Evaluate 5x-3y when x=7 y=1/3

Answers

Answer 1

Answer:

34

Step-by-step explanation:

(5*7)-(3*1/3) =

35-1 = 34

Answer 2

Answer:

34

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Step-by-step explanation:

Step 1: Define

5x - 3y

x = 7

y = 1/3

Step 2: Evaluate

Substitute:                    5(7) - 3(1/3)Multiply:                        35 - 1Subtract:                       34

Related Questions

Find the equation of the linear function represented by the table below in slope intercept form.

Answers

Answer:

Y=1x-7

Step-by-step explanation:

First use two points to find the slope. I used the first 2. The formula is (y1-y2)/(x1-x2). So (6-8)/(1-3)= -2/-2 = 1. Then you plug in a point and the slope for the equation y1-y2=m(x1-x2). I am using the first point and m is the slope which is 1. Y-6 = 1(x-1)

y-6 = 1x -1 then get y by itself

y=1x-7

I NEED HELP!! The amount of food a dog should eat daily is based on its weight. The picture shows the ratio of weight to cups of food.

A photo of a dog is shown. The caption shows that the dog is fifty pounds and the food dish contains two cups.

Question 1
Part A

What is the ratio of cups of dog food to the dog’s weight in pounds? Use a fraction or a colon to write the ratio

Answers

Answer:

100 llbs

Step-by-step explanation: i think

0.000032 ÷ (8 × 10-3)

4x10^-3

Answers

Answer:

Step-by-step explanation:

=0.000002x10−3

symbolab the calculator will help you with the steps and answer

Mr. Roberts had $9,512 in savings. He saved another $488. He then used all his money to buy 500 books. He sold the books for $35 each. How much did Mr. Roberts earn from selling each book? a. Mr. Roberts earned $ from selling each book. b. Travis got $20 as the answer or the amount Mr. Roberts earned from selling each book. Is his answer correct? yes no c. Tell why Travis is or is not correct.

Answers

Answer:

a. Profit from each book = $15

b. No, Travis was wrong.

c. Travis isn't correct because Mr. Roberts made $15 from the sales of each book.

Step-by-step explanation:

Given the following data;

Number of books bought = 500

Selling price = $35

Robert savings (cost price) = $9,512 + $488

Robert savings (cost price) = $10,000

Purchasing price = $10,000/500 = $20

Revenues from book sold = 500 * 35 = $17,500

Total profit = Revenues - Cost price

Total profit = $17,500 - $10,000

Total profit = $7,500

To find the amount earned from each book;

[tex] Profit \; from \; each \; book = \frac {Total \;profit}{Numbers \; of \; book} [/tex]

Substituting into the equation, we have;

[tex] Profit \; from \; each \; book = \frac {7500}{500} [/tex]

Profit from each book = $15

Therefore, Mr. Roberts earned $15 from selling each book.

Check:

Selling price = purchasing price + profit = $20 + $15 = $35

In tilton school there are

Answers

How am i supposed to know if o don’t go there?

)Kelly read 30 pages of her 300-page book in 6 hours. At this rate, how long will it take her to read the entire book? 60 hours 5 hours 6 hours 30 hours

Answers

Answer:

What would you want the answer in?

Step-by-step explanation:

Answer:

60 hours

Step-by-step explanation:

That is really slow reading

Roberto is 3 years older than Carolyn. In 7 years the sum of their ages will be 81. How old is Roberto now?

Answers

Answer: 35

the age of Roberto is x (x > 3)(x ∈ N)

because Roberto is 3 years older than Carolyn => the age of Carolyn is x - 3

in 7 years, the age of Roberto is x + 7; the age of Carolyn is x - 3 + 7 = x + 4

because  In 7 years the sum of their ages will be 81 =>

x + 7 + x + 4 = 81

⇔ 2x + 11 = 81

⇔ 2x = 70

⇔ x = 70/2 = 35

=>  the age of Roberto is 35

Step-by-step explanation:

It costs $1.08 to buy 3 green marbles. If the marbles all have the same price, how much
does it cost to buy 1 marble?

