alice average mark for 4 science exams is 68%. Can alice score enough marks In a fifth exam so that her average Mark increases to 75% give reasons

Answers

Answer 1

Answer:

it is impossible she gets a 75% because as far as we know she can only score a maximum of 100 and she needs a 103

Step-by-step explanation:

We're going to assume that alice got a 68 on all 4 of her science exams

which means that so far we have[tex]\frac{68+68+68+68}{4}=68[/tex]

And we need to find out if she can get a 75 which means that we have the following

[tex]\frac{68+68+68+68+x}{5}=75[/tex]

Solve for x

272+x=375

x= 103

Therefore (unless there is extra credit available in the exam) it is impossible she gets a 75% because as far as we know she can only score a maximum of 100


Related Questions

I’m soooo sorry but can y’all plzzz help me just a couple more times!

Answers

Answer:

26/35

Step-by-step explanation:

Each fraction is increasing by 1/35. Therefore, 25/35 + 1/35 = 26/35.

Answer:

[tex]\frac{26}{35}[/tex]

Step-by-step explanation:

We have four fractions and asked to find the next fraction in the sequence.

The four fractions are increasing one by one by first glance, therefore to find the answer we need to add 1/25 to the last value seen.

What is 1 + 25?

26

[tex]\frac{26}{35}[/tex]

Question:
32 + 4/7w

w = -1/2

Answers

Answer:

31 5/7 is the answer

Plug w into the equation and then solve
32+4/7(-1/2)
=222/7 (final answer)

Describe the intersection of each plane and solid.

Answers

Answer:

triangle=3

circle=1

rectangle=2

Step-by-step explanation:

The intersection of the plane and the solid has

1. Circular cross section.

2. Rectangular cross section.

3. Triangular cross section.

1. Since the base is circular and the plane through the solid is parallel to it, the base is also round.

As a result, the intersection of the plane and the solid has a Circular cross section.

2. Since the plane through the solid is parallel to it, the side is rectangle is also round.

As a result, the intersection of the plane and the solid has a Rectangular cross section.

3. The intersection of the plane and the solid has a Triangular cross section.

Learn more about Solid and plane here"

https://brainly.com/question/1609720

#SPJ2

A shoe store buys a pair of boots from a supplier for b dollars. The store's manager decides on a markup of 35%. Write TWO expressions for the retail price of a pair of boots.

Answers

Answer:

x is the retail price

b/x 35/100 and cross multiply?

or 100b/35x

(this is the only thing i can think of)

Step-by-step explanation:

X would be the answer I hope it helps :)

a bad contains pennies, nickels, dimes, and quarters. There are 50 coins in all. Of the coins, 18% are pennies and 42% are dimes. There are 3 more nickels than pennies. How much money does the bag contain?
The bag contains $_____.... ​

Answers

Answer:

$2.64

Step-by-step explanation:

9 coins are pennies (reply to my comment if you want to know how I got it)

19 coins are dimes (reply to my comment if you want to know how I got it)

9 (pennies) + 4 = 13 (nickels)

$1.90 (dimes) + $0.09 (pennies) + $0.65 (nickels) = $2.64

Answer:
$2.64
Step-by-step explanation:
9 coins are pennies (reply to my comment if you want to know how I got it)
19 coins are dimes (reply to my comment if you want to know how I got it)
9 (pennies) + 4 = 13 (nickels)
$1.90 (dimes) + $0.09 (pennies) + $0.65 (nickels) = $2.64

A bag contains 5 purple marbles, 2 pink marbles, and 3 green marbles. Draws are made without replacement.
P(green, purple)

Answers

Step-by-step explanation:

the answer is 2/9

sorry I took to long

The answer is actually 2/10

I'm so confused, I don't know.

Answers

Answer:

the one u clicked was the answer

Evaluate the expression for d = 4, f = –3, and g = –12.

fg − d + f = ?

