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3 years ago

I need help please and thank you.

Mathematics

1 answer:

Zinaida [17]3 years ago

7 0

Answer:

Step-by-step explanation:

The formula gives you a relation between S and n. For every n, you can perform the calculation and obtain an S.

So, for n=0 we get 0/2 (0+1) which equals 0. So (0,0) is an (n,S) pair.

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3=x/4-5. What is x? please help :)

katrin [286]

Answer

$x=32$

1/4x - 5 = 3

Add 5 on both sides

-5 + 5

5 + 3 = 8

1/4x = 8

Multiply both sides by 4.

1/4 x * 4 = x

8 * 4 = 32

So, x = 32 is the answer.

7 0

3 years ago

Jessica decides to mix grades of gasoline in her truck. She puts in 8 gallons of regular and 8 gallons of premium for a total co

Mariulka [41]

Answer:

The price of the regular gasoline is $2.46, while the premium is $2.67.

Step-by-step explanation:

Let the price of regular gasoline be "x", while the price for the premium be "y", The sum of the amount of each type of gas multiplied by its cost should be equal to the total paid, therefore:

$8*x + 8*y = 41.04$

We also know that the premium gas costs 0.21 more than the regular one, therefore:

$y = x + 0.21$

We can apply the second expression on the first, in order to solve for "x".

$8*x + 8*(x + 0.21) = 41.04\\8*x + 8*x + 1.68 = 41.04\\16*x = 41.04 - 1.68\\16*x = 39.36\\x = \frac{39.36}{16} = 2.46$

$y = 2.46 + 0.21 = 2.67$

The price of the regular gasoline is $2.46, while the premium is $2.67.

8 0

3 years ago

Find the midpoint of RS a- (-5,3) b- (3,3) c- (-1,3) d-(0,3)

DaniilM [7]

Plug it into the midpoint formula.

x1+x2/2; y1+y2/2

R (-5,4) S (3,2)

-5+3/2; 4+2/2

-2/2; 6/2

(-1,3) or "C"

I hope this helps!
~cupcake

5 0

3 years ago

Read 2 more answers

Julio is paid 1.3 times his normal hourly rate for each hour he works over 32 hours in a week. Last week he worked 36 hours and

Ostrovityanka [42]

So, I'm just going to go ahead and answer this question (Even though the question isn't quite defined):

Assuming that we want to know his usual pay, we can represent his pay with the variable 'p':

32p + 4(1.3p) = 531.96

32p + 5.2p = 531.96

37.2p = 531.96

p = 14.3

Knowing this, we can multiply his usual pay by 1.3 to find his overtime pay:

14.3 * 1.3 = 18.59

Julio's normal pay is $14.30 an hour, and his pay after 32 hours of workingis $18.59.

If this wasn't the answer you were looking for, tell me and I'll fix it.

Have a nice one!

5 0

3 years ago

A cook has 6 1/2 cups of sliced carrots how many 3/4 cup servings of carrots is this

Vikki [24]

Answer
8 2/3 cup servings of carrot.

Explanation
Divide 61/2 by 3/4

6 0

3 years ago

Read 2 more answers