Answers

Answer:

0.36$

Step-by-step explanation:

1.03/ 3 marbles = 0.36$ per marble.

one marble is 36 cents

1.08÷3=36

In each problem, angle C is a right angle. Solve each triangle rounding answers to the nearest
tenth.

a= 7.7 ft, b= 16 ft

Answers

9514 1404 393

Answer:

  c = 17.8, A = 25.7°, B = 64.3°

Step-by-step explanation:

Side c can be found from the Pythagorean theorem:

  c = √(a² +b²)

  c = √(7.7² +16²) = √315.29

  c ≈ 17.8 . . . feet

__

The tangent relation is ...

  Tan = Opposite/Adjacent

  tan(A) = a/b = 7.7/16

  A = arctan(7.7/16)

  A ≈ 25.7°

  B = 90° -25.7°

  B = 64.3°

Please I need help badly I also have stuff on my account

Answers

Answer:

B) y = 1/5x + 12/5

Step-by-step explanation:

2 = 1/5(-2) + b

2 = -0.4 + b

2.4 = b

2.4 = 12/5

Suppose you observe a star orbiting the galactic center at a speed of 1300 km/skm/s in a circular orbit with a radius of 18 light-days. Calculate the mass of the object that the star is orbiting.

Answers

Answer: 1.1818^37 kg

Step-by-step explanation:

Given that:

Orbit speed = 1300 km/s

Radius (r) = 18 light days

Mass of object the star is orbiting :

Using the relation :

M = rv² / G

Where ; r = Radius in m ; v = velocity in m/s

G = 6.67 * 10^-11 = gravitational constant

18 light days in meters = 4.662 * 10^14 m

v = 1300km/s to m/s

v = (1300 * 1000)m /s = 1300000 m/s = 1.3 * 10^6 m/s

Hence ;

M = (4.662 * 10^14 * (1.3 * 10^6)^2 / (2/3) * 10^-10

M = (4.662 * 10^14) * (1.69 * 10^12) / (2/3) *10^-10

M = (7.87878 * 10^26) / 6.67 * 10^-11

= 1.1818^37 kg

Plzz, Helpppp!!!!!!!

Answers

the answer is B (4,9)

Jack's family needs a new microwave. There is one on sale that measures 20 inches by 14 inches by 11 inches. What is the volume of the microwave?

Answers

3080 inches
bc i did 20x14x11 on a calculator
It's 3,080.

V= L•W•H
V=20•14•11
V=20•14=280•11=3,080
V=3,080

100%
?
What percent is represented by the shaded area?
1%
Stuck? Watch a video or use a hint.

Answers

90%. Mfodndjdlhdjdndbdbdk

Would someone mind helping me? I really need this answer but I'm so confused. I would appreciate any help :) and if you get the answer right, ill give you brainliest.

Answers

Answer:

A. the slope is -2

    the y-intercept is (0,1)

Step-by-step explanation:

If y=mx+b, m is the slope and b is the y-intercept.

If we replace the variables with y=-2x+1, we can see -2 is the slope and the y-intercept is (0,1).

evaluate 9.5v + 8.9w when v=6 and w=7

Answers

Answer:119.3

Step-by-step explanation:

9.5*6=57

8.9*7=62.3

57+62.3=119.3

Is (8,2). (7,2). (6,3) a function?

Answers

Yes it is .no points over

is y=-7/9x+2 proportional or non proportional

Answers

Yes it is proportional. Graph the relationship. If the graph is a straight line having a slope that is neither zero nor infinity, the relationship between the variables is proportional. Inspect the equation to see if it has (or can be made to have) the form y = kx, or x = ky, where k is a constant. In other words, if the slope of the line is neither zero nor infinity, it is proportional.

HELP! WILL GIVE BRANLIEST!!

