What is the value of the expression 3x-8y when x=10 and y=2?

Answers

Answer 1

Answer:

14

Step-by-step explanation:

3x-8y

(3*10)-(8*2)

30-16

14

Answer 2

Answer:

30-16

Step-by-step explanation:


Related Questions

Given f(x) = 6(1 - x), what is the value of f(-8)?

Answers

Answer:

6(1-(-8)= 54

Step-by-step explanation:

Plug negative 8 in for x and solve the equation

what is the nearest tenth to the square root of 46

PLEASE HELP

Answers

Answer:

6.8

Step-by-step explanation:

This is the answer because:

1) The square root of 46 is 6.78232998...

2) The nearest tenth of this is 6.8 because we have to round 7. Since 8 is greater than 5, we have to round 7 up.

Therefore, the answer is 6.8

Hope this helps! :D

Pls respond fast I’m tired lol I can’t figure it out

Answers

Answer:

62°

Step-by-step explanation:

∠IKD=∠EIB=∠GJI =118°                     (Corresponding angles)

∠GJI+∠AJG=180°                 (Linear Pair)

∴∠AJG= 180°-118°

            =62°

Please help!! Prove AD is parallel to BC

Answers

Answer:

parallel lines are coplanar straight lines that do not intersect at any point. Lines AD and BC have no intersection.

Answer:

Correct me if I'm wrong!!!

What is the value of x . 3x+8+6x-4

Answers

Answer:

9x+4

Step-by-step explanation:

3x+6x is 9x

8-4 is 4

9x+4

if you are solving for x, you do 9/9 and 4/9

approximately .44 repeated

I got 9x + 4

EXPLANATION:

Combine Like Terms:

3x+8 + 6x+- 4
=(3x+6x) + (8+-4)
=9x + 4

HOPE THIS HELPED!!

PLS HURRY I WILL GIVE BRAINLIEST
Part A: Write an algebraic expression for 6 more than 7 times a number. (5 points)

Part B: Write a verbal expression for 3(n + 8). (5 points)

Answers

Part A

Let the number be n.

answer:

7n + 6

Part B

8 more than a number is multiplied by 3

Answer:

PART A: 8x7(+6)

Step-by-step explanation:

PART B: Expand 3(n + 8)

Step 1: Multiply (3) * (n + 8)

Step 1.1: Multiply 3 by each term in n + 8

Step 1.1.1: Multiply 3 * n

Group constants and powers by variable

(3 * 1)(n1)

3n

Step 1.1.2: Multiply 3 * 8

Group constants and powers by variable

(3 * 8)

24

Step 1 answer = 3n + 24

Group all like terms

3n + 24

table shows pairs of coordinates. Plot these in the coordinate plane. Be sure to label the axes.

Answers

Answer:

I'm not sure how I can show you because you have to plot the points, not give a straight answer but I'll give you an idea.

Step-by-step explanation:

POINT 1: For the first point you are going to find 4 on the X axis and go up by 3. Plot your point there

POINT 2: Find the number 2 on the X axis and go up by 6

BTW keep in mind that the X axis is the the horizontal line that divides the coordinate plane half. If you folllow my intrustions for the first 2 points, you'll get an idea of how to grph the 3rd point!

Hope this helps!

A printing machine printed 1764 pages in 6 minutes.
A) How many pages did it print in 4 minutes?
B) How many pages would it print in 9 minutes?
C) Write an equation to represent this situation.

Answers

Step-by-step explanation:

no of pages printed in 6 min = 1764

no. of pages printed in 1 min = 1764/6

= 294

a) no. of pages printed in 4 min = 294×4

= 1076

b) no. of pages printed in 9 min = 294×9

= 2646

I don't know for c) part

sorry for that.....

hope it would help you.....

