James purchased 3 pounds of steak for $21. Which equation can be used to determine the cost, y, to purchase
x pounds of steak?

James Purchased 3 Pounds Of Steak For $21. Which Equation Can Be Used To Determine The Cost, Y, To Purchasex

Answers

Answer 1

Answer:

i belive its A

Step-by-step explanation:

y= 7 x or 21=7x3

y = 21 x=3

21 = 7x3

7x3=21


Related Questions

Use the discriminant to determine the number and type of solutions for the equation 2x^2−4x+7=0

(A). The equation has 2 real solutions because the discriminant is positive.
(B). The equation has 1 real solution and 1 imaginary solution because the discriminant is negative.
(C). The equation has 2 imaginary solutions because the discriminant is negative.
(D). The equation has 1 real solution because the discriminant is 0.

Answers

Answer:

it is c

Step-by-step explanation:

$9000 principal earning 5% compounded annually, after 6 yr

Answers

Answer:

the answer is

$12,130.64

I really need help on this thank you. if I don’t turn this on time I will fail math class just like how I have failed my life:(

Answers

A. Total after tax is $26.70

B. 26.70 x 1.19 = $31.773

C. 84% of 75 is 63

Once debbie arrives in each city,she'll need a backpack to carry around with her. What was the percent markup if a store bought the backpack for $25 ans somd it to debbie for $40

Answers

Answer:

60%

Step-by-step explanation:

40 / 25 - 1 = 60%

A pupil has 343 small cubes,each of a side 1 cm .He placed these cubes together to make a larger cube.
what is the length of a side of the larger cube?

Answers

Answer:

85.75 I think. not 100%

Step-by-step explanation:

Need help with math homework

Answers

what is the question you need to ask

What is the value of x in cm

Answers

Answer:

13.5

Step-by-step explanation:

look at the bottom and line it up to the top

Answer
13.5
Explanation

Human skin has a thickness of about 5 * 10-3 meter. A
grain of sand has a thickness of about 1x 10-3 meter.
About how many grains of sand would it take to match the thickness
of human skin?
Grains of Sand
Human Skin
(1 x 10-3)
(5 x 10-3)
DONE

Answers

Answer:

1.Human skin is thicker than the grain of sand.

2.It will take 5 grains of sand to match the thickness of a humans skin

Step-by-step explanation:

2x – 5 = 7 to 2x = 12 What property of equality was used?

Answers

Property of Addition and division.

My guys pls help new you got me right I’m giving brainliest:)

Answers

Answer:

21 ft

Step-by-step explanation:

HELP ASAP Solve for x. Show or explain your work.

Answers

Answer:

[tex]x=4.5[/tex]

Step-by-step explanation:

From AAA, both triangles in this figure are similar. Therefore, we can set up the following proportion:

[tex]\frac{x}{9}=\frac{x+3}{15}[/tex] or [tex]\frac{x}{9}=\frac{3}{6}[/tex].

Cross-multiplying, we get:

[tex]6x=9(3),\\6x=27,\\x=\frac{27}{6}=\fbox{$4.5$}[/tex].

(Will give Brainliest to serious answer) A glass dropper delivers liquid so that 25 drops equal 1.00 milliliters. How many drops would be required to get 0.68 liters?

Answers

Answer:

17000 drops in the bottle

PLS help me
if you get it right i will give brainliest

Answers

Given:

In a right angle triangle,

Perpendicular =  8 units

Base = x units

Hypotenuse = 17 units

To find:

The exact value of x.

Solution:

The given triangles is a right angle triangle. So, side lengths form a Pythagorean triplet.

[tex](Hypotenuse)^2=(Base)^2+(Perpendicular)^2[/tex]

[tex](17)^2=(x)^2+(8)^2[/tex]

[tex]289=x^2+64[/tex]

[tex]289-64=x^2[/tex]

[tex]225=x^2[/tex]

Taking square root on both sides.

[tex]\pm \sqrt{225}=x[/tex]

[tex]\pm 15=x[/tex]

Side cannot be negative. So, [tex]x=15[/tex].

