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

-3(6 - 8i) standard form.

Answers

Answer:

6.

Step-by-step explanation:

6 - 8 = 2.

2 x 3- = 6.

Brainiest?

-3(6-8i) day you are the perfect example you from this

HELP PLS I'LL MARK YOU BRAINLIEST!!!! DUE IN 5 MIN!

Answers

Answer:

raise (-3y^1)^4  = -3^4*y^4=81y^4

Step-by-step explanation:

easy peasy, just look at laws of exponents

Answer:

[tex]81 y^{4}[/tex]

Step-by-step explanation:

(-3y)^4

[tex](-3y)^{4} = -3^{4} y^{4}[/tex]

[tex]-3^{4} y^{4} = 81 y^{4}[/tex]

[tex]81 y^{4}[/tex]

Please Help me, Ive Been Stuck On This Question For Ages. :C (Image in question) (And Questions As Well)
Which equations match the graph?

Answers

The answer is the third one.

Write the equation of the line in Standard Form that passes through the point
(-3, 2) and has a slope of 4/3

Answers

Answer:

6

Step-by-step explanation:

y = 2x + b/y=mx+c use this equation to solve the sum

using y=mx+c  to solve the sum

y=2, x=-3 and m=4/3

after putting and simplfying the eq we get the value of m

whats the slope between these points (3,2) and (6,5)

Answers

Answer:

In the pic

Step-by-step explanation:

If you have any questions about the way I solved it, don't hesitate to ask me in the comments below ÷)

Answer:

1

Step-by-step explanation:

Find the slope of the line that passes through (-97, 31) and (-95, 81)


Please help.

Answers

Insert this into y sub 1- y sub 2/ x sub 1- x sub 2

81-(31)/-95-(-97)=50/2=25

So your slope is 25.

If you need any more explanation comment on this and I’ll get back to you ASAP.

Hope this helps

4. Which of the following could be the areas of the three squares shown?

Answers

Answer:

Option (A)

Step-by-step explanation:

Three squares shown in the figure are formed on the sides of the given right triangle.

By Pythagoras theorem,

(Hypotenuse)² = (Leg 1)² + (Leg 2)²

Area of the square on the hypotenuse = Area of the square on the leg 1 + Area of the square on leg 2

Option (A).

95 = 40 + 55

True.

Option (B).

45 ≠ 35 + 25

False.

Option (C).

100 ≠ 10 + 10

False.

Option (D).

1200 ≠ 40 + 30

False

Therefore, Option (A) shows the areas of three squares.

4x +9 <30 as a real world problem

Answers

Answer:

I hope it's good enough

Step-by-step explanation:

Talia bought 4 watermelons for her annual watermelon summer party. She also spent an additional 9 dollars on the party supplies. The total amount she spent was less than 30 dollars. Write an equation to represent this word problem in which the amount of money each watermelon was is represented by x.

What's 2/12 Divided By 1/4?

Answers

The answer is 2/3

Flip 1/4

2/12 x 4/1

Reduce numbers

1/3 x 2 = 2/3

PLEASE HELP!!! I HAVE TO TURN THIS IN IN 5 MINS
what belongs in the blank spaces?

Answers

Answer:-2

Step-by-step explanation:

samuel needs to mail a package to his friend in new york. he places an address label with length represented by the function f(x)=3x^3

Answers

Answer:

what is the question

Step-by-step explanation:

NEED HELP ASAP PLEASE WILL GIVE BRAINLY IF CORRECT

Answers

Answer: 2x-9y=1

Step-by-step explanation:

(this is how i found it don't know if this is how you learned it though)

Subtract 20 from both sides of -3x-8y=20, so that it becomes -3x-8y-20

Subtract 19 from both sides of -5x+y=19, so you get -5x+y-19

Subtract like terms from both equations (-3x-8y-20)-(-5x+y-19), which gives you 2x-9y-1

-3--5=2, -8-1=-9, -20--19=-1

Add 1 to both sides and you get 2x-9y=1

After completing 9 levels of his favorite video game, Sam had found 6 coins. How many coins will Sam have found after completing for 24 levels?

Answers

Answer:

I'm pretty sure it is 16 coins.

Step-by-step explanation:

What I did was to divide 24 levels by 9 levels and I got, specifically, 2.66666666667. Then I multiplyed it by 6 and got 16. Hope it helps.

Which of the following is a solution of the equation -5x + 2 = -13: answers: x=-9, x=75 x=3 x=-3

Answers

Answer:

x= 3

Step-by-step explanation:

1. -5(3) + 2 = -13      

2. -15 + 2 = -13         A positive times a negative will always equal a negative

3. -13 = -13         Whenever you add anything to a negative number, the                    

                           number becomes smaller  

                     Ex:  -10, -9, -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, ...........

                           Although the number itself becomes smaller, its value    

                            becomes bigger      

Hope this helps.

Answer:

x= 3

Step-by-step explanation:

what are the steps to solve m -5 - 6m 5

Answers

Answer:

m = -2

Step-by-step explanation:

m - 5 - 6m = 5

First, you need to combine like terms

-6m + m = -5m

-5m - 5 = 5

Next, add 5 to both sides of the equation

-5m - 5 = 5

    + 5   + 5

-5m = 10

Divide -5 by both sides of the equation

-5m = 10

÷-5    ÷-5

m = -2

if x does not equal 16 then 2x+10 does not equal 42​

Answers

Answer:

The answer is

True

Please help and explain ASAP

Answers

Answer:

[tex]two \: persons \: still \: stnd \: a \: chance \\ patel \\ ndelo[/tex]

Help me for a brainllest. A theater holds 2,680 seats. The lower level has 100 less than 2 times as many seats as the upper level. The middle level has 80 more than 3 times as many seats as the upper level. How many seats are in the middle level?

