When Jamel went to the store, he spent $7 on 2.5 pounds of hamburger meat. What are two different ways to express the rate in this situation?

Answer:

The domain is the set of x -coordinates, {0,1,2} , and the range is the set of y -coordinates, {7,8,9,10} . Note that the domain elements 1 and 2 are associated with more than one range elements, so this is not a function.

Step-by-step explanation:

this is an example

Answer:

[tex] - \frac {1}{2} [/tex]

Step-by-step explanation:

Slope of the line

[tex] = \frac{4 - 2}{5 - 9} \\ \\ = \frac{2}{ - 4} \\ \\ = - \frac{1}{2} [/tex]

Answer:

24m-28

Step-by-step explanation:

I hope this helps!

answer:

the simplified version of this is: 24m-28

Answer:

2

Step-by-step explanation:

First off, the slope of f(x) is -4.  It is in the form y=mx+b and m=-4.

For g(x), the slope can be calculated from any two points given.  I willuse (1,9) and (3,21) because I like positive numbers.  So, slope is rise over run and it is calculated from (y1-y0)/(x1-x0)  This gives me (21-9)/(3-1) which is equal to 6.  So adding the two slopes: 6+ (-4)=2

Answer:

Choice C, 761 m

Step-by-step explanation:

let horizontal distance be x

in the right triangle, cos= adj/hyp

cos(18)=x/800

x=cos(18)×800= 760.845≈ 761

Answer: 3t+4q.

Step-by-step explanation: Triangles have 3 sides, so there will be 3 sides for each triangle in the envelope. This is represented by 3t. Quadrilaterals have 4 sides, so there will be 4 sides for each quadrilateral in the envelope. This is represented by 4q. The total number of sides will be the number of triangle sides and the number of quadrilateral sides together.

Answer:

The margin of error will be "0.65". A further explanation is provided below.

Step-by-step explanation:

The given values are:

n = 343

x = 110

At 99% confidence level,

[tex]\alpha = 1-99[/tex]%

  [tex]=1-0.99[/tex]

  [tex]=0.01[/tex]

then,

[tex]\frac{\alpha}{2} =\frac{0.01}{2}[/tex]

  [tex]=0.005[/tex]

or,

[tex]Z_{\frac{\alpha}{2} }=Z_{0.005}[/tex]

     [tex]=2.576[/tex]

Now,

The point estimate will be:

⇒  [tex]\hat{P}=\frac{x}{n}[/tex]

⇒      [tex]=\frac{110}{343}[/tex]

⇒      [tex]=0.321[/tex]

or,

⇒  [tex]1-\hat{P}=1-0.321[/tex]

⇒            [tex]=0.679[/tex]

The margin of error will be:

⇒  [tex]E=Z_{\frac{\alpha}{2} }\times \sqrt (\frac{(\hat{P}\times (1 - \hat{P})) }{n} )[/tex]

On substituting the above values, we get

⇒      [tex]=2.576\times \sqrt{\frac{0.321\times 0.679}{343} }[/tex]

⇒      [tex]=2.576\times \sqrt{\frac{0.217959}{343} }[/tex]

⇒      [tex]=0.065[/tex]

hence,

⇒  [tex]\hat{P}-E<p<\hat{P}+E[/tex]

⇒  [tex]0.321-0.065<p<0.321+0.065[/tex]

⇒  [tex]0.256,0.386[/tex]

Answer:

★ Given :

Cost of 50 chickens and 30 ducks = $ 550

Cost of 44 chickens and 36 ducks = $ 532

★ To find :

Cost of chicken and duck

★ Solution :

Assume :

Cost of chicken = x

Cost of duck = y

According to question :

50x + 30y = 550 ......(1)

44x + 36y = 532......(2)

1) - (2)

(50x + 30y) - (44x + 36y) = 550 - 532

50x + 30y - 44x - 36y = 18

6x - 6y = 18

6(x - y) = 18

x - y = 18/6

→ x - y = 3 ....(3)

In equation 1 ,

50 x + 30y = 550

taking 10 common

10(5x + 3y) = 550

5x + 3y = 550/10

5x + 3y = 55

by taking 3 common

3(5/3 x + y) = 55

by dividing 3 on both sides

5/3x + y = 55/3 .....(4)

(3) + (4)

x - y + 5/3 x + y = 3 + 55/3

x + 5/3 x = 64/3

8/3 x = 64/3

by multiplying 3 on both sides

8x = 64

x = 64/8

→ x = 8

→ Cost of chicken = $ 8 ..

by putting value of x in equation 3

x - y = 3

8 - y = 3

y = 8 - 3

→ y = 5

→ Cost of ducks = $5..

