Mathematics Middle School

Marsha heard that 15% of her algebra class failed.If there were 20 students in the class, how many did not pass?

Answers

Answer 1
3 students did not pass.
Answer 2
3 students didn’t pass. Explanation- 20x0.15=3

Related Questions

QR has endpoints at Q(6, 0) and R(1, –2). Find the midpoint M of QR.

Answers

Subtract x-x
6-1=5
5/2 divide by two to split in half
Then y-y
0-2=-2
-2/2
(2.5, -1)
6+1 divided by 2; 0+(-2) divided by 2

Which of the following is true about similar triangles?

Answers

Answer:

Two triangles are said to be similar if their corresponding angles are congruent and the corresponding sides are in proportion . In other words, similar triangles are the same shape, but not necessarily the same size. The triangles are congruent if, in addition to this, their corresponding sides are of equal length.

o They have the same shape but not the same size.
o Each corresponding pair of angles is equal.
o The ratio of any pair of corresponding sides is the same.

Tia invests $2,500 at an interest rate of 4%, compounded quarterly, and another $2,500 at an interest rate of 3.75%, compounded annually. How much are the investments worth at the end of 5 years?

A) $5,193.75
B) $5,968.7
C) $6,241.20
​ D) $6,055.73

Answers

I’m pretty sure the answer is A I hope that helps :)

Help me out I only need B
Sam has a credit card balance of $562.37. He paid $200 of the balance this month and
plans to pay the remainder of it next month. The annual interest rate for Sam’s credit
card is 17.9%, which means he will pay 1.49% interest per month.

a. If Sam makes no other payments or charges on the credit card during the next
month, what is the amount of interest that will be added to his next month’s
bill?

b. What will be the total amount Sam will owe on his credit card next month if he
plans to pay the balance in full?

Answers

Answer:

142.74

pls mark as brainliest

BRAINLIEST IF CORRECT!!
which quadrilateral makes this statement true?
QUADRILATERAL: ABCD ≃

screenshots inserted !!

Answers

its B. . ..... .............

Answer is B just look for the same measurements.

Ben wants to have his birthday at the bowling alley with a few of his friends, but he can spend no more than $80. The bowling alley charges a flat fee of $45 for a private party and $5.50 per person for shoe rentals and unlimited bowling. If you had to write an inequality that represents the total cost of Ben's birthday for,p, people have given his budget, what number represents the coefficient?

Answers

Answer:

He can have 6 people

Step-by-step explanation:

45 + 5.50p = 50.50p

can someone pls help i don't understand:(

Answers

Answer:

A

Step-by-step explanation:

You can do this and get answer A

3:3=1 and 9:3=3

so the ratio is 1:3

think of 3:9 as a fraction. so if you reduce it, it would be 1:3. so your answer would be A) 1:3

Kendra has a painting canvas that is 30 inches wide by 40 inches high. She painted a red rose, which covered 50% of the canvas.

What was the area of the canvas which was covered by the red rose?
A.
300 in2
B.
48 in2
C.
600 in2
D.
1,200 in2

Answers

Answer:

C

Step-by-step explanation:

30*40=1,200

50%=0.5

1200*0.5 = 600

The answer is C
The reason to this is because the area of 30 and 40 is 120 and you divide that in half because 50% is half do you would get 600 therefore the answer is 600
If you could mark me brainliest that would be nice lolz

What’s the coefficient?

Answers

The coefficient is 17

Hope this helped and have a nice day :)
the coefficient is 18

The question is in the picture. Will mark brainliest! :D

Answers

they answer is D 5/49

the interior of a small barrel used to store rice has a radius of 4 inches and a height of 7 inches. what is the interior volume of the barrel in cubic inches?

someone please help me this is for a grade and it’s going to effect my final grade a lot :/

Answers

Answer:

V≈351.86

Step-by-step explanation:

V=πr2h=π·42·7≈351.85838

Which expression could be used to evaluate the expression below? -8/-2/-5

Answers

Answer

C)

Step-by-step explanation:

Help me please! I really need help

Answers

if you looked it up online you could find it. look on safari
I think the answer is going to B

A rectangular prism with a square base has a volume of 120 cubic feet. The base is 8 feet on each side. What is the height of the prism?

Answers

15feet

Step-by-step explanation: 120/8=15

pls give brainliest

please help marking brainlest
no links or no unnecessary comments ty

Answers

Answer:

think its 24 cm tho i could be wrong

plz lemme know if so

Answer:

24 cm i think

Step-by-step explanation:

PLZ PLZ PLZ HELPPPPPPPP

Answers

The answer is 1/10/81

Answer:

1 10/18

Step-by-step explanation:

Please help. Answer both questions correctly please, I'm sick and I don't feel like doing this I will give brainleist thanks!

Answers

Answer:

.20 for that they lose some the further down you go

Step-by-step explanation:

Hope you get better

Answer:

9. 0.016 pounds (Malika - 1.032; Adrian - 1.016)

10. The best inference I can create that is supported by this data set is that Malika put more potato salad per container (1.032) than Adrian did (1.016).

