Evaluate 7x−y if x = 9 and y = 3.


12


13


60


76

Answers

Answer 1

[tex]7x - y[/tex]

Insert values for [tex]x[/tex] and [tex]y[/tex]

[tex]7 \cdot 9 - 3 = 63 - 3 = 60[/tex]


Related Questions

3s – 12 = -21
Solve for s

Answers

Answer:

S= -3

Step-by-step explanation:

3s-12=-21

3s= -21+12

3s= -9

s= -9/3

s= -3

Answer:

s = -3

Step-by-step explanation:

[tex]3s - 12 = - 21[/tex]

Collect like terms

[tex]3s = - 21 + 12[/tex]

Add the numbers :

[tex] - 21 + 12 = - 9 \\ \\ 3s = - 9[/tex]

Divide both sides of the equation by 3

[tex] \frac{3s}{3} = \frac{ - 9}{3} [/tex]

Simplify

[tex]s = - 3[/tex]

2x = 8
X - 3 = 5
5x + 2 = 12
7x + 4 = 25
3x + 1 = 5x – 13
3 (2x + 1) = 2x + 11
3 (2x - 6) = 2 (2x- 1)
2 (x + 3) - 3(2x - 5) =x​

Answers

Step-by-step explanation:

2x=8

x=8÷2

x=4

x=5+3

×=8

I think you wrote the answer and the final step is x=4

Which of the following is equivalent to 15.45 + ( − 98.25 ) 15.45+(-98.25)

Answers

Answer:

-82.8

Step-by-step explanation:

15.45 + ( − 98.25)

15.45 - 98.25

= -82.8

Since the two terms are of opposite signs, you have to subtract and use the sign of the greater term (positive or negative)

Solve the equation 1/4(x+2)+5=-x

Answers

Answer: Exact Form:

x=−225

Decimal Form:

x=−4.4

Mixed Number Form:

x=−4/25

Step-by-step explanation:

c=200x+1,600

solve for x

Answers

Answer:

[tex] \huge \: \orange { \boxed{x = \frac{c}{200} - 8 }}[/tex]

Step-by-step explanation:

[tex] \huge \: c = 200x + 1600 \\ \\ \huge \:c - 1600 = 200x \\ \\ \huge \:\frac{c - 1600}{200} = x \\ \\ \huge \: \frac{c}{200} - \frac{1600}{200} = x \\ \\ \huge \:\frac{c}{200} - 8 = x \\ \\ \huge \: \red{ \boxed{x = \frac{c}{200} - 8 }}[/tex]

Point L is on line segment km. Given km =5x+10, LM=4x, and KL=3x, determine the numerical length of kL

Answers

Answer:

KM= KL+LM

5x+10=3x+4x

5x+10=7x

2x=10

x=5

now

kl=3x=3*5=15

2. Select all ratios that are equivalent to 3:18.
21:126
6:36
1:6
1:18
15
21

Answers

Answer:

21:126

6:36

1:6

Step-by-step explanation:

What part of 15 is 10?

Answers

Answer:

2/3

Step-by-step explanation:

10/15=2/3

The 10 is 2/3 part of 15 by dividing common factor that is 5.

What is simplest form ?

In mathematics, the simplest form is the fraction that has the smallest equivalent value.

Here, the given fraction is :

10/15 which when converting to smallest equivalent value by dividing common factor that is 5 :

10/15 = 2/3

Therefore, the 10 is 2/3 part of 15.

Learn more about fractions on:

brainly.com/question/78672

#SPJ2

If m∠1= (7x –19)°, and m∠2 = (x + 5)°, find m∠2.

Answers

Given :

m1 = ( 7x - 19 )° .

m2 = ( x + 5 )° .

To Find :

The value of x .

Solution :

Since , relation between angle m1 and m2 is not given .

Let , us assume that sum of m1 and m2 is 180° .

So ,

[tex](7x-19)+(x+5)=180^{\circ}\\\\8x-14=180\\\\8x=194\\\\x=24.25^{o}[/tex]

Angle m2 = (24.25  + 5 )° = 29.25° .

Therefore , m2 = 29.25° .

Hence , this is the required solution .

Answer:

Given :

∠m1 = ( 7x - 19 )° .

∠m2 = ( x + 5 )° .

To Find :

The value of x .

Solution :

Since , relation between angle ∠m1 and ∠m2 is not given .

Let , us assume that sum of ∠m1 and ∠m2 is 180° .

So ,

Angle ∠m2 = (24.25  + 5 )° = 29.25° .

Therefore , ∠m2 = 29.25° .

