I just took a science test and got a 80% on the test. CBA's are 50% of our grade and I had a 98% in science class. How much will my grade drop?, what will my new grade be?​

Answers

Answer 1

Answer:

89%

Step-by-step explanation:

Answer 2

Answer:

Grade drops 9 percentage points.

New overall grade is 89%

Step-by-step explanation:

The test with a score of 80% accounts for 50% of the grade.

The current average of 98% accounts for the other 50% of the grade.

50% of 80% + 50% of 98% =

= 40% + 49%

= 89%

The new overall grade is 89%.

Since the previous overall grade, before the test, was 98%,

and 98% - 89% = 9%, then

the new grade is 9 percentage points lower than the previous overall grade.


Related Questions


PLEASE HELP
Given 28-6x=2x-84 prove x=14.

Answers

Answer:

-56

Step-by-step explanation:

substitute x with 14 in the equation and both answers will be -56

28-6x = 2x -84

Add 6x to both sides:

28 = 8x -84

Add 84 to both sides

112 = 8x

Divide both sides by 8

X = 112/8

X = 14

The perimeter of the triangle below is 4x + 3y. Find the measure
of the missing side.

Answers

Answer:

2x + 3y

Step-by-step explanation:

first you add the two known sides: (x-y)+(x+y) = 2x

Then you subtract the answer (2x) from the total perimiter (4x+3y) :

4x+3y-2x = (4x - 2x) + 3y = 2x + 3y

Any natural number and “0” means?

Answers

Answer:

Whole numbers

Step-by-step explanation:

Since natural numbers are any whole number excluding zero.

Answer:

This really confuses me, but it should be a whole number. I mean, right?

¿que número multiplicado por -53 da como resultado 5883?​

Answers

Answer: 76.701 x 76.701 ≈ 5883

Step-by-step explanation: Estoy seguro de que eso es todo

Hi I was a little confused on dilation can anyone help me (will mark Brainly)

Answers

Just divide the distance of each to point P by 2.

C would be 1 unit above and 2 units to the right of P.

D would be 1 unit below and 2 units to the right of P.

And so on...

Hope this helps

Solve for x.

7x=2x−35


x = 7

x = 5

x=−5​

x=−7

Answers

subtract 2x from both sides you will get 5x=-35 than divid both sides by 5 then u will get x=-7


A convenience store requires that Ayumi spend $4 or more if she wants to pay using a debit card. Donuts cost $0.80 each. A
bottle of orange Juice costs $1.20. Ayumi payed for 1 orange juice and d number of donuts. Write the equation that represent
the situation.

Answers

Answer

1.20+0.80d ≥ 4.00 is the equation. If you are trying to solve for the minimum of donuts she needs to buy so it is over $4.00, then it is 4

Step-by-step explanation:

So in the problem we know she already has bought one bottle of orange juice and needs to buy a certain amount of donuts but we know they are each 0.80 so that will become 0.80d. The 1.20 + 0.80d have to be greater than or equal to 4.00 so she can pay with the debit card and that is why we put the ≥ symbol.

Answer:

.80 × 4 =$3.20

orange juice is $1.20

d =.80×4 +1.20

d=$4.40

Jenny is making tie dyed shirts for her class with her school colors, blue and yellow she used a total of 8 ounces of fabric paint the amount of blue paint is 3 times the amount of yellow make a diagram to show the ratio of blue to yellow paint

Answers

Answer:

The ratio of blue paint to yellow paint is 3:1

Step-by-step explanation:

Let

x -----> the amount of blue paint in ounces

y ----> the amount of yellow paint in ounces

we know that

x+y=8 -----> equation A

x=3y -----> equation B

Solve the system by substitution

Substitute equation B in equation A

3y + y = 8

4y = 8

y = 2

Find the value of x

x = 3(2) = 6

therefore

The amount of blue paint is 6 ounces and the amount of yellow paint is 2 ounces

Find the ratio

To find out the ratio of blue paint to yellow paint, divide the amount of blue paint by the amount of yellow paint

x/y = 6/2 = 3/1

That means -----> Of every 4 parts of paint, three parts are blue and one part is yellow.

the question is Reasoning Determine whether each statement is true or false for f (x) = |x|,
and explain your answer.

