Which expression is equivalent to this solution​

Answer:

a) 12 lb

Step-by-step explanation:

First we find the lb for the chicken

5 * $3 = $15

Then we subtract it from the total amount of money Mark has

75$ - $15 = $60

Mark has 60$ remaining to spend on salmon

60 divided by 5 = 12

So he can buy 12 lb of salmon

Answer:

c. Cluster random sample

Step-by-step explanation:

Missing word "every participant in those meetings. What type of sample is this? a. Simple random sample, b. Stratified random sample, c. Cluster random sample, d. None of the above"

In the cluster sampling, researchers will divide a certain population into smaller groups which is known as clusters, then, they randomly select among these clusters to form a sample. In cluster sample, the clusters to be included are selected at random and all members of the cluster are included.

Answer:

for 20 the answer is B

Step-by-step explanation:

Answer:

(-7/2, 3/2)

Step-by-step explanation:

picture below ;)

A line became by joining two coordinates, the midpoint of the given line segment is (-3.5,1.5).

A line segment is become by joining two points which has specific coordinates.

To find the midpoint coordinate between any two points then we have to add the x's coordinates and divide by two and similarly y's coordinates and divide by two.

For example, if you have two points as (a,b) and (c,d) then the coordinate of the midpoint joining this line will be (  [tex]\frac{a+c}{2}[/tex], [tex]\frac{b+d}{2}[/tex] ).

Since the points are  (-1,5) (-6,-2) so the midpoint joining this line segment will be

( [tex]\frac{-6-1}{2}[/tex], [tex]\frac{5-2}{2}[/tex] ) so (-3.5,1.5) will be the midpoint of the line segment.

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Answer/Step-by-step explanation:

Given:

[tex] \frac{4}{x} - \frac{3}{y} = 1 [/tex] ---› Equation 1

[tex] \frac{8}{x} + \frac{9}{y} = 7 [/tex] ---› Equation 2

Solution:

✔️Equation 1 × 3:

[tex] \frac{4}{x}*3 + \frac{3}{y}*3 = 1*3 [/tex]

[tex] \frac{12}{x} + \frac{9}{y} = 3 [/tex] ---› Equation 3.

✔️Equation 2 + Equation 3:

[tex] \frac{8}{x} + \frac{9}{y} = 7 [/tex] ---› Equation 2

[tex] \frac{12}{x} + \frac{9}{y} = 3 [/tex] ---› Equation 3.

Thus:

[tex] \frac{-4}{x} = 10 [/tex]

Cross multiply

[tex] 10x = -4 [/tex]

Divide both sides by 10

[tex] x = -\frac{4}{10} [/tex]

[tex] x = -\frac{2}{5} [/tex]

✔️Find y:

Substitute x = -2/5 into equation 1

[tex] \frac{4}{x} - \frac{3}{y} = 1 [/tex] ---› Equation 1

[tex] \frac{4}{\frac{-2}{5}} - \frac{3}{y} = 1 [/tex]

[tex] \frac{4}*{\frac{5}{-2}} - \frac{3}{y} = 1 [/tex]

[tex] -10 - \frac{3}{y} = 1 [/tex]

Add 10 to both sides

[tex] - \frac{3}{y} = 1 + 10 [/tex]

[tex] \frac{-3}{y} = 11 [/tex]

Cross multiply

[tex] 11y = -3 [/tex]

Divide both sides by 11

[tex] y = -\frac{3}{11} [/tex]

Answer:

A. Yes because it is

B. I said so

C. Only doing this for the points sorry

Step-by-step explanation:

Answer:

A. Yes, because the confidence level is 63, since 100 - 37 is 63.

B. A 90% confidence level is 10 households out of 100 that have a dog.

C. A 95% confidence level is 5 households out of 100 that have a dog.

Step-by-step explanation:

Confidence level is the total minus the confidence level.

For example, a 50% confidence level of 100 is 50, since 100 - 50 = 50.

Answer:

5 green marbles.

Step-by-step explanation:

20* 1/4 = 5

Answer: True

Step-by-step explanation:

The scale factor between shapes is the number that when multiplied by the dimensions of the original shape will give the dimensions of the transformed shape.

Likewise when the dimensions of the transformed shape is divided by this number, it will yield the dimensions of the original shape.

The original shape has a length of 36km.

= 36 * 0.5

= 18 km

This proves that 0.5 is the scale factor because when the length of the original shape was multiplied by it, the result was the length of the transformed shape.

