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3 years ago

PLEASE HELP!!!!!!

Mathematics

2 answers:

inna [77]3 years ago

7 0

7 1/2 is the answer . Use LCM to find

quester [9]3 years ago

6 0

B

First you have to change 2 1/2 into 5/2

To multiply fractions use the method
Keep Change Flip

5/2 x 3/1 =15/2

Which simplifies to 7 1/2

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Guys help me with this question please. Due Now

boyakko [2]

F(5) = 21
look on the table and find where x=5 on the top row, the number that is with it is 21

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x=6
look on the table and find where f(x)=7 on the bottom row, the number with it is 6

6 0

3 years ago

Mo’s farm stand sold a total of 165 pounds of apples and peaches. She sold apples for $1.75 per pound and peaches for $2.50 per

9966 [12]

Answer: 65 pounds of Peaches were sold.

Step-by-step explanation:

Let the number of pounds of Peaches sold = X pounds

Therefore the pound of apple sold = (165 - X ) pounds

Total pounds of apple and peaches sold = 165 pounds

Sale made on Peaches at the cost of $2,50 per Peache = $2.50X

sale made on apple sold at the cost of $1.75 per apple = $1.75(165 - x )

Total sale made on the sale of both Peaches and apple = $337.50

Therefore , open the bracket, add everything together and equate to the total sale made which is $337.50

we now have

2.50x + 1.75( 165 - x ) = 337.50

2.50x + 1.75 x 165 - 1.75x = 337.50

2.50x + 288.75 - 1.75x = 337.50

collect like terms

2.50x - 1.75x = 337.50 - 288.75

0.75x = 48.75

divide through by the coefficient of x which is 0.75

x = 48.75/0.75

= 65pounds .

Therefore, Mo's farm sold 65 pounds of Peaches.

Check ;

65 x 2.50 = $162.5

subtract 65 from 165 to get the pound of the appel

165 - 65 = 100 pounds of apple was sold.

now multiply 100 x 1.75

= $175

Now add the two together to give the total sale ,

$162.5 + $175 = $337.50.

4 0

3 years ago

Some researchers claim there is an association between taking vitamins and gaining weight. They took a random sample of people l

netineya [11]

Answer:

The probability that he or she has gained weight, given that he or she takes more than one vitamin per day is 0.47

Step-by-step explanation:

Has Gained Weight Has Not Gained Weight

Does not take vitamins 52 19

Takes one vitamin per day 35 49

Takes more than one vitamin per day 72 80

We are supposed to find the probability that he or she has gained weight, given that he or she takes more than one vitamin per day

A= he or she has gained weight

B=he or she takes more than one vitamin per day

$P(A|B)=\frac{P(A \cap B)}{P(B)}$

$A \cap B = 72$

B = 72+80=152

So, $P(A|B)=\frac{72}{152}=0.47$

So, Option C is true

Hence the probability that he or she has gained weight, given that he or she takes more than one vitamin per day is 0.47

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3 years ago

What is the relationship between a and b?

noname [10]

Answer:

Step-by-step explanation:

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2 years ago

-9n>-36? Solve and graph

wlad13 [49]

-9n>-36
divide both sides by -9
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