Hence , this is the required solution .

Step-by-step explanation:

can ratios be thought of as fractions?

Answers

Yes
We can
Hence it’s true!
Totally it could be proper or improper fractions to

State the horizontal asymptote of the rational function.
f(x) = quantity x plus nine divided by quantity x squared plus four x plus two

Answers

Answer:

there is no meme

Step-by-step explanation:

1) Simplify x3 x4 using the product of powers property.
Les

Answers

Answer:

Step-by-step explanation

[tex]a^{m} * a^{n} = a^{m+n}\\\\x^{3}*x^{4} = x^{3+4} = x^{7}[/tex]

In product of powers, if base is same, just add the powers

The region between the graphs of X = y2 and X = 5y is rotated around the line y=5. The volume of the resulting solid is_________.

Answers

Answer and Step-by-step explanation:

The volume of the resulting solid is shown below:-

The lines in for

y can be y = sqrt(x) using square root

and y = x ÷ 5

In this, the intersect is done when sqrt(x) = x ÷ 5  using square root

Now

x = x^2 ÷ 25

x = 0

or

x = 25

so outermost is x ÷ 5 innermost is sqrt(x)  using square root

Therefore A is

= integral of pi ( (x ÷ 5-5)^2 - (sqrt(x)-5)^2)  using square root

from 0 to 25

= 625 pi ÷ 6

10. Use Structure What could be a first step to
solving the equation 3x + -0.5(x + 3) + 4 = 14?
Explain.

Answers

First distribute -0.5 to x and 3 giving you the new equation 3x + -0.5x-1.5

I need help with part 2 please

Answers

Answer:

$65

Step-by-step explanation:

So we already determined that the total cost C to drive m miles is:

[tex]C=0.25m+40[/tex]

And we want to find the total cost of driving 100 miles.

So, substitute 100 for m and solve for C:

[tex]C=0.25(100)+40[/tex]

Multiply:

[tex]C=25+40[/tex]

Add:

[tex]C=\$ 65[/tex]

Therefore, it will cost $65 to drive 100 miles.

Solve the equation, 5- 2y = –8

Answers

Answer:

Step-by-step explanation:

5 - 2y = - 8

Subtract 5 from both sides

-2y = - 8 - 5

-2y = - 13  

Divide by - 2

-2y/-2 = - 13/-2

y = 6 1/2 or 6.5

Which is bigger 6.8" or 6.52"

Answers

Answer:

6.8 is bigger than 6.52

6.8 is bigger than 6.52

Solve and graph -4<-1-4x<-1

Answers

Answer:

x<3/4 and x>0

for graphs, refer to the images attached.

Step-by-step explanation:

-1-4x > -4 AND -1-4x <-1

-1-4x >-4-4x > -3x < 3/4

-1-4x<-1-4x<0x>0

please help me im confused​

Answers

Answer:

it a d) option i.e d) AAS test

make me as brilliest and follow me....m

Jeff bought 10 cookies and ate 4 of them. He ate ____% of the cookies. (Make sure to enter the answer using numbers only. Do not enter special characters such as the percent symbol.)

Answers

Answer:

40 percent

Step-by-step explanation:

4/10=40/100=40 percent

he ate 40% of the cookies. you would set this up by putting 4 (the # of cookies that he ate) on top of 10 (the total # of cookies.) by doing this, just divide 4 by 10, which equals .40. move the decimal two places to the right, which will give you a final answer of 40%

which equation is equivalent to the given expression

[tex]x {}^{2} - 6x = 8[/tex]
A.
[tex](x - 3) {}^{2} = 17[/tex]
B.
[tex](x - 6) {}^{2} = 20[/tex]
C.
[tex](x - 3) {}^{2} = 14[/tex]
D.
[tex](x - 6) {}^{2} = 44[/tex]

Answers

Answer:

[tex](x - 3)^{2} = 17[/tex]

Step-by-step explanation:

[tex] {x}^{2} - 6x = 8 \\ {x}^{2} - 6x + 9 = 8 + 9 \\ (x - 3)^{2} = 17[/tex]

Which is the correct option?(attached)

Answers

Answer:

I believe it's D

Step-by-step explanation:

The answer would be d

To address a falling GDP, a government may:

A. raise interest rates to allow businesses to borrow more money.

B. reduce the amount of money it puts into circulation.

C. invest in programs in order to help people in need.

D. lower interest rates to allow businesses to borrow more money.​

Answers

Answer: D. Lower interest rates to allow businesses to borrow more money

Step-by-step explanation:

just took the test

To address a falling GDP, a government may lower interest rates to allow businesses to borrow more money.​ The correct option is A.

