Hi can someone please help

Answer:

Donuts are $4 and Muffins are $6

Step-by-step explanation:

Start by setting up both equations:

6d+3m=42

3d+2m=24

Then multiply the second equation by -2:

-6d-4m=-48

Then subtract the second equation by the first:

6d+3m=42

-6d-4m=-48

The sixes will cancel out and you'll have the equation:

-m=-6 or m=6

This tells you that each muffin is $6

Then you want to plug in six for m in one of the original equations:

3d+2(6)=24

Then solve for d:

3d+12=24

3d=12

d=4

This tells you that each dount is $4

Answer:

i think 7 but i am not 100% sure

Step-by-step explanation:

Answer: you have to add

Step-by-step explanation:

3.18+1.45+2.72 = 7.35

Answer:

1.) 3  

2.) 11

3.)17

Step-by-step explanation:

you would want to add them up then multiply

Answer:

M<1=55

M<2=55

M<3= 70

Step-by-step explanation:

Angle 1 and 2 are equal

Answer:

io kd ffg ioo HD dd g.j i OP on BBC Dee e homegirl theismann

Answer:

-49

Step-by-step explanation:

You subtract 348 from 299 and you get -49 which means she is in debt

Answer:

the anwser is

postive 5

Answer:

C/ 350 minus d

Step-by-step explanation:

i did the quiz

Answer:

c

Step-by-step explanation:

edg 2021

Answer:

-52

Step-by-step explanation:

plug 2 into u(x) which is equal to

2(5) + 1= 5

plug 5 into w(x) which is equal to

-2(5^2) - 2

-2(25) - 2

-50 - 2 = -52

Answer:

a

Step-by-step explanation:

Answer:

$-12.50

Step-by-step explanation:

Take -2.50 and multiply it by 5 to get the answer.

Answer:

C.) A' (-5,3), B' (-1,3), C' (4,-3)

Step-by-step explanation:

Translation rule: (x, y + 2)

A (-5,-5) -> A' (-5, -5 + 2) -> A' (-5, -3)

B (-1,1) -> B' (-1, 1 + 2) -> B' (-1, 3)

C (4,-5) -> C' (4, -5 + 2) -> C' (4, -3)

Answer:

The length of s is 5.1 inches to the nearest tenth of an inch

Step-by-step explanation:

In Δ RST

∵ t is the opposite side to ∠T

∵ r is the opposite side to ∠R

∵ s is the opposite side to ∠S

→ To find s let us use the cosine rule

∴ s² = t² + r² - 2 × t × r × cos∠S

∵ t = 4.1 inches, r = 7.1 inches, and m∠S = 45°

→ Substitute them in the rule above

∴ s² = (4.1)² + (7.1)² - 2 × 4.1 × 7.1 × cos(45°)

∴ s² = 16.81 + 50.41 - 41.1677568

∴ s² = 26.0522432

→ Take √ for both sides

∴ s = 5.10413981

→ Round it to the nearest tenth

∴ s = 5.1 inches

∴ The length of s is 5.1 inches to the nearest tenth of an inch

Answer:

5.1

Step-by-step explanation:

delta math

Answer; put the question again l cant see it

Step-by-step explanation:

Answer:

The 90% confidence interval is  [tex]0.1316 <  p <  0.1812[/tex]

Step-by-step explanation:

From the question we are told that

   The sample size is  n  =  582

   The number of teenagers at the wheel is k = 91

Generally the sample proportion is mathematically represented as

          [tex]\^ p = \frac{k}{n}[/tex]

=>       [tex]\^ p = \frac{91}{582}[/tex]

=>      [tex]\^ p = 0.1564[/tex]

From the question we are told the confidence level is  90% , hence the level of significance is    

      [tex]\alpha = (100 - 90 ) \%[/tex]

=>   [tex]\alpha = 0.10[/tex]

Generally from the normal distribution table the critical value  of  [tex]\frac{\alpha }{2}[/tex] is  

   [tex]Z_{\frac{\alpha }{2} } =  1.645[/tex]

Generally the margin of error is mathematically represented as  

     [tex]E =  Z_{\frac{\alpha }{2} } * \sqrt{\frac{\^ p (1- \^ p)}{n} } [/tex]

=>  [tex]E =  1.645 * \sqrt{\frac{0.1564  (1- 0.1564)}{582} } [/tex]

=>  [tex]E =  0.0248 [/tex]

Generally 95% confidence interval is mathematically represented as  

      [tex]\^ p -E <  p <  \^ p +E[/tex]

=>   [tex]0.1564  -0.0248 <  p <  0.1564  + 0.0248[/tex]

=>   [tex]0.1316 <  p <  0.1812[/tex]

Answer:

Step-by-step explanation:

Given

sigma notation of 3 + 7 + 11 + 15 + 19​

Solution

Sigma notation=

Sigma

Answer:

Upper deck = $38

Goal View = $63

Sidelines = $88

Step-by-step explanation:

Represent

- Sidelines with S

- Goal-view with G

- Upper-deck with U

We have that:

[tex]S = 25 + G[/tex]

[tex]S = 50 + U[/tex]

[tex]G = 2U - 13[/tex]

Required

Solve for S, G and U

Substitute 25 + G for S in the second equation

[tex]25 + G = 50 + U[/tex]

Make G the subject

[tex]G = 50 -25+ U[/tex]

[tex]G = 25+ U[/tex]

Substitute 25 + U for G in the third equation

[tex]25 + U = 2U - 13[/tex]

Collect Like Terms

[tex]U - 2U = -13 - 25[/tex]

[tex]-U = -38[/tex]

[tex]U = 38[/tex]

Substitute 38 for U in [tex]G = 25+ U[/tex]

[tex]G = 25 + 38[/tex]

[tex]G =63[/tex]

Substitute 63 for G in [tex]S = 25 + G[/tex]

[tex]S = 25 + 63[/tex]

[tex]S = 88[/tex]

Complete Question

Suppose a particular brand of energy bars has come up with a new recipe. They want to know how many energy bars they need to test for calorie content in order to be 94% confident that the sample mean will be within 3 calories of the true mean? Suppose there is a population standard deviation of 20 calories

Answer:

The value is  [tex]n =157 [/tex]  

Step-by-step explanation:

From the question we are told that

The margin of error is  [tex]E = 3[/tex]

  The standard deviation is  [tex]\sigma = 20[/tex]

From the question we are told the confidence level is  94% , hence the level of significance is    

      [tex]\alpha = (100 - 94 ) \%[/tex]

=>   [tex]\alpha = 0.06[/tex] \

Generally from the normal distribution table the critical value  of  [tex]\frac{\alpha }{2}[/tex] is  

    [tex]Z_{\frac{\alpha }{2} } =  1.881[/tex]

Generally the sample size is mathematically represented as  

   [tex]n = [\frac{Z_{\frac{\alpha }{2} } *  \sigma }{E} ] ^2[/tex]

=>  [tex]n = [\frac{1.881 } *  20 }{3} ] ^2[/tex]  

=>  [tex]n =157 [/tex]  

Answer:

116°

Step-by-step explanation:

3x-4+9x+17+6x-31=180

18x-18=180

+18 +18

18x=198

18x/18=198/18

x=11

a=9x+17

a=9(11)+17

a=99+17

a=116°

hopefully this helps :)

Angle A : 116°

The sum of all the angles in the triangle is 180°

∠A+∠B+∠C=180°

[tex]\tt 9x+17+3x-4+6x-31=180\\\\18x-18=180\\\\18x=198\\\\x=11\\\\A=9.11+17=116^0[/tex]

Answer:

25 yards

Step-by-step explanation:

radius is half of what the diameter is.

50 / 2 = 25

Answer:

radius is 25

Step-by-step explanation:

hope this helps

if so please mark brainlist

thx

Answer:

63/4 or 15 3/4 miles each day

Step-by-step explanation:

Answer:15.75

Step-by-step explanation:63/4 = 15.75

Answer:

60 houses.

Step-by-step explanation:

160 divided by 8 = 20

Multiply 20 by 3 and you get 60

Answer:

1125$

Step-by-step explanation:

225 x 5 (because he only works 5 days a week)

Answer:

The value of the discriminant tells you whether the quadratic has 2 solutions, 1 solution, or no real solutions. If b2 – 4ac simplifies into a positive number, then the quadratic has 2 solutions. If b2 – 4ac simplifies into a 0, then the quadratic has 1 solution.

Step-by-step explanation:

Answer:

WARNING! THE PERSON ABOVE ME IS WRONG!

A is incorrect, it does NOT decrease, it goes in a parabola.

This makes (D) the correct answer.

The expected yield of a crop is low whenever the number of seeds planted per square foot is small or large. A larger yield is expected when the number of seeds per square is around 60.​

D.The expected yield of a crop is low whenever the number of seeds planted per square foot is small or large.

A larger yield is expected when the number of seeds per square is around 60.​

A scatter plot is a particular kind of plot or mathematical diagram that displays values for typically two variables for a collection of data.

It uses Cartesian coordinates. A second variable can be shown if the points are coded.

Here x coordinate represents the no. of seeds planted per square foot and the y coordinate represents crop yield per square foot.

If we observe the given scatterplot we see that before and after 60 seeds planted per square foot crop yield decreases.

∴ Every time there are few or many seeds planted per square foot, the crops predicted yield is poor. When there are about 60 seeds per square, a greater yield is anticipated.

learn more about scatterplot here :

https://brainly.com/question/25280625

#SPJ2

Answer:

12+12=24 1/2 a dozen=6, 12+12+6=30 pencils

Step-by-step explanation:

hope this helps lol have a good day