please help i am confused

Please Help I Am Confused

Answers

Answer 1

Answer:

Step-by-step explanation:

If 70% passed both, then that means 30% passed either one test, or neither test.

Since 80% passed the first test, we know that 20% of the students failed the first test.

This means that the other 10% of the students came from the 80% that already passed the first test.

These make up 10/80 = 12.5% of the people that passed the first test, meaning your answer is 100-12.5=87.5%


Related Questions

f(x) = 3x - 2x - 5

Factoring quadratics

Answers

Answer:

[tex](3x -5)(x+1)[/tex]

Step-by-step explanation:

Factoring [tex]3x^{2} -2x-5=0[/tex] results in [tex](3x -5)(x+1)[/tex]

What is x3+y3+z3. I been trying to figure it out but hard

Answers


This is a trick question. The answer is the question or (3x+3y+3z). You cannot add two numbers if they have different variables. Such as y+x the answer will just be y+x. If the question was 3x+3y+3x then it would be 6x+3y. So the answer is 3x+3y+3z!

The price of a ring was increased by 9% to £1800. What was the price before the increase? Give your answer to the nearest penny.

Answers

Price after 9% increased 1800
Price before increase 1800-9%*1800
=1638

Can u do these for me

Answers

Answer:

Step-by-step explanation:

Compare the decimals using >, <, or =

2.95 > 2.949 (2.95 can be written as 2.950, which is > 2.949)3.75 < 3.8 (3.8 can be written as 3.80, which is > 3.75)0.98 = 0.980 (0.98 can be written as 0.980, which is = 0.980)0.86 < 0.861 (0.86 can be written as 0.860, which is < 0.861)1.76 < 2 (2 can be written as 2.00, which is > 1.76)3.15 < 3.2 ( 3.2 can be written as 3.20, which is > 3.15)

Name two equivalent fractions for each fraction listed below.

2/4 = 1/2 = 4/81/3 = 2/6 = 3/91/10 = 2/20 = 3/30

If there are 16 cups in one gallon, how many cups are in 3 gallons?

16 cups = 1 gal.

? cups = 3 gals.

3 * 16 = 48 cups

How many cups are in 5 gallons?

5 * 16 = 80 cups

Compare and contrast squares are rectangles

Squares: have four sides and four equal sides

Rectangles: have four sides and have 2 parallel sides, meaning that they have 2 opposite sides that are equal.

Hope this helps!

The volume of this right prism is 266.5 ft³.

What is the height, x, of the prism?

Enter your answer as a decimal in the box.

x =
ft

Answers

Hey there!

1/2 lwh = v

lwh = 2v

h = 2v/lw

Formula:

H = 2v / l w

H = 2(266.5ft³)/lw

H = 533/lw

Other length are Missing like length and width

Incomplete question

Answer:

The answer is 8.2, I took the test.

Thank you please help if you can

Answers

Answer:

The answer is -

15.5^2 Mi

Give brainliest if it helps you

Tim wants to buy soda. He can choose a 6-pack of 0.355-liter cans or a 2-liter bottle. Which statement is true?
The 6-pack contains 0.130 liters more soda.
The 2-liter bottle contains 0.130 liters more soda.
The 2-liter bottle contains 0.645 liters more soda.
The 6-pack contains 0.645 liters more soda.

Answers

Answer:

The 6-pack contains 0.130 liters more soda.

Name two points on the line y = 6x. Does it describe a proportional relationship? Explain.

Answers

Anser: 2,12 and 4, 24. Yes, it is proportional.

Step-by-step explanation:

For every 2x, y will be inceased by 12.

Let x, y, and z represent three rational numbers, such that y is 512 times x and z is 50.25 more than x. If y=15.5, what is the value of z?
Enter your answer in the grid.
WHAT IS Z?

Answers

Answer:

z = 50.2802734375

Step-by-step explanation:

y = 15.5

y is 512 times x

z is 50.25 more than x

15.5/512 = 0.0302734375

x = 0.0302734375

0.0302734375 + 50.25 = 50.2802734375

z = 50.2802734375

If f(x) = x + 1, and g[f(x)] = x, what is g(x)?