Therefore, the required value is [tex]x=15[/tex] and yes, the side lengths form a Pythagorean triplet, i.e., (8,15,17).

solve the equation


2(h-8) - h=h - 16

A h = 8

B h= -8

C h = infinitely many solutions

D h = no solution

Answers

Answer:

2(h-8)-h=h-16

2(h-8)=h+h-16

2(h-8)=2h-16

2(h-8)=2(h-8)

h-8=h-8

h-h=8-8

0=0 so their can be infinite value of h.

hence c is correct

we can put in place of anything but answer will be zero.

Answer:

C h= infinitely many solutions

Step-by-step explanation:

when you replace h with any number it is true

say h= 3

2(3-8) - h = h-16

2(-5) - 3 = 3 - 16

-10 - 3 = -13

-13 = -13

using distributive property:

2h-16-h = h-16

combine like terms

h-16=h-16

it is the same expression on both sides of the equal sign

hope that helps!

What is the solution to the problem below?

Answers

Answer:

(1,1)/ one solution

Step-by-step explanation:

The solution is where the lines intersect.

Can you help me!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

yes

Step-by-step explanation:

by giving us a question and letting us answer it

The answer is B my guy

A compound is made up of various elements totaling 90 ounces. If the total amount of uranium in the compound weighs 18 ounces, what percent of the compound is made up of uranium? If necessary, round your answer to the nearest hundredth.

Answers

Answer:

20%

Step-by-step explanation:

The percent of the compound that is made of uranium is calculated as:

(Number of ounces of uranium /Number of ounces of the compound)

× 100

Total amount of uranium in the compound weighs = 18 ounces

A compound is made up of various elements totaling = 90 ounces.

Hence:

= 18/90 × 100

= 1800/90

= 20%

Therefore, the percent of the compound that is made up of uranium is 20%

Which set of ordered pairs contains only points that
are on the graph y = 15 – 2x?
A {(-3, 18), (0, 15), (6, 9)}
B
{(-5, 10), (-3, 6), (5, -10)}
С
{(-5, 25), (-1, 17), (8, -1)}
D {(-7, 1), (-4, 7), (2, 19)}

Answers

Answer:

a

Step-by-step explanation:

a

your answer is c !!! Look at the picture for more information.


Please mark me BRAINLEST.

i’ll give brainliest!

Brad made a graph showing how many students were absent from school every day last week.

2. how many students were absent on day3? explain how you know.

3.on which day were the greatest number of students absent? how many students were absent that day?

Answers

ANSWER:

2.) There are 5 students absent on day 3 because the dot is in the line of 5 in day 3.

3.) The 2 day is the greatest number of students absent beacause on that 2 day, 10 students were absent

I obviously know this is the answer

help please! area of rectangles and squares.

Answers

Answer:

2x squared + 25

Step-by-step explanation:

Step-by-step explanation:

area of rectangle

height×base

(2x-5)(2x-2)=

=4x^2-4x-10x+10

=4x^2-14x+10

(we get quadratic equation)

a=4 b=-14 c=10

firat find discriminant with formula:

D=b^2-4ac(-14)^2-(4×4×10)=196-160=36

now find x1 and x2 with formula:

X=(-b±√D)/2a

x1=(14+√36)/8=20/8=2.5

x2=(14-√36)/8=8/8=1

lets put values :

if we put x2 value as a base, which is 1 in given height and base, we will get 2(1)-2=0. measure of amy side can't be 0.

and if we put x2 in height, it will give us zero.

so no matter which one we put as value. we will get 0cm^2. so i think it cant be detected. im sorry if im wrong

Suppose that Omar's marginal utility for cups of coffee is constant at 1.5 utils per cup no matter how many cups he drinks. On the other hand, his marginal utility per doughnut is 10 for the first doughnut he eats, 9 for the second doughnut he eats, 8 for the third he eats, and so on (that is declining 1 unit for each additional doughnut consumed). Suppose that coffee costs $1.00 per cup and doughnuts $1.00 each, and Omar has a budget that he can spend only on doughnuts and coffee. How large would his budget need to be before he would spend a dollar on coffee?

Answers

Answer:

$6.5

Step-by-step explanation:

The marginal utility per dollar of a commodity is obtained by:

Marginal utility of coffee = 5.5

Price of coffee = $1

The marginal utility of doughnut declines by 1 per additional unit of donut consumed :

10 / 1, 9 /1..... 1/1

Therefore , before a dollar can be spent on coffee, then the marginal. Utility of coffee should be greater than doughnut.