Answers

Answer:

About 46 pples

Step-by-step explanation:

PLEASE HELP ME 50 POINTS!!!

Explain how to simplify this expression:

(8a + 8) + (5a – 6).

Answers

8a+8+5a−6

=8a+8+5a+−6

Combine Like Terms

=8a+8+5a+−6

=(8a+5a)+(8+−6)

=13a+2

=> (8a + 8) + (5a – 6)

=> (8a + 5a) + (8 – 6) [Combine like terms]

=> (13a + 2)

What is the decimal value of the hex number ABE?

Answers

Answer:

The value of HEX ABE in decimal is 2750.

Step-by-step explanation:

Hex ABE to decimal explained:

The value of HEX ABE in decimal is 2750.

The value of HEX ABE in binary is 101010111110.

E 14 X 160 = 14

B 11 X 161 = 176

A 10 X 162 = 2560

HEX ABE = 2750

the binary value is: 101010111110

I'm not gonna put the list anymore  just look on your other questions XD

HOPE THIS HELPS!

PLEASE MARK BRAINLIEST IF THIS HELPED YOU LEARN! :)

the difference between twice a number and a number that is 5 more than it is 3. What is the number?

Answers

Answer:

4?

Step-by-step explanation:

Answer:

2n-(n+5)=3

Step-by-step explanation:

I’m dumb so can u pls help me

Answers

Answer:

(1, 6)

(2, 12)

(1.5, 9)

(2.5, 15)

#teamtrees #WAP (Water And Plant)

3)
Ross wants to know what interest rate he needs to make his $800 grow to
$1000 in 4 years.

Answers

Answer:

Why?:

The interest formula is A = P(1+r/m)^mt

A is the Amount, P is principal (initial investment), R is rate, M is times per year (not used) and T is time.

So if we want 1000 = 800(1+r)^4, we need to find R. In this case, R is about 5 percent.  (I'm not super confident, so see if you have other answers)

Which point represents 3.9?

Answers

Answer:

What do you mean there is not a graph...do you have a  picture?

Step-by-step explanation:

Answer: B

Step-by-step explanation:

A = 3.8

B = 3.9

C = 4.0

D = 4.2

You take 4.5 - 3,6 = 0.9, so each big line should be .3.

A marching has 4 rows of trumpets with 10 trumpets in each row. How many trumpets are in the marching band. Use distributive property to solve.

Answers

Answer:

4x10=40 10

Step-by-step explanation:

10 people in each row. 4 rows of people. 10+10+10+10

The rams football team Lost 18 yards on three consecutive plays they lost the same number of yards on each plate how many yards did they lose on the second play

Answers

total yards lost = 18

no. of matches = 3

given,

they lost the same number of yards on each play

yards lost on each match = 18/3 = 6

yards lost on second match = 6

Answer:

Step-by-step explanatio

A.6 yards

Which inequality is true?

Answers

Answer:

[tex]\frac{3}{4}[/tex] > [tex]\frac{2}{3}[/tex]

Step-by-step explanation:

Answer: 2. Is true

Step-by-step explanation: (second option is true)

Please help with the question in the attachment. Do not give an improper answer or you will be reported.

Answers

9514 1404 393

Answer:

  2876 books

Step-by-step explanation:

If we let y1 and y2 represent the costs from method 1 and method 2, then we have, for x books published, ...

  y1 = 12841 +24.25x

  y2 = 48072 +12x

These costs will be equal when ...

  y1 = y2

  12841 +24.25x = 48072 +12x

  12.25x = 35231 . . . . . . . . . . . . . subtract 12841+12x

  x = 2876 . . . . . . . . . . divide by 12.25

The costs will be the same for production of 2876 books.

Solve for x in the equation X^2-12x+36 = 90.

Answers

Answer:

Steno lo sebroo disculpa pero lo hice por los puntos gracias

x= 5.4 x^2-12x is ten and then 5.4*10 is 54 and 54+36=90
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