NEED ASAP!
Which number below comes first when the numbers are listed from least to greatest?
1/6
-4
square root of 2
-6/5
3.5

Answers

Answer:

-4

Step-by-step explanation:

1/6, the square root of 2, and 3.5 are all positive so it is between -6/5 and -4. -6/5 is equal to -1 and 1/5 which is closer to zero than -4. Hope this makes sense!

What is the area of the triangle abc?

Answers

Answer:

Your answer is 35!

Step-by-step explanation:

I'm sure of it!

lea has dimes and nickels that total to $5.50. there are a total of 75 coins. how many are dimes?

Answers

THERE ARE 50 DIMES

Let d be the number of dimes and n be the number of nickels. Then (because there are 75 coins), d + n = 75

Also, you can figure out the value of the money you have by multiplying the number of dimes by 0.10 and multiplying the number of nickels by 0.05. That means 0.10d + 0.05n = 6.25

This gives you 2 equations with the 2 unknowns (d and n). You can solve this in several ways, including substitution and elimination. I'll go with substitution because that's usually the first method taught.

If d + n = 75, then d = 75 - n (subtract "n" from both sides of the equation). Now since "d" is the same as "75 - n" you can plug into the second equation "75 - n" wherever you see "d". That gives you:

0.10(75 - n) + 0.05n = 6.25

7.5 - 0.10n + 0.05n = 6.25 (distributing to eliminate the parenthesis)

7.5 - 0.05n = 6.25 (combining like terms)

-0.05n = -1.25 (subtracting 7.5 from both sides)

n = 25 (dividing both sides by -0.05)
So there are 25 nickels.

Since d + n = 75, you can plug 25 in for n to get:

d + 25 = 75

d = 50 (subtracting 25 from both sides)

So there are 50 dimes

A mixture of purple paint contains 6 teaspoons of red paint and 15 teaspoons of blue paint. To make the same shade of purple paint using 35 teaspoons of blue paint, how much red paint would you need?

Answers

14 would be the answer. (6 x 35)/15 =14

Write the decimal as a fraction or mixed number in simplest form.
5.22​

Answers

Answer:

5 11/50

Step-by-step explanation:

i used an online calculator and thats what it said

Answer:

5 2/9

Step-by-step explanation:

What is the value of the expression 10z-3 when z=4?

Answers

Answer:

37

Step-by-step explanation:

10 x 4 - 3

40 - 3

   37

Answer:

37

Step-by-step explanation:

10*4-3=40-3,which equals 37

if 10x = 40 million, then what is x

Answers

Answer:

× = 4,000,000

Step-by-step explanation:

40 Million = 40,000,000

40,000,000 ÷ 10

=

4,000,000

Checking:

4,000,000 × 10 = 40,000,000/ 40 Million

When dividing by zero, all you do is remove a zero or move the decimal place to the left.

what is negative 2 and 2/3 as a decimal​

Answers

Hi friend! Hope you find this response helpful! :)

0.66666667

the answer is actually -3!

you would take 2/3 and make it a division problem (2÷3). meaning, -2 + (2÷3). then, we get -2 + 1 = -3.
hope this helps!

-15/8 + 1/4 = ??????

Answers

Answer:2 1/8 pls give me brainliest

Step-by-step explanation:first step is to change the 1/4 to 2/8. Then add and simplify.

Write the following ratios in its simplest form 56:112:28

Answers

Answer:

2 : 4 : 1

Step-by-step explanation:

First take common factors by factorization.

56 = 14 x 4 = 28 x 2

112 = 14 x 8 = 28 x 4

28 = 14 x 2 = 28 x 1

Remove the 28 common factor.

Therefore,

56 : 112 : 28

= 2 : 4 : 1

What is the range of y = –3sin(x) – 4? all real numbers Negative 7 less-than-or-equal-to y less-than-or-equal-to 7 all real numbers Negative 7 less-than-or-equal-to y less-than-or-equal-to negative 1 all real numbers Negative 5 less-than-or-equal-to y less-than-or-equal-to 3 all real numbers Negative 1 less-than-or-equal-to y less-than-or-equal-to 1.