5.5 doughnuts will be purchased, at this time marginal utility of doughnut will be 5.5/1, the 6th doughnut will have a marginal utility of 5 which is less than that of coffee.

Cost of 5.5 donuts = $5.5

Cost of coffee = $1

Total = $(5.5 + 1) = $6.5

what is 55 x 25 equaled to

Answers

Answer:

1375

Step-by-step explanation:

The product 55 x 25 equaled to 1375

What is Multiplication?

Multiplication is a method of finding the product of two or more numbers

55 x 25 is equal to 1,375.

To calculate this product, we can multiply the units digit (5) of the two numbers and write it as the units digit of the result.

Then, we multiply the tens digit (5) of 55 by 25 and add any carry-over from the previous step (0) to get the tens digit of the result.

   55

x 25

----

 1375

Hence, the product 55 x 25 equaled to 1375

To learn more on Multiplication click:

https://brainly.com/question/5992872

#SPJ5

A video game is now being sold at 22% off for a price of $31.20. What was the original price of the video game?

Answers

Answer:

$38.06

Explanation:

Multiply $31.20 by 0.22 (22%)
Which equals 6.864
Add that to $31.20 and you get 38.064
Then you round it and get $38.06

A clothing store is offering two coupons. one is for $50 off your purchase and the other is for 30% off your purchase. If the total before the discount is $195.42, Which of the coupons is best for you to use

A. $50 off because it gives a bigger discount

B. 30% off because it gives a bigger discount

Answers

Answer:

B.

Step-by-step explanation:

$195.42 - $50 = $145.42

$195.42/30% = 136.79

what is the slope intercept form x+y=-15

Answers

Answer:

y=-x-15

Step-by-step explanation:

used mathaway calculator!! probably would be useful if youre doing more question like shown. :) mark brainlest pls

To find the slope intercept form, you need to isolate y.

We need to get x on the other side of the equation.

You can do this by subtracting x from each side of the equation.

x+y-x = y

-15-x = -15-x

You get...

y = -15-x

Now you need to get the x before the -15.

So just switch them.

y = -x-15

And your done.

can someone help me find the area to this pentagon plz?

Answers

Answer:

3

Step-by-step explanation:

The answer to this is 3

What is the factored form of m^6- 64n^3?

Answers

Step-by-step explanation:

Let x = m² and y = 4n.

Then m⁶ - 64n³ = x³ - y³

= (x - y)(x² + xy + y²)

= (m² - 4n)(m⁴ + 4m²n + 16n²).

Two given angles cannot be both..


A. congruent and complementary

B. vertical and congruent

C. adjacent and congruent

D. vertical and adjacent


Please help me :(

Answers

The right answer is congruent and complementary because they both are different from each other and different causes

If vertical angles are directly opposite each other and do not share a common side, therefore, two given angles cannot be both: D. vertical and adjacent.

Recall:

If two angles are said to be vertical when both angles are directly opposite each other and are also congruent or equal in measure.

Vertical angles share a common vertex or point but do not share a common side.

Adjacent angles share a vertex and a common side.

Thus, if vertical angles are directly opposite each other and do not share a common side, therefore, two given angles cannot be both: D. vertical and adjacent.

Learn more here:

https://brainly.com/question/16303608

determine the length of AB​

Answers

Answer:

the answer is 2.

Step-by-step explanation:

How do I know this? well, those red arrows on the line show that those 2 sides (ED) and (AB) are congruent which means they are equal. therefore if they are equal and we know ED is 2, then we know AB is also 2. Hope this helped :)

Help please!!!!!!!! I need help with this ASAP!

Answers

9514 1404 393

Answer:

  2.89 m

Step-by-step explanation:

The attached shows the figure drawn accurately. It also shows that the angle of the line of sight is 102° -90° = 12° below the horizontal. The sine relation is useful in this situation.

The side opposite the angle in the triangle of interest is the difference in building heights, 5.3 -4.7 = 0.6 m. So, the useful relation is ...

  Sin = Opposite/Hypotenuse

  sin(12°) = (0.6 m)/(PR)

  PR = (0.6 m)/sin(12°) ≈ 2.886 m

  PR ≈ 2.89 m

The distance to the subject is about 2.89 meters.

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