 1400 = 1400 - 600 = 800

The value of R1400 when decreased by the ratio 7:3 is  R600.

What is the value of R1400 when it is decreased?

Ratio expresses the relationship between two or more numbers. It shows the number of times that one value is contained in another value.

R1400 X 3/7 = R600

To learn more about ratios, please check: https://brainly.com/question/25927869

The graphs below were created by an advertising agency for the computer store TechPlus to show its average price on laptops and desktops compared to another computer store's prices.


Which of the following statements best explains how the advertising agency misrepresented the data?


The graphs use different scales, making it appear that the prices at TechPlus are much lower than CompStar.


The graphs were created with different colors.


The graph for CompStar makes its prices appear much higher, but its prices are only a little higher.


The graphs do not include tablet computers, so there is not enough information to compare their prices.

Answers

The misrepresentation lies in the fact that ; The graphs use different scales, making it appear that the prices at TechPlus are much lower than CompStar.

Taking a look at both graphs, it could be observed on the y - axis that the graphs do not follow the same scale.

For CompStar, the y-axis which shows the price of laptops and desktops starts it's labeling from $0 ; while TechPlus's labeling began from $600

This representation means that comparing the two graphs would give an erroneous inference as it would make the price of TechPlus appear lower than that of Complus.

Learn more : https://brainly.com/question/1370154?referrer=searchResults

3y^4+9y^3-120y^2=0 Need Answer ASAP

Answers

Answer:

y  =  0 ,  5 ,  − 8

(* ̄3 ̄)╭

[tex]3y^4+9y^3-120y^2=0\\y=0,5,8[/tex]

find the value of x. Round the length to the nearest tenth.

Answers

Answer:

Consider the given right triangle. We have to find the value of 'x'. So, the value of 'x' is 9.2 cm. Option 3 is the correct answer.

Step-by-step explanation:

What is the solution of the system of equations?
y=2x-3
5x +y = 11

Answers

Answer:

(2,1)

x=2  y=1

Step-by-step explanation:

(2,1)
Step by step answer
x=2 y=1

A triangular prism is 40 feet long and has a triangular face with a base of 24 feet and a height of 35 feet. The other two sides of the triangle are each 37 feet. What is the surface area of the triangular prism?

Answers

Answer:

4406.08 ft

Step-by-step explanation:

Which lines are parallel?

Answers

Answer:

C)?

Step-by-step explanation:

D because the slope of C is not the same and B is negative

What is the side lengths, in inches, of a cube with a volume of
1
1 cubic inch?

Answers

Answer:

1 in3 (3 is above inches)

Step-by-step explanation:

can I please have brainliest? :)

Simply the expression 6x + 1 - ( 3x -1 )

Answers

Answer:

3x+2

Step-by-step explanation:

distribute "-" into 3x-1 giving you -3x+1, combine like terms on both sides including 6x-3x and you get 3x+2

The diagonal of a rectangle is 13 units. One side of the rectangle is 12 units. Find the length of the shortest side of the rectangle.

Answers

Answer:

Diagonal of the rectangle = 13 units   c =13

side of rectangle = 12 units         a = 12

area of the rectangle = l× b

In rectangle all the corner angle is 90 degree. A diagonal of the rectangle forms two right angle.so we use Pythagoras theorem.

formula ; a²+b²=c²    a = 12 , c = 13

             12²+b² = 13²

            144 + b² = 169

            b² = 169 - 144

                =25

b   = 5 units

a  = 12 units

Step-by-step explanation:


[tex]n - 12 = 3n[/tex]
please I need help​

Answers

Answer:

n = -6

Step-by-step explanation:

n -12 = 3n

2n = -12

n = -6

Answer:

n=-6

Step-by-step explanation:

So first, you should subtract n from both sides to isolate the number -12. This will make the equation look like 2n=-12. Divide both sides by 2 because you want n to be by itself. This will give you the answer n=-6

Hope this helps

Question 4 please. I will mark brainliest!! i would at least like the equation of the graph thank you

Answers

Answer:

a. -3 < x ≤ 5

b. -3 ≤ y < 3

c.  (0, 0)

d. x = -3, x = 1, x = 5

e. -3 < x ≤ - 1, and 1 ≤ x ≤ 3,

f. (-1, -1), and (3, -3)

Step-by-step explanation:

a. The domain of a function is the set of the possible independent variable values which is -3 < x ≤ 5

b. The range of a function is the set of the possible values of the dependent variable which is -3 ≤ y < 3

c. The y-intercept is the point the graph crosses the y-axis

The y-intercept in the graph is the point (0, 0)

d. f(x) ≥ 0  when x = -3, x = 1, x = 5

f(x) ≥ 0 over the following range; -3 < x ≤ - 1.5, 0 ≤ x ≤ 1.5, 4.5 ≤ x ≤ 5

e. The intervals over which f(x) is decreasing are;

-3 < x ≤ - 1, and 1 ≤ x ≤ 3,

f. The local minimums where f(x) has the minimum values are;

(-1, -1), and (3, -3)

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