Answers

2. False -3 is not in the range of the function because the absolute value bars limit the y value to 0 and above

3. True any function like this with the x value in absolute value bars will always be identical on the opposite side of the y-axis

this applies to anything like: y=|x|, y=2|x|, y=|2x+2| and y=|x|+2

Is -59 - -38 positive or negative?

Answers

Answer:

negitive

Step-by-step explanation:

Answer: -21 so Negative

Hope this helps!

-4x<20
X<-5
Describe the error that she made

What the answer

Answers

Answer:

your supposed to flip the sign for the less than or greater than sighs when dividing by a negative.

Step-by-step explanation:

-4x←20

x→-5


Ivan rented a truck for one day. There was a base fee of $16.95, and there was an additional charge of 89 cents for each mile driven. Ivan had to pay $155.79
when he returned the truck. For how many miles did he drive the truck?

Answers

Answer:

156 miles

Step-by-step explanation:

155.79-16.95=138.84

138.84/0.89=156

(7TH GRADE MATH) Based on her recipe, Elena knows that 5 servings of granola have 1,750 calories.
Wrote an equation to represent the relationship between the number of calories and the number of servings of granola. (think y=kx)

Answers

Answer:

under y is 700 im guessing under the two would be like 1/2 i dont know k

so a machine makes 80 copies in 2 1/2 min how many copies does it make in 0.25 min

Answers

Find copies per minute:

80 / 2.5 = 32 copies per minute.

Multiply copies per minute by total minutes:

32 x 0.25 = 8 copies

a grocery storr buys items and then applies a markup of 70%. Find the markup if the original cost was 10$

Answers

Answer:

7

Step-by-step explanation:

70/10=7

6000 divided by 30 simplified what is it

Answers

Answer:

200

Step-by-step explanation:

6,000 divided by 30 is 200

Answer:

200

Step-by-step explanation:

6000 / 30

= 600 / 3

= 200

Lily has
x
x nickels and
y
y dimes. She has no less than 15 coins worth a maximum of $1 combined. Solve this system of inequalities graphically and determine one possible solution.

Answers

Answer:

Y would = 34

Step-by-step explanation:

that's what i got on edge and it was right

pls help real quick its two questions

Answers

Answer:

hiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

Step-by-step explanation:

Answer:

Mhm mhm that's right

Step-by-step explanation:

Hope this helps lolllll

The prices for different lengths of ribbon sold at a fabric store are shown in the table.

Which statement BEST justifies whether or not the relationship between the length and price represents a function?

A.
This relationship does not represent a function because it relates inches and dollars.
B.
This relationship represents a function because no length of ribbon has more than one price.
C.
This relationship represents a function because the price per inch decreases as the length of ribbon increases.
D.
This relationship does not represent a function because the prices of different lengths of ribbon are all different.

Answers

Answer:

B. This relationship represents a function because no length of ribbon has more than one price.

Step-by-step explanation:

A relation is considered as a function when there is exactly just one possible range value that any of the domain value can give. In order words, each domain value of a function cannot have more than one range value.

In the given table of values representing the length and price of ribbon, the domain includes all the set of lengths of the ribbon while the range is the set of the corresponding prices the lengths can cost.

Thus, each length given has exactly just one price. No particular length has more than one price. Therefore, we can consider this as a function.

Tammy buys a 4-gigabyte memory card for her camera. Dijonea buys a memory card with twice as much storage as Tammy’s. One gigabyte is 1,024 megabytes. How many megabytes of storage does Dijonea have on her memory card?