Answers

Range of a function is the extent to which any function may be varied. The range of the given function y= -3sin(x)-4 is [-7,-1].

What is a Range?

The range of a function is the extent to which any function may be varied.

We know that the general range of the function of sin(x) is between [-1,1].

-1 ≤ sin(x) ≤ 1. . . . . . . . . .(A)

As our required function is y = -3sin(x) - 4

Now, in order to get this function, we will multiply each side in Equation (A) by -3, therefore,

-3 ≤ -3 sin(x) ≤ 3

Further, subtract from 4 from each side of the equation.

-7 ≥ -3sin(x)-4 ≥ -1

Hence, the range of the given function y= -3sin(x)-4 is [-7,-1].

Learn more about Range:

https://brainly.com/question/8041076

Answer: b

Step-by-step explanation:all real numbers (b)

Jill just got her pilot’s license and wants to rent a plane. The Platinum Plane Company charges $180 plus $92 per hour to rent a plane. The Plastic Plane Company charges $250 plus $78 per hour. For what number of hours would the companies charge the same amount?

Answers

Answer:

5

Step-by-step explanation:

solve equation 180+92x= 250+78x

Explain how to write an equation from a table in slope intercept form.

Answers

Answer:

the answer for this is y=mx+b

Answer:

The table gives you three points that are on the line:

(-5, -7), (0, -5), (3, -3)

use any two of them to find the slope.

What is the difference
-2 - 8 =

Answers

Answer:

-10

Step-by-step explanation:

-2 - 8 = -10

I hope this helps!

Answer:

-10

Step-by-step explanation:

To find the answer to -2 - 8, we have to remember that when you subtract numbers, they go towards the negatives. So, since it is -2 - 8, you basically just add together the numbers but keep the negative sign, so the answer would be:

-2 - 8 = -10

Hope this helps :)

I can’t move on till I answer please help

Answers

Answer:

Step-by-step explanation:

Given the x-intercepts at -1 and 5, that means y=0 at x=-1 and x=5.

So (x+1) and (x-5) are root for the parabola.

y = (x+1)*(x-5)

That is the quadratic equation for Question B.

Back to A, the x-coordinate of vertex of this parabola is at x=2.

This is because the parabola is symmetrical at its vertex so the vertex must be at the mid-point between its x-intercepts, x=(-1+5)/2=2.

12 is 30% of ____
(Please explain)

Answers

Answer:

40

Step-by-step explanation:

In word problems, the word "of" usually means multiply.  Thus, for example, 10% of $50 is $5.  This is because we can write 10% as 0.10 or as 10/100 (which is 1/10) and then multiply:    (1/10)(50) = 5

So, we often see equations like:

    R = (1/2)D        meaning R is 50% of D, or R is half of D

Let x = the number we want to find

This problem says:

 "12 is 30%       of    what number?"

  12 = (30/100) *        x

12 = (3/10)x

(10/3)12 = x             [multiply both sides by (10/3)]

    40 = x        

Checking (very important):      

 Is   12 = (3/10)(40)    ?

       12 = (3)(4)    ?

       12 = 12     ? yes

Answer:

40

Step-by-step explanation:

Let x = unknown number

30% = 30/100 = 0.3

If 12 is 30% of x, then

   30% of x is 12

⇒ 0.3x = 12

⇒ x = 12 ÷ 0.3

⇒ x = 40

Or, you can divide 12 by 3 to get 10% and then multiply this by 10 to get 100%:

12 ÷ 3 = 4 (so 4 is 10%)

4 × 10 = 40 (which is 100%)

Determine the value of the variable in the simplified expressions
What is the value of x in this simplified expression?
(-3)?
(-3)*
X
What is the value of y in this simplified expression?
1
K+m
-10
+
1
10
kym
y =

Answers

Answer:

x = 7

y = 5

Step-by-step explanation:

When the exponent is negative in the numerator, putting it into the denominator makes it positive.

