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3 years ago

6. 175 is _% of 125 7. _is 120% of 720

Mathematics

2 answers:

anastassius [24]3 years ago

8 0

Answer:

6. 140% 7. 864

Step-by-step explanation:

Step for #1:

1.) 175 ÷ 125 = 1.4

2.) 1.0=100 0.4=40

3.) 1.4 = 140%

Answer; 140%

Step for #2:

1.) 120% × 720 = ?

2.) 120 x 720 = 86,400

3.) 86,400 ÷ 100 = 864

Answer; 864

9966 [12]3 years ago

3 0

Answer:

6. 175/125=x/100

Cross products equal 125x=17500

Solve for x and you get 140%

7. 20% of 720 is 144. You need to find 120% so add the full 720 (100%) to the 144 and you get 864 (120%)

Step-by-step explanation:

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Mumz [18]

Answer:

See below.

Step-by-step explanation:

15.) -3.25

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5 0

3 years ago

1. A new brand of hot dog claims to have a lower sodium content than the leading brand.

kherson [118]

Answer:

(a) Population mean = 314.5mg

(b) Margin of error = 21.281mg

The new brand of hot dog has a lower sodium content on average than the leading brand

(d) Yes

Step-by-step explanation:

(a) Population mean = (370+326+322+297+326+289+293+264+327+331)/10 = 3145/10 = 314.5mg

(b) Margin of error = t×sd/√n

sd = 29.73, n = 10, degree of freedom = n-1 = 10-1 = 9

Assuming 95% confidence level

t-value corresponding to 9 degrees of freedom and 95% confidence level is 2.262

Margin of error = 2.262×29.73/√10 = 21.281mg

Lower limit of new brand = 314.5 - 21.281 = 293.219mg

Upper limit = 314.5 + 21.281 = 335.781mg

The range of sodium content for the new brand of hot dog is between 293.219mg and 335.781mg which is lower than the leading brand (350mg)

(d) Margin of error = t×sd/√n

From the formula above, margin of error varies inversely as the square root of sample size

The smaller the sample size (n = 10) the larger the margin of error and the less accurate is the population mean

The larger the sample size (n = 40) the smaller the margin of error and the more accurate is the population mean

8 0

3 years ago

Ayudenme porfavor en esta tarea

Elza [17]

This task simply requires the completion of the table using simple mathematical functions on the header of each column.

<h3>What are mathematical functions?</h3>

This refers to a collection of mathematical rules using mathematical operators that contain dependent and independent variables.

In this case, the rule of BODMAS comes to bear. See the full and completed table attached.

Learn more about mathematical functions at:

brainly.com/question/25638609

#SPJ1

Download xlsx

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2 years ago

Bethany sells roses and petunias. The expression 3r+2.5p gives the cost (in dollars) of r roses and p petunias.What is the cost

Stella [2.4K]

3(7) + 2.5(8)
21 + 20
41

Hope this helps!

7 0

3 years ago

Read 2 more answers

Which equation is the inverse of 5y+4= (x+3)² + 2?

Neko [114]

I think this is the answer to your question And also the solution

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2 years ago

6. 175 is ___% of 125 7. ___is 120% of 720

6. 175 is _% of 125 7. _is 120% of 720