Answers

Answer:

Dijonea have 8192  megabytes on her memory card

Step-by-step explanation:

Capacity of Tammy's memory card =  4-gigabyte

given that Dijonea buys a memory card with twice as much storage as Tammy’s

Thus,

Capacity of Dijonea's memory card =  2*Capacity of Tammy's memory card

Capacity of Dijonea's memory card =  2*4-gigabyte = 8-gigabyte

Given that

1 gigabyte = 1,024 megabytes

we have to find value of 8 gigabyte in terms of megabytes

for that we multiple both side in above equation by 8

1 *8 gigabyte = 1,024 *8 megabytes

8 gigabyte = 8192  megabytes

Thus, Dijonea have 8192  megabytes on her memory card

solve the equation. check your solution 6(4-z)=2z​

Answers

Answer:

3

Step-by-step explanation:

6(4 - z) =2z

24 - 6z =2z

24 =2z +6z

24 =8z

z=24 :8

z=3

Answer:

z=3

Step-by-step explanation:

6(4-z)=2z

24-6z=2z

24=2z+6z

24=8z

z=3

A local pizza shop has a membership program for frequent buyers. The membership costs $10 per month and members get a discounted price of $1.75 per slice of pizza. Autumn purchased a membership to this pizza shop.What would be the monthly cost for xx slices of pizza?

Answers

Answer:

Monthly cost = $10 + $1.75x

Step-by-step explanation:

Given the following :

Membership cost = $10 per month

Discounted price for members = $1.75 per slice of pizza

If Autum purchased the membership, the monthly cost for x slices of pizza

Monthly cost of x slices will be :

Membership cost + (discounted price * number of slices)

Monthly cost = $10 + ($1.75 * x)

Monthly cost = $10 + $1.75x

Peter attempted to use the divide-center method to find the line of best fit on a scatterplot.

What was his mistake?

He had a different number of points to the left of the vertical line than to the right of the vertical line.

He had a different number of points above the line of best fit than below the line of best fit.

Answers

Answer:

He had a different number of points above the line of best fit than below the line of best fit.

Step-by-step explanation:

This is the best likely answer to the question about Peter's attempt to use divide-center method to find the line of best fit on a scatterplot.

Answer:

a: He had a different number of points to the left of the vertical line than to the right of the vertical line.

Step-by-step explanation:

edg2021

Bob makes a drawing of the flowers he wants to plant that has a scale of 5 cm for each meter. If the flower planting will be 15 m long, how long is the drawing of the planting?

Answers

Answer:

it would be 75 Centimeters long

I need help:)
Please help me

Answers

Answer:

No to both.

Step-by-step explanation:

Write a number between 1 and 50 that has at least 8 factors. Write the factors.

Answers

Answer:

Step-by-step explanation:

1 - 50

Primes: 1, 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, and 47

Not Primes: 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28, 30, 32, 33, 34, 35, 36, 38, 39, 40, 42, 44, 45, 46, 48, 49, 50

At least 8 factors:

24 - 1, 2, 3, 4, 6, 8, 12, 24

30 - 1, 2, 3, 5, 6, 10, 15, 30

36 - 1, 2, 3, 4, 6, 8, 12, 18, 36

40 - 1, 2, 4, 5, 8, 10, 20, 40

42 - 1, 2, 3, 6, 7, 14, 21, 42

48 - 1, 2, 3, 4, 6, 8, 12, 16, 24, 48

Let me know if I've missed any!

whats 8989898 x 675 lol

Answers

Answer: 6068181150 lol

Step-by-step explanation:

9998799098

Step-by-step explanation:

idrk

what are the coordinates of the intercepts

Answers

Answer:

Buy ram 3500 Laramie Longhorn

Step-by-step explanation:

Answer:

negative one is ti on the y axis

PLEASE HELP ME
-3(x - 1) > -3x - 2

Answers

Answer:

0>-5

Step-by-step explanation:

Answer:

0>-5

Step-by-step explanation:

Which value is equivalent to 27^-4(27^5•27^2)-1?


PLEASE HELP ME!!!
and don’t mind the clue circle on there i pressed it on accident!!!

Answers

Answer:

2nd option) 1/27^7 is equivalent to 27^-4(27^5•27^2)-1

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