What is GDP?

Real GDP (short for real GDP) is a macroeconomic measure of the value of economic output adjusted for price changes. This adjustment transforms the money-value measure, nominal GDP, into an index for the quantity of total output.

It is computed using the prices of a given base year. To calculate Real GDP, you must first determine how much GDP has been changed by inflation since the base year and then divide that amount by the number of years.

A government may lower interest rates to allow businesses to borrow more money in order to address a falling GDP.

To know more about GDP follow

https://brainly.com/question/1383956

#SPJ5

Help please this is math

Answers

irrational and intergers

I NEED HELP ANSWER ASAP. I NEED SOMEONE WHO CAN I HELP ME WITH MY OTHER QUESTIONS

Answers

Answer:

3,0

Step-by-step explanation:

hopefully this helps you

pls mark brainlest if it is correct

Are All integers are in the set of real numbers.

Answers

if ur asking are all integers real number then yes they are. real number are anything u can put on a number line. things such as square roots or pie are NOT real number or “Rational”

scientific notation

Answers

Answer:

1.45

Step-by-step explanation:

not sure but trying to help :)

What is the solution of the equation 16-17+ Vb=1?
b = 3
O b = 9
O b = 81
no solution

Answers

B=3 is the correct answer

6.4n-1.2+3n+8.2=19.22

What number would make the statement true

Answers

Answer:

Step-by-step explanation:

6.4n - 1.2 + 3n + 8.2 = 19.22

So we can separate the variable side on the left, and the whole numbers on the right.

6.4n + 3n = 19.22 - 8.2 + 1.2

which gives us,

9.4n = 12.22

n = 1.3

Which of the following trinomials could represent the product (x + m)(x + n) if m = 5 and n = -7? A x2 + 2x - 35 B x2 - 12x - 35 Cx2 + 35x + 2 D x2 - 2x - 35

Answers

Hey there! I'm happy to help!

Let's plug in these values.

(x+5)(x-7)

We use the FOIL method to multiply the two.

We multiply the Firsts.

x·x=x²

We multiply the Outsides.

-7·x=-7x

We multiply the Insides.

5·x=5x

And we multiply the Lasts.

-7·5=-35

We combine these all.

x²-7x+5x-35

x²-2x-35

Have a wonderful day! :D

Other Questions
Name this angle in three different ways Given f(x) = |x| and g(x) = 2x-3. Solve for (f g)(x) Twelve more than x is greater than fourteen Name three properties that can be observed in a substance. 17. Identify the explicit formula for the arithmetic sequence 12, 14, 16, 18, . . . . options: A) f(n) = 12 + 2(n 1) B) f(n) = 12 + 2(n + 1) C) f(n) = 2 + 12(n + 1) D) f(n) = 2 + 12(n 1) Select the statements that were true of the Jamestown colony.It was founded to make a profit for the London Company.It was built on the Savannah River.The colonists arrived in May of 1584.The first winter over 50 settlers died of starvation and exposure.Many men did not act wisely when they first arrived. The Supreme Court case Gibbons v. Ogden was related toThe power to establish a national bank is? If construction costs are $160,000 per kilometer, find the cost of building the new road in the figureshown to the rightnew road10,000 m24,000 mThe cost of building the new road is s(Round to the nearest dollar as needed) Can you give me an easy definition for vastly Why is American democracy so open to the influence of interest groups? If you want to know your speed going from point A to point B, whatinformation do you need to know?* Based on Raffel's introduction, what aspects of the poem do you think led tohis lifelong interest in Beowulf? The midpoint of AB is M=(-2, 1). One endpoint is A=(-8, 7).Find the coordinates of the other endpoint, B.PLEASE HELP ME create a short story about Motivation was my task i need help to find something to be the motive How many at-bats did the player have? I need help on this assignment how many tens and ones are in the number 15 Morris borrowed $6 from his mother. so far, he has repaid $4. if debt is represented as a negative number, what number sentence shows the amount of jack's remaining dept.? andrea is three times older than eliza. suzie is 4 years older then eliza. if eliza's age can be represented by x, create an expression that represents the combined age of all three girls YOU DO:1) A 15.0 gram sample of sodium hydrogen carbonate, NaHCO3, was contaminated with an impurity. In orderto determine the purity of the sample, it was heated to decompose the material according to the followingreaction:2NaHCO3 Na2CO3 + H2O + CO2If 6.35 grams of sodium carbonate, Na2CO3, were recovered, what percentage (by mass) of the sample wassodium hydrogen carbonate, NaHCO3?I