When the exponent is negative in the denominator, putting it into the numerator makes it positive.

The first terms of a geometric sequence are as follows.
-810,-270,-90
Find the next two terms of this sequence.
Give exact values (not decimal approximations)

Answers

The fourth and fifth term of this sequence is -30 and -10 respectively.

Data;

first term (a) = -810common difference (r) = ?

Common Difference

The common difference in a geometric progression is the ratio between two successive terms.

Let's find the common difference in this sequence

[tex]r = \frac{-270}{-810} \\r = \frac{1}{3}[/tex]

The nth term of a geometric sequence is given as

[tex]T_n = ar^n^-^1\\[/tex]

The next two terms of this sequence will be 4th and 5th term.

The fourth term of this sequence is

[tex]T_4 = ar^4^-^1\\T_4 = -810 * (\frac{1}{3})^3\\ T_4 = -810 * \frac{1}{27}\\ T_4 = -30[/tex]

The fifth term of this sequence is

[tex]T_5 = ar^5^-^1\\T_5 = -810 * (\frac{1}{3})^4\\T_5 = -810 * \frac{1}{81} \\T_5 = -10[/tex]

The fourth and fifth term of this sequence is -30 and -10 respectively.

Learn more on geometric progression here;

https://brainly.com/question/12006112

If you are buying at item at a store for a price of $45, and there is a 8.8% tax added on top, what would be the total amount due at the register, to the nearest cent?

Answers

Answer:

$48.96

Step-by-step explanation:

Convert percent to decimal:

8.8%=8.8/100=0.088

Percent formula:

a(1+r)

45(1+0.088)

45(1.088)

48.96

Total Amount Paid:

48.96

How many kilograms of water must be added to 2. 5 g of methanol (CH30H) to make a 3. 0 m solution?

Answers

Answer:

Given: 150ml of 2.0M CH

3

OH is to be prepared.

Number of moles= M×Volume inL=2.0×0.150=0.3

Molar mass of CH

3

OH=32.04g/mol

∴ Weight of CH

3

OH to be added= 32.04×0.3=9.61g

Step-by-step explanation:

HURYYYYY BRAINLIEST
The ordered pairs in the table lie in the graph of the linear function whose equation is
y = 3x + 2.

Which ordered pair does not lie on the graph of this function?
A. (10, 32)
B. (8, 13)
C. (–5, –13)
D. (–8, –22)

Answers

y = 3x + 2 = 3 * x + 2

point (10 ; 32) on the line ?

so here we can read : x = 10 and y = 32

if x = 10

then y has to be = 3 * 10 + 2 = 30 + 2 = 32

so yes - on the line

same reasoning for the rest

The ordered pairs which does not lie on the graph of the function are (8,13).

What is function?

Function is relationship between two or more variables expressed in equal to form. In a function each value of x must have corresponding value of y.

The value which we put in the function is domain of the function and the value which we will get is known as codomain of the function.

How to find ordered pairs?

We have been given a function y=3x+2 and we have to find the ordered pairs which does not lie on graph of function. The ordered pairs which lie on the graph must satisfy the function and the ordered pairs which does not lie on the graph must not satisfy the function.

First ordered pair is (10,32)

32=3*10+2

32=30+2

32=32

It lies on graph.

Second ordered pair is (8,13)

12=3*8+2

12=24+2

12≠26

So it does not lie on graph of function y=3x+2.

Hence the ordered pair which does not lie on the graph of function y=3x+2 is (8,13).

Learn more about function at https://brainly.com/question/10439235

#SPJ2

-3.5y - 6.2y = - 87.3

Answers

Answer:

the answer is 9

Step-by-step explanation:

-3.5y - 6.2y = - 87.3

or, -9.7y = -87.3

or, y = -87.3/-9.7

or, y = 9.

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