Step-by-step explanation:

Question #9 asks about the difference between mean masses, so what we need to do first is add up each of the value, and then divide them by 5.

Malika:

(1.1 + 1.08 + 1.05 + 0.95 + 0.98)/5

(2.18 + 2 + 0.98)/5

(3.16 + 2)/5

5.16/5

1.032 is the mean mass for Malika's containers.

Adrian:

(1.3 + 1.21 + 0.79 + 0.9 + 0.88)/5

(2.51 + 1.69 + 0.88)/5

(2.51 + 2.57)/5

5.08/5

1.016 is the mean for Adrian's containers.

Then, subtract the two means.

1.032 - 1.016

The difference between the means is 0.016 pounds (#9's answer).

With that information, we can quickly answer #10. For example, I've put:

The best inference I can create that is supported by this data set is that Malika put more potato salad per container (1.032) than Adrian did (1.016). (My answer for #10.)

CAN SOMEONE HELP ME PLSS

Answers

Answer:

∠ T ≈ 54.7°

Step-by-step explanation:

Using the cosine ratio in the right triangle

cos T = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{ST}{TU}[/tex] = [tex]\frac{\sqrt{21} }{3\sqrt{7} }[/tex] = [tex]\frac{\sqrt{3} }{3}[/tex] , then

∠ T = [tex]cos^{-1}[/tex] ([tex]\frac{\sqrt{3} }{3}[/tex] ) ≈ 54.7° ( to 1 dec. place )

The answer is 54.7
54.7
I hope this helps!
Have a great day

Keith has earned a 75%, an 86%, and an 83% on his tests so far this grading period. He wants to have an 80% average.

If each test is included equally in his average, what is the lowest score that Keith could earn on the next test and keep at least an 80% average?
A. 69%
B. 72%
C. 76%
D. 80%

Answers

Answer:

C. 76%

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

I NEED HELP FAST! Find the surface area of the composite figure.

Answers

b or a i think. hmmmmmmmmmmmmmmm

Mrs. Canter's math class went outside and plucked blades of grass and then measured them. The line plot shows what fraction of an inch 12 of the blades of grass were. What is the difference of the length of the shortest blade of grass and the length of the longest blade of grass? Write your answer as a mixed number in simplest form.

Answers

Answer: 1 1/4

Step-by-step explanation: The shortest blade of grass is 2/4 of an inch. The tallest blade of grass is 7/4 inches.  You must subtract 7/4 by 2/4 to get the answer. Subtract the numerator of the tallest blade of grass by the smallest blade of grass. 7/4-2/4=5/4. When you convert that to a mixed number you get 1 1/4.

can someone pls help me and find the missing number in the table plz

Answers

Answer:

1) 4,20,45,48

2)26,130

last two i got 78, 66 dont take my word for it

Step-by-step explanation:

Can someone help me
PQR is similar to XYZ

Answers

is there a graph? not sure what to solve.

(08.03 LC)
Samir recorded the number of different types of pets his friends have in the table shown below:

Cats 2
Dogs 4
Rabbits 1
Guinea Pigs 4
Which of the following plots represents the data in the table? (1 point)

Answers

Answer:

4

Step-by-step explanation:

The answer is option 4

Find the mean absolute deviation (MAD) of the data in the pictograph below.

Answers

Answer: the answer is 16

Step-by-step explanation:

who ever gets this right will get a brainlest

Answers

A. Right angle i got you!!!!!!

Answer:

It is a right angle because when you look at it the angle doen't form an obtuse angle and an acute angle is small so it only leaves  the right angle which is letter A.

Step-by-step explanation:

Mr. Jensen makes salt dough using 1 cup of salt for every 3 cups of dough. Which graph represents the amount of salt in his dough?

Answers

Answer:

The third graph

Step-by-step explanation:

It is the first graph.

Explanation: The first time the line crosses over a point it is on 9 and 3. The 9 is for cups of dough and the 3 is for cups of salt. So for every 3 cups of dough there is one cups of salt. (Divide both 3 and 9 by 3 to get another answer if you need.) HOPE THIS HELPS! :D

A class contains 12 female and 20 male students. Find the probability that when two students are chosen randomly from the class, the first student is male and the second student is female.

Write the probability as a fraction in the simplest form.

Answers

3/5 for girls and 2/5 for guys

Answer:

15 / 62

Step-by-step explanation:

Since there 32 students, of which 20 are male, the probability of selecting a student and them being male first is 20/32.

The probability of selecting another student and they are female is 12/31, because the male student is counted out of the selection because he is already picked.

This makes the probability 20/32 x 12/31 = 15 / 62

PLZZZZZZZZZ HELP i will give BRAINLEST
a person driving down the road sees 2 stop lights ahead. each fight can each be either red (R), yellow (Y), or green (G). which list shows all the possible combinations for the two lights?

A- RYG, RYG

B- R, Y, G, R, Y, G

C- RY,RG,YR,YG,GR,GY

D- RR,RY,RG,YR,YY,YG,GR,GY,GG

Answers

I would choose the answer b
i think the answer is B

What is the value of X?
X+9=16

Answers

Answer:

5

Step-by-step explanation:

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