Answers

d= fgf+g-F

Step-by-step explanation:

F = fg f + g - d  solve the equation for d

Solve for d means we need to get 'd' alone

To get 'd' alone we need to move all the remaining terms to the other  side

F = fg f + g - d

First we subtract fgf on both sides

F - fg f = g - d

Now we subtract g on both sides

F - fg f - g = - d

now divide all the term by -1, so sign changes for all terms

-F + fgf +g = d

so d= fgf+g-F

Answer:29

Step-by-step explanation:

[-3 ✖ -12] ➖ 4 ➕ 3

♒36 ➖ 7

♒ 29.✔

I hope i helped you

please help me on this im so overwhelmed right now

Answers

he hiked 15 miles on friday
15 i believe
Hopefully it’s good :)

What is the perimeter of this? I am soooooooooo confused. Also, this is Algebra.

Answers

Answer:

[tex]P=3x+2[/tex]

Step-by-step explanation:

Answer:

The perimeter would be 3x+2

Step-by-step explanation:

You have to add each side up because there is no rule of x you can't solve further.

PLEASE HELP ME WITH THIS

Answers

Answer:

y=14

Step-by-step explanation:

42-28=14

Answer:

I think 14 is the answer..

help pls "What might happen at the cellular level of the plant if there was no water available for photosynthesis (don't just say the plant will die; be specific!)?"

Answers

Answer:

Step-by-step explanation:

The plant wouldn't be able to generate any energy (glucose)

Write an explanation of how to subtract two linear expressions.

Answers

Change subtraction to addition

hello there I need help! no rush! 938-(87+301 )

Answers

550 is the answer to the math problem

Olivia Stout
5 of 6Items














Yolanda created a scatter plot of the relationship between the number of times she visited different friends each month, y, and the distance in miles each friend lives from her home, x. She calculated the equation of the trend line to be y=−3.5x+20. Use this information to predict the number of times in one month Yolanda would visit a friend who lives 4 miles from her home

Answers

Answer:Step-by-step explanation:

Simplify each product.
–3c(8 + 2c)


A. -24c - 6c^2

B. -24c + 6c^2

C. -24c - 6c

D. -24c + 6c

Answers

Answer:

Its A

Step-by-step explanation:

It’s A -24c-6c^2 please give me Brainlist me I hope this helps

Please help me with the question on the bottom one please

Answers

13!!!
Because 21+3=24
So you will need to subtract 24-11

Answer:

13 = y

Step-by-step explanation:

21 + 3 = y + 11

(21+3=24)

24 = y + 11

-11          -11

13 = y

Show all work and use complete sentences to answer the following question.



The graph shows the calories burned for hiking and downhill skiing.



Find the slope of each line. Interpret each slope.

I NEED HELP-

Answers

Answer:

skiing- 8/1

hiking- 6/1

Step-by-step explanation:

if you have any more questions then comment on this post

skiing slope is 8
hiking slope is 6

What is the lest commen denomnator of 1/2 2/3 and 3/4
A. 48
B. 24
C. 16
D. 12

Answers

Answer:

D. 12

(Hope this helps! Btw, I am the first to answer.)

Answer:

12

Step-by-step explanation:

Car leases generally allow only a certain number of miles to be driven. Myung’s lease included a charge of 25 cents per mile for all miles above 12,000 per year. If Myung had a 3-year lease and was charged $1,640 at the end of the lease, how many miles had she driven during the 3 years?

Answers

Answer:

36,000

Step-by-step explanation:

if you multiply 12,000 and 3 you get 36,000.

At the IGA, a 5 lb bag of apples costs $5.85. What is the unit rate for the 5 lb bag?

Answers

The unit rate for 5 lb bag is 1.75 lb
1.17. to change the 5 into a 1, you would divide by 5. since you did it to the 5, you also have to do it to the 5.85. so it’s 5.i5 divided by 5

helpppppppppppppppppppppppp

Answers

Answer:

1.