Answers

Answer:

x-1

Step-by-step explanation:

f(x) = x+1

g[f(x)] = x

g[x+1]=x

g(x)=x-1

What is 3/5 1/2 because my answer is 7/10 and my teacher said it's wrong

Answers

Answer:

If you want to multiply then,

3/5 × 1/2 = 3/10 or 0.3

If you want to Add then,

3/5 + 1/2 = 6 + 5/5 × 2 = 11/10 or 1.1

If you want to subtract then,

3/5 – 1/2 = 6 – 5/5 × 2 = 1/10 or 0.1

If you want to Divide then,

3/5 ÷ 1/2 = 3/5 × 2/1 = 6/5

by finding tan θ in 2 different triangles find the value of m

Answers

Answer:

m = 3.75

Step-by-step explanation:

tanθ = 3/4θ = 37°

⇒ Angle opposing 3 in the left triangle is 53°

sin53° ⇒ 4/5 = 3/m4m = 15m = 15/4m = 3.75

PLEASE HELP ME QUICK !!

Answers

Answer:

9.138

10.28

11.26

12.55

ANSWER :

9.) 138

10.)28

11.)26

12.)55

HOPE IT HELPS

# CARY ON LEARNING

A skateboarding ramp is in the shape of a triangular prism, If the entire ramp is to be painted, and a can on spray paint covers 1,000 sq^2, how many cans will be needed?

Answers

Step-by-step explanation:

I don't have that much time to wait for all the clarifications, so I will make some assumptions based on what I saw in your comments so far.

please change the numbers in the calculation (and the recalculate) as necessary :

we are dealing with a triangular prism that acts as a ramp.

triangular means that the sides are in the shape of triangles.

but the front, the back and also the bottom areas are rectangles.

the area of a rectangle is length×width.

the area of a triangle is baseline×height/2

since it is supposed to be a ramp, I assume the triangle shape of the sides is right-angled. that means the back side of the ramp is standing straight up (90° angle with the bottom).

the height of the ramp is the height of the triangle side areas, and is simply the left leg of the triangle (again, going straight up with a 90° angle to the baseline).

I understand the height is 14 in.

I assume the front length is 50 in. and the depth of the ramp (the length of the baseline of the triangular sides) is 48 in.

now we get the length of the inclined "front" leg of the side triangles via Pythagoras

c² = a² + b²

with c being the side opposite of the 90° angle (exactly the inclined leg we are looking for) :

c² = 14² + 48² = 196 + 2304 = 2500

c = 50 in

that means our front rectangle of the ramp is actually a square of 50in × 50in.

the entire ramp is to be painted. that means really every side, including the bottom.

so, the whole surface area is the sum of the individual areas.

we have

1 (inclined) front area 50in × 50in

1 back side (straight up) 50in × 14in

1 bottom area 50in × 48in

2 side triangles 48in × 14in / 2 = 48in × 14in

so, we get as total area

50×50 = 2500 in²

50×14 = 700 in²

50×48 = 2400 in²

48×14 = 672 in²

---------------------------

6272 in²

now, one can of spray paint can cover 2000 in².

that means we need

6272 / 2000 = 3.136 cans.

and since we cannot buy fractions of cans, we need to round up.

we need 4 cans to do the painting job.

Jin's family took a road trip to Niagara Falls. Jin slept for the last 24 miles of the trip. If the total length of the trip was 400 miles, what percentage of the total trip had they travelled when Jin fell asleep?

Answers

22% is the answer for your question

find the area of the shaded region. please show your work​

Answers

Answer:

≈184.25

Step-by-step explanation:

1) if r=10 and 'a' is the length of the side of the triangle, then the ratio

a=r√3;

2) the required area can be calculated as

A=πr²-√3/4*a²; ⇔ A=πr²-3√3/4 r²;

3) according to the formula above, the required area:

[tex]A=r^2(\pi -\frac{3\sqrt{3} }{4} ); \ = > \ A=100*(3.1415-\frac{3*1.7321}{4})=184.2462[/tex]

help 1 hour left please

Answers

Answer: 110 degrees

Step-by-step explanation:

Regression equation : y = 3.915(1.106)x. which two equations below could you solve to find d, the number of days it takes the water lily population to double? 2 = 3.915(1.106)d 7.830 = 3.915(1.106)d 7.830 = 3.915(2)d 2 = 1.106d

Answers

Answer: 1.106D

Step-by-step explanation: 7.830=3.915(1.106)D and 2 = 1.106D

The number of days it takes the water lily population to double will be 3.915.

What is a regression equation?

The equation is written as Y= a + bX, where Y is the dependent variable and X is the independent variable.

This is an algebraic idea; imagine the initial number was x and the new number is 2x. If the constant rate of growth is r and the time is D, the function expressing growth will be:

[tex]2x=x(r)D\\\\ 7.830=3.915(1.106)D\\\\ 7.830=3.915(2)D[/tex]

Hence the number of days it takes the water lily population to double will be 3.915.