Answers

Answer: 1430

Step-by-step explanation: x + y + z = 2680  

x = 2z - 100  

y = 3z + 80  

x + y = 5z - 20  

6z - 20 = 2680  

z = 450  

y = 1430  

Solution:  

x = 800, y = 1430, z = 450

Answer:

1430

Step-by-step explanation:

The line is translated 2 units down which equation will best describes the new line

Answers

Answer:

The y intercept should be 2 lower than the original equation

Step-by-step explanation:

the prices of stock A at 9am was $12.18 since then the price has been increasing at the rate of $0.06 each hour. At noon the price of stock B was $12.68. It begins to descrease at the rate of $0.09 per hour. If the 2 rates continue in how many hours will the prices of the two stocks be the same?

Answers

Answer:

3.33hours

Step-by-step explanation:

Where the number of hours = h

the prices of stock A at 9am was $12.18 since then the price has been increasing at the rate of $0.06 each hour.

The Algebraic expression =

$12.18 + $0.06 × h

12.18 + 0.06h

At noon the price of stock B was $12.68. It begins to descrease at the rate of $0.09 per hour.

$12.68 - $0.09×h

12.68 - 0.09h

If the 2 rates continue in how many hours will the prices of the two stocks be the same?

Stock A = Stock B

12.18 + 0.06h = 12.68 - 0.09h

Collect like terms

0.06h + 0.09h = 12.68 - 12.18

0.15h = 0.5

h = 0.5/0.15

h = 3.3333333333 hours

h = 3.33hours

PLEASE HELPP PLEASEEEEEEEE DUE SOOONN PLEASEEE PLEASEEE

Wilson and William meet in the computer lab to type up their
assignments. Wilson can type at a speed of 29 words per minute, and
William can type 30 words per minute. Wilson already has 972 words typed
up, William has typed 971 words. They sit down and start typing together,
the two students will reach the same word count before long. How long will
that take? What will the word count be?

Answers

Answer: 4 hours and 10 minutes

Step-by-step explanation: YALL know that I don’t want to explain  (It’s an LONG story) Divide the length of the document by the number of words per minute to find the number of minutes it will take. The number of minutes can then be divided by the number of minutes in an hour. 250 minutes is equivalent to 4 hours and 10 minutes.

Answer:

mmmm not sure but I think is in 1 minute xD

Step-by-step explanation:

wilson has 972+29(1 minute)= 1001

william has 971+30(1minute)=1001

Approximately how many pounds of sand will it take to fill the sandbox. (URGENT)

Answers

Answer:

E

Step-by-step explanation:

becuase 16 divided by 0.5 is 32 then 32x42=1344

Sorry if im late or got it wrong :)

Answer:

B

Step-by-step explanation:

I check my answer many times

I will mark you brainlliest and give you some points if you anser this.

Which of the following numbers is an integer?
- 1/2,
1/2,
π,
-7

Answers

Answer:

here's your answer

-7 is an integer

please mark me as brainliest

Write each decimal as a mixed number in simplest form.
6. 3.6

7. 10.4

8. 2.11

Answers

Answer:

[tex]\frac{1}{2}[/tex][tex]2[/tex] [tex]\frac{1}{2}[/tex][tex]5[/tex][tex]\frac{1}{2}[/tex]                            

These are the decimals in mixed numbers in their simplest form.

Hope this helps you!

When a 49 pound weight is attached to a spring, the spring
stretches 7 inches. Assume that the length of the spring y varies directly
with the weight attached x. Write and solve a direct variation equation to
find the length of the spring when a 63 pound weight is attached.

Answers

im not for sure but I think the answer is 9! my reasoning is below,,

Step-by-step explanation:

[tex] \frac{49}{7} = \frac{63}{x} [/tex]

do the crossing method and it would result in this

(49×x) = (63×7)

after simplifying both sides

49x = 441

divide both sides by 49 and the result will be

x = 9 !!

Please help will give brainliest!!!!

Answers

Answer:

answer is c

Step-by-step explanation:

if u add it all up you get answer

Write 6.37x10-2 in standard form?

Answers

Answer:

0.0637

Step-by-step explanation:

hope this helps :)

6.37 x 10⁻² in the standard form is 0.0637.

What is decimal?

Decimals are numbers that have two components, a whole number component and a fractional component, which are separated by a decimal point.

We have an expression,

6.37 x 10⁻².

Simplifying to standard form.

6.37 x 10⁻²,

= 6.37 x 1/100

= 6.37/100

= 0.0637

Therefore, 0.0637 is the standard form.

To learn more about the decimal;

brainly.com/question/109147

#SPJ2

Help please! The problem is in the photo.

Answers

Answer:

f(-3) = 7

Step-by-step explanation:

For these types of questions, you need to replace the x's in the equation with whatever is inside f(x)

So if its f(5) you would sub 5 into where all the x's are

What are the solutions of the equation x2-30=x

Answers

Answer:

x = 6 or x = -5

Step-by-step explanation:

x^2 - 30 = x

x^2 - x - 30 = 0

(x - 6)(x + 5) = 0

x - 6 = 0 or x + 5 = 0

x = 6 or x = -5

A horse walked 30 minutes for 3.5 km and another 30 minutes for 2.5 km. What was the horse's speed in hours

Answers

Answer: Is it not 6km an hour?

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