Answer:

Test statistic Z = 1.8099

Step-by-step explanation:

Step(i):-

Given that mean of the Population (μ) = 59.1 miles/gallon

Mean of the sample (x⁻ ) = 59.5

The standard deviation of the Population = 2.89

mean of the sample (n) = 160

Step(ii):-

Test statistic

              [tex]Z = \frac{x^{-}-mean }{\frac{S.D}{\sqrt{n} } }[/tex]

              [tex]Z = \frac{59.5-59.1 }{\frac{2.89}{\sqrt{160} } }[/tex]

              Z = 1.8099

Test statistic = 1.8099

Answer:

 95  will be needed because there are 9 extra paperweights

Step-by-step explanation:

can i get brainliest plz

Answer:

Step-by-step explanation:

99 i think

Answer:

It will take her 5 minutes

Step-by-step explanation:

Answer:

idc

Step-by-step explanation:

wah

wah

There will be 13 Liamas and 34 Kangaroos in the zoo.

Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Given that a small petting zoo has Llamas and Kangaroos. There are 120 legs and 47 heads on this farm.

The equations will be formed as,

4L + 2K = 120

L + K = 47

Solve the above equations by elimination method,

4L + 2K = 120

-4L -4k = -188

____________

0  - 2K = -68

         K = 34

The number of the Lamas will  be,

L + K = 47

L = 47 - K

L = 47 - 34

L = 13

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Answer:

A and D

Step-by-step explanation:

Step-by-step explanation:

Are you sure you wrote the answers correctly?

answer: x=2.5

because i solved it on canvas

Answer:

A.5y

Step-by-step explanation:

5y = 5 x y

y= 3

5 x 3 = 15

=A.5y

Answer:

10x + 20

Step-by-step explanation:

ok 1st you know whatever you do the sides you gotta do to the side across from it so 1st easy thing is add the 2x values from the sides then your 3x+10 multiply it by 2 thats your answer then add the value up

Answer:

[tex]f(x) = 12(1.25)^{x}[/tex]

Step-by-step explanation:

The number of oak trees after x years is given by a function in the following format:

[tex]f(x) = A(1+r)^{x}[/tex]

In which A is the initial number of oak trees, and r is the growth rate, as a decimal.

A park started with 12 oak trees

This means that [tex]A = 12[/tex]

The number of oak trees increased at a rate of 25% each year.

This means that [tex]r = 0.25[/tex]

So

[tex]f(x) = A(1+r)^{x}[/tex]

[tex]f(x) = 12(1+0.25)^{x}[/tex]

[tex]f(x) = 12(1.25)^{x}[/tex]

Answer

53

Step-by-step explanation:

75-15=50+3=53

Answer/Step-by-step explanation:

Year = x

Weight (kg) = y

Rate of change between 2010 and 2011 = [tex] \frac{y_2 - y_1}{x_2 - x_1} [/tex]

Where,

[tex] (2010, 35) = (x_1, y_1) [/tex]

[tex] (2011, 30) = (x_2, y_2) [/tex]

Plug in the values

[tex] = \frac{30 - 35}{2011 - 2010} [/tex]

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

Rate of change = -5kg per year

This means that there was a decrease in the weight of the winning dog form 2010 to 2011 by 5 kilograms

Answer:

721000

Step-by-step explanation:

Answer:

it's 21000v^7x

Answer:

3.2h+1.6

Step-by-step explanation:

3h-2(-0.1h-0.8)

3h+0.2h+1.6

3.2h+1.6

Answer:

H

Step-by-step explanation:

Answer:

2^3(3x5^2+2^2) = 632

Step-by-step explanation:

i big brain

Answer:

Step-by-step explanation:

i think you answered it already??  "45 → 3 × 3 × 5 36 → 2 × 2 × 3 × 3 GCF = 3 × 3 Team Size = 9"

The largest number of players that Shana can put on each team will be equal to 9.

The four basic mathematical operations are the addition, subtraction, multiplication, and division of two or even more integers.

Among them is the examination of integers, particularly the order of actions, which is crucial for all other mathematical topics, including algebra, data organization, and geometry.

As per the given values in the question,

45 → 3 × 3 × 5

36 → 2 × 2 × 3 × 3

GCF(Greatest common factor) = 3 × 3

Team Size = 9

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Answer:

All are right except the 4th, 6th, 7th, and 8th

Step-by-step explanation:

I can explain in the comments, I don’t want you to run out of time :)