To learn more about the regression equation refer to the link;

https://brainly.com/question/7656407

3 3/5 + 1 1/6 answer as a fraction

Answers

Answer:

[tex]\boxed{\sf{4\dfrac{23}{30} }}[/tex]

Step-by-step explanation:

It is necessary to add the whole numbers of fractions from left to right in order to solve this problem.

3 3/5+1 1/6

First, you have to add the whole numbers.

3+1=4

After that, you can combine by a fraction.

6*3=18

18/5+ 1 1/6

1+6=7

7/6

Rewrite the problem down.

18/5+7/6

Solve.

5*6=30

143/30

=23/30

[tex]\boxed{\sf{4\dfrac{23}{30} }}[/tex]

Therefore, the final answer is 4 23/30.

I hope this helps you! Let me know if my answer is wrong or not.

Help I don't knoz if this is right but I think the answer is d​

Answers

-10k + 15
15 -4k-6k
Yes! The answer would be D.

solve for the missing side

Answers

Answer: D

Step-by-step explanation:

What is the distance between the points (3, 4.1) and (3, 1.2)?( i will give brainly points)

Answers

(0,3.1) you subtract the decimals

Answer:

2.9

Step-by-step explanation:

subtract the distances:

4.1-1.2

2.9

ABC is a straight line. BD=BC Angle ADB=80° Angle BDC=20° Work out the size of the angle marked x. Give reason for your answer. ​

Answers

Answer:

hai

Step-by-step explanation:

Pak Awi mau beli jam tangan Rolex hulk submarine dengan harga 300jt. Dia mau beli 2 tahun lagi

dengan asumsi harga jam naik 2% / tahun. Future Value

Uang pak awi sekarang hanya 100jt, berapa yang harus pak awi tabung tiap bulan nya agar 2 tahun lagi

dia bisa beli jam tangan tersebut, jika bunga tahunan adalah 15% / tahun (pajak = 10%) ??? Present

value. Future value. Present value annuity.

Bunga di terima per bulan, dan tetap di gulung.

Ya Berapa yang dia tabung tiap bulan

-pakai tabel

Please Help!

A. 18 ft by 27 ft
B. 18 ft by 9 ft
C. 9 ft by 13.5 ft
D. 72 in. by 108 in

Answers

Answer:

C

Step-by-step explanation:

I hope it is right, sorry if it's wrong. ☹

A circle has a radius of 9 cm and a sector of the circle has an arc length of 9. 7cm

Answers

Answer:

S = R θ      where θ is in radians

If θ  = 2 pi then S = 2 pi R       the circumference of the circle

θ = S / R = 9.7 / 9 = 1.08 rad

Since 1 rad = 360 / (2 pi) = 57.3 deg

the angle included = 1.08 rad * 57.3 deg/rad = 61.9 deg

Why would you want a small remote valve and a large valve close to the cylinder?

Answers

An individual will want small remote valve and a large valve close to the cylinder in order to build the pressure.

What is pressure?

It should be noted that pressure simply means the measure of the force that's applied over a unit area.

In this case, an individual will want small remote valve and a large valve close to the cylinder in order to build the pressure between each valve and also create more pressure for the cylinder.

Learn more about pressure on:

https://brainly.com/question/25736513

et
Which is true regarding Armando's use of algebra tiles?
O He used the algebra tiles correctly.
He did not represent the two original factors correctly.
O The signs on some of the products are incorrect.
O Some of the products do not show the correct powers
of x.

Answers

Answer:

The Last One

Step-by-step explanation:

hope this helps :))

Which statement is correct?

Answers

Answer:

C because the answer is right

What would be the formula if the farm agency could only use the letters A, B, C, and blank spaces?

Answers

The formula of the farm agency illustrates a geometric progression

The formula the farm agency could use is y = 3^n

How to determine the formula?

The number of characters is given as:

n(A,B,C) = 3

Represent the number of tags to create with y.

So, we have:

y = 3×3×3×3×..........×3( in n places)

Express as exponent

y = 3^n

Hence, the formula the farm agency could use is y = 3^n

Read more about formulas at:

https://brainly.com/question/2500080

Answer: y=4^n

Step-by-step explanation: I got the question right and this was the answer, I believe its because the company uses A,B,C and blank spaces so that adds one.

-2 (3x -5) -2= 22 - 68

Answers

Answer:

9

Step-by-step explanation:

Answer:

i belive the awnser is 9

Step-by-step explanation:

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