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Anna007 [38]
3 years ago
6

9 students volunteer for a committee. How many different 2-person committees can be chosen?

Mathematics
2 answers:
asambeis [7]3 years ago
7 0
It is definitely going to be 72

MariettaO [177]3 years ago
6 0
The answer is 72, since for the first person, we have 9 choices.  The second choice, we have 8 choices.  Therefore, the answer is 8 times 9, which is 72.
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15 is what percent of 40?<br><br> Pls Show Work<br><br> Thx
Free_Kalibri [48]
15 = rate * 40
rate = 15/40
rate = 0.375 * 100% = 37.5%
4 0
3 years ago
Read 2 more answers
Help with this question, please!
Katyanochek1 [597]

The diet will include <u>123.75 </u>daily grams of protein

<h3>Further explanation</h3>

One variable linear equation is an equation that has a variable and the exponent number is one.  

Can be stated in the form:  

\large{\boxed{\bold{ax=b}}

or  

ax + b = c, where a, b, and c are constants, x is a variable  

We complete the task :

A nutritionist planning a diet for a football player wants him to consume 3,500 Calories and 725 grams of food daily. Calories from fat and protein will be 45% of the total Calories. There are 4, 4, and 9 Calories per gram for protein, carbohydrates, and fat, respectively. How many daily grams of protein will the diet include?

  • 243.75
  • 481.25
  • 123.75
  • 120

Calories from fat and protein will be 45% (0.45) of the total Calories

Calories from fat and protein = 0.45 x 3500 = 1575 calories

Calories from carbohydrates = 3500 - 1575 = 1925 calories

So mass for carbohydrates = 1925 : 4(4 calories/gram) = 481.25 grams

Then mass for fat and protein = 725 - 481.25 = 243.75 grams

We can make equation for fat and protein

1. 4 calories. mass of protein(p) + 9 calories . mass of fat(f) = 1575 calories

2. mass of protein(p) + mass of fat(f) = 243.75

we can simplify :

1. 4p+9f = 1575

2. p + f = 243.75 ⇒ f = 243.75 - p

we substitute equation 2 into equation 1 :

4p + 9(243.75-p) = 1575

4p + 2193.75-9p=1575

-5p = -618.75

p = 123.75

<h3>Learn more</h3>

linear equation

brainly.com/question/99841

Keywords : one variable, linear equation ,diet, nutritionist,calories, fat, proteins, carbohydrates, daily grams

#LearnWithBrainly

6 0
3 years ago
Given that R = 4 x + 8 y Find y when x = 4 and R = 32
victus00 [196]

R = 4 x + 8y [ Given ]

when ,

x = 4 and R = 32

★ Substituting the values

=> 32 = 4 × 4 + 8y

=> 32 = 16 + 8y

=> 8y = 32 - 16

=> 8y = 16

=> y = 8/16

=> y = 2

7 0
3 years ago
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jennifer is shopping with her mother they pay $2 per pound for tomatoes at the vegetable stand. find the constant of proportiona
Tresset [83]
One the first problem on finding the constant of <span> proportionality in this situation the answer is 2. Below is the solution:

constant = unit rate
unit rate = $2/ poung 
K = 2

For the second question, the equation is the below:

T = 2p or y = 2x</span>
3 0
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2)) There are 32 1/5 calories in<br> a candy bar. How many calories<br> are there in 33 candy bars?
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If 1 candy bar is 32 1/5 then you would multiply 32 1/5 x 33 =1062.6
≈ 1063 calories
6 0
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