Step-by-step explanation:

The answer is 9.25h - 7.50

Martin has four comic books and four novels. He wants to choose one comic book and one novel randomly. How many outcomes are in this sample space?

Answers

10 outcomes are in space

Answer:

10 outcomes. that is the answer to your question.

Pls help due in 15 mins

Answers

1) y = 8 x = 7.5
2) y = 3 x = 12
Y is 8 x is 7.5 for number one
Number two is y is 3 x is 12

Choose the set of measurements listed in order from least to greatest.
A. 5 g, 5 g, 5 mg
B. 5 g, 5 mg, 5 kg
C. 5 mg, 5 g, 5 kg
D. 5 mg, 5 kg, 5 g

Answers

Answer:

5mg, 5g,5kg.........................

C. 5 mg, 5 g, 5 kg.

PLEASE HELP ME ON THE BOTTOM PART PLEASE

Answers

Answer: If I am correct it should be.. 65

Step-by-step explanation:

For ellieb6437
and
Wolfgirl

LETS GOOOO

My question: How do you win a board game w/ your siblings? lol

Answers

Answer:

you Cheat  and out smart them

Step-by-step explanation:

Answer:

cheat

Step-by-step explanation:

makes the most sense

A company produces fruity drinks that contain a percentage of real fruit juice. Drink A contains 25% real fruit juice and Drink B contains 20% real fruit juice. Company made 280 liters of fruity drinks with 61 liters of real fruit juice. Write a system of equations that could be used to determine the number of liters of Drink A made and the number of liters of Drink B made. Define the variables that you use to write the system.

Answers

Answer:

x = amount of real fruit juice used to make Drink A

y = amount of real fruit juice used to make Drink B

Step-by-step explanation:

Let

x = amount of real fruit juice used to make Drink A

y = amount of real fruit juice used to make Drink B

1. The company used 100.5 liters of real fruit juice, then

2. Drink A:

x = amount of real fruit juice used

percentage of real fruit juice

Then

5x = amount of drink A produced

Drink B:

y = amount of real fruit juice used

percentage of real fruit juice

Then

amount of drink B produced

The company makes 30 more liters of Drink A than liters of Drink B, so

The system of two equations i

Answer:

A =  liters of drink A at 10% real fruit juice

B = liters of drink B at 30% real fruit juice

A + B = 360

0.1*A + .3*B = 78 liters

Step-by-step explanation:

A =  liters of drink A at 10% real fruit juice

B = liters of drink B at 30% real fruit juice

A + B = 360

0.1*A + .3*B = 78 liters

Then you can solve.

A = 360 - B

36 - 0.1B + 0.3 B = 78

0.2B = 42

B = 210 liters

A = 150 liters

i hope this helps!

please help me on the question on the bottom

Answers

Answer: 4

Step -by-step :
7+7+7=21
5+12+a=
17+a
21-17=4
The answer is 4. Hope this helps you!

The cost to rent a boat can be modeled by the equation C = 18h + 35 where C is the total cost in dollars and h is the number of hours in which the boat is rented.

What is the rate of change?

Answers

Answer:

18

Step-by-step explanation:

Slope, rate of change, unit rate, speed are synonyms

y = mx + b

Slope "m" is a rate of change.

~~~~~~~~~~

C = 18h + 35

m = 18

The rate of change from the given equation is 18 dollars per hour

Given :

The cost to rent a boat can be modeled by the equation C = 18h + 35

Where h is the number of hours and 'C' is the total cost

Rate of change represents the cost to rent a boat for one hour .

From the given equation , [tex]C=18h+35[/tex]

35 is the initial cost and 18 is the cost to rent a boat every hour

The rate of change is cost to rent a boat for one hour that is our slope.

Slope is 18

The rate of change is 18 dollars per hour

Learn more :  brainly.com/question/15976923

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