Step-by-step explanation:

mrk me brainliest plz

Answer:

-12/13

Step-by-step explanation:

Given,

-8/13+(-4/13)

=-8/13-4/13

=-12/13

Answer:

1)   30 in²

2)   60 in²

Step-by-step explanation:

a = (1/2)bh

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

h = 4

b = 15

a = 1/2 * 4 * 15

a = 30 in²

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

h = 8

b = 15

a = 1/2 * 8 * 15

a = 60 in²

Answer:

[tex]7x^{3}[/tex]

Step-by-step explanation:

Find the prime factor of each term to find the GCF. 7 is the GCF of both 21 and 28.

Answer:

jadas practice time is 168 minutes or 2 hours 48 minutes.  Diegos practice time is 235 minutes or 3 hours 55minutes hope this helps! have a nice day and good luck with your test!

Step-by-step explanation:

Answer:

12m

Step-by-step explanation:

its similar triangles the opposite is always 2times the side.

Answer:

40.4

Step-by-step explanation:

I used a calculator

Answer:

Hello! answer: 7

Heres an image to explain I hope this helps you!

Answer:

i belive th answer is 58

Step-by-step explanation:

so you have 3 right angles so thais 90 x 90x90

Answer:

Consecutive angles of a parallelogram are congruent.

Answer:

3x-2

Step-by-step explanation:

(-7x+6)-(-10x+8)

open the parenthesis

-7x+6+10x-8

combine like terms

3x-2

Answer:

hope it helps

stay safe healthy and happy.

Answer:

13t² + 2t + 9

Step-by-step explanation:

(9t² - 3t + 5) - (-4t² + 5t + 4)

Solving like terms

-(-4t²) becomes + 4t²

(9t² + 4t²) + (-3t + 5t) + (5+4) =

13t² + 2t + 9

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Answer:

f(1) = 42

Step-by-step explanation:

Step 1: Switch all x out to 1 for f(1) which would look like this: f(1)=4(1)^2+3(1)+13

Step 2: You would then simplify it starting with 4(1)^2 which would equal 4 squared which equals 16.

Step 3: After simplifying you would have f(1)=16+3+13

Step 4: You then just add and get 42

Hope this helped :D

Answer:

60

Step-by-step explanation:

If  Isabelle sells 150 out of 250 ears of corn. Then the percentage of the ears of corn she sold will be 60%.

The amount of something is expressed as if it is a part of the total which is a hundred. The ratio can be expressed as a fraction of 100. The word percent means per 100. It is represented by the symbol ‘%’.

Every morning she starts with 250 ears of corn.

On Saturday, Isabelle sells 150 out of 250 ears of corn.

Then the percentage of the ears of corn she sold will be

[tex]\rm P = \dfrac{150}{250} \times 100\\\\P = 15 \times 4\\\\P = 60 \%[/tex]

More about the percentage link is given below.

https://brainly.com/question/8011401

#SPJ2

Answer:

A)

Step-by-step explanation:

The starting balance is $35

after one game purchase, the balance is 35-1.75=33.25

after two game purchases, the balance is 35-(1.75*2)=31.50

Answer:

A.... X=3

Step-by-step explanation:

Answer:1/3

Step-by-step explanation:

He gave away 2/6 of the erasers. You can simplify that by doing 2 divided by 2 6 divided by 2 which makes it 1/3. Daniel gave away 1/3 of the erasers.

Answer:

1/3

Step-by-step explanation:

he gave one to p.j=1/6

he gave one to Ken=1/6

1/6 +1/6=2/6=1/3

Answer:

The final answer is 0

Step-by-step explanation:

1/3 + 2/3 = 1 which means Ravi and Hasan ate the whole thing

Can I have brainliest? It would help me out, if not thanks anyways! Hope this helped and have a nice day!

Answer: b

Step-by-step explanation:

I can't see the question

Answer: look down below

Step-by-step explanation:

BEFORE

91+87+100+88+95+91=552

552\6=92

Median=92

the 6 is how much data points we have

AFTER

91+87+100+88+95+91+98+100+88+86=924

924/10=92.4

the 10 represnts how many data points we have now

MEDIAN=92.4

the median will be increased by 0.4

Answer:

65.5

Step-by-step explanation:

Using the relation :

Xbar ± Margin of error

Margin of Error = Zcritical * s/√n

The Zcritical value at 95% = 1.96

Hence,

Margin of Error = 1.96 * 2.5/√60

Margin of Error = 1.96 * 0.3227486

Margin of Error = 0.6326

Lower boundary = 65.5 - 0.6326 = 64.867

Upper boundary = 65.5 + 0.6326 = 66.133

(64.867 + 66.133) / 2