Malini answered 68 problems on a test correctly and received a grade of 80%. How many problems were given on the test, if all problems carried the same number of marks?​

Answers

Answer 1

Answer:

Below in bold.

Step-by-step explanation:

80% is equivalen to 68 correct answers

1%    ..        ..      ..       68/80      ..

100%   ,,     ,,     ,,         (68/80) * 100  =  85 questions.


Related Questions

Calculate the side lengths using the given scale.
Someone please help me!!

Answers

Answer:

x = 12 cm

y = 2 cm

Step-by-step explanation:

Length is G are 3 times the lengths in H.

Lengths in H are 1/3 the lengths in G.

x = 3 × 4 cm = 12 cm

y = 6 cm / 3 = 2 cm

Cathys playing a board game the game pieces are each in the shape of a triangle a triangle has a base of 1.5 inches in height of 2 inches what is the area of the pieces

Answers

Answer:

1.5

Step-by-step explanation:

Area of a Triangle = b x h /2

2 times 1.5 is 3, divided by 2 is 1.5

Long-billed curlews eat many different kinds of insects, including grasshoppers, as a source of food. It has been shown that pesticide use kills many of these insects. How would you expect an increase in pesticide use to affect to the population of long-billed curlews in the same area

Answers

An increase in the use of pesticides in the same area would lead to the population of long - billed curlews decreasing.

How will the population of long-billed curlews be affected by pesticides ?

An increase in pesticide use that kills many of the insects that long-billed curlews eat, such as grasshoppers, would likely have a negative impact on the population of long-billed curlews in the same area.

Since grasshoppers and other insects are a primary food source for long-billed curlews, a decline in insect populations due to pesticide use could lead to reduced food availability and increased competition for remaining food sources. This could lead to decreased population size and potentially even local extinctions.

Find out more on pesticides at https://brainly.com/question/13068338

#SPJ1

Given the figure below with mBFA = 166° and mBD = 88°, what is Help

Answers

Answer:

it should still be 166

Step-by-step explanation:

because bfa should be the same as bda

that's what i learnt about this

but i did this a long time ago so im about 70 percent sure that this is correct

SOMEONE PLEASE HELP ME WITH THIS!!
IMAGE DOWN BELOW!!
ILL GIVE YOU BRAINLIST ANSWER!!

Answers

Answer:

7.093 cm

Step-by-step explanation:

[tex]4.5^2+x^2=8.4^2[/tex]

[tex]20.25+x^2=70.56[/tex]

[tex]x^2=50.31[/tex]

[tex]\sqrt{50.31}= 7.093[/tex]

Find the volumn of prism given figures​

Answers

[tex]v = (5 \times 3 \times 6.5) + (2 \times 4 \times 6.5)[/tex]

[tex]v = 15 \times 6.5 + 8 \times 6.5[/tex]

[tex]v = 97.5 + 52[/tex]

[tex]v = 149.5 \: \: \: {cm}^{3} [/tex]


The probabilities by subject of on-time assignment submission and on-time arrival to class are given in the table. What is the chance
That the subject is physics if an assignment is submitted on time?
OA 82.396
ОВ.
88.596
Ос.
89.796
OD. insufficient data
ved.

Answers

D. insufficient data

We need to know the number of assignments in each class before we can tell the probability of interest.

__

If we assume the same number of assignments in each class, then 25.1% of on-time assignments were in physics. We note this is not an answer choice, further confirming we have insufficient data.


Drag each tile to the correct box. Not all tiles will be used.
The table represents the balance of Sylvia's loan, y, over a period of 24 months, x. She used technology to create the scatter plot shown and
determined the best fit equation to model the data, y=-382.05x +
25,077.40. Determine how long it will take to reach the given balances

Answers

Using the given linear function, it is found that:

The balance will be of approximately $17,000 in month 21.The balance will be of approximately $0 in month 66.

What is the function for the balance?

The balance after x months is modeled by:

y = -382.05x + 25077.4.

Hence, it will be of approximately $17,000 at x for which y = 17000, hence:

17000 = -382.05x + 25077.4

x = (25077.4 - 17000)/382.05

x = 21.

We apply the same logic to find when it will be of approximately 0.

0 = -382.05x + 25077.4

x = (25077.4 - 0)/382.05

x = 66.

More can be learned about linear functions at https://brainly.com/question/24808124

How many degrees Fahrenheit is -3°C? Help please

Answers

Answer:

26.6 degrees

Step-by-step explanation:

Formula

(°C × 1.8) + 32 = °F

(-3°C × 9/5) + 32 = 26.6°F

26.6

Solution:-

To convert temperature readings from celsius scale, formula used is -

[tex]\green{ \underline { \boxed{ \sf{F = \frac{9}{5}C +32 }}}}[/tex]

where

F = temperature in FahrenheitC = temperature in Celsius

Putting Values -

[tex]\begin{gathered}\\\implies\quad \sf F = \frac{9}{5}\times(-3) + 32 \\\end{gathered} [/tex]

[tex]\begin{gathered}\\\implies\quad \sf -\frac{27}{5} + 32 \\\end{gathered} [/tex]

[tex]\begin{gathered}\\\implies\quad \sf -5.4 + 32 \\\end{gathered} [/tex]

[tex]\begin{gathered}\\\implies\quad \sf 26.6\degree F \\\end{gathered} [/tex]

Therefore, 26.6⁰ Fahrenheit is equivalent to -3⁰C.

divide the sum of 39 and product of 18 and 6 by the difference of 50 and 14​

Answers

Answer:

the imino acid found in protein strcjure

What is the surface area of a square pyramid with a base with a width 6 and a triangular height of 8?

Answers

Answer:

A≈138.53

Step-by-step explanation:

A=a^2+2a √a^2/4+h2

find the area please and thank you

Answers

Answer:

60 cm²

Step-by-step explanation:

area of trapezium = 1/2(a + b) × h

= 1/2(6+14) × 6

= 20/2 × 6 = 10 × 6

= 60 cm²

6. A pond has 150 fish, and the population
decreases by 8% each day. Find the
population after 4 days.

Answers

102
Explanation: 8% of 150 is 12. 12 x 4= 48. 48-150= 102

I also need help with these! It would mean a lot.

Answers

English please sorry

Felix buys five vests for $22 each, three pairs of shoes for $50 each, and six hats for $17 each.

What is the mean amount that he spent?

$34.62

$32.81

$25.86

$22

Answers

Its 25.86

Because if you times 22 by five, it will be 110 & 50 times it by 3 will be 150 & 17 times it by 6 will be 102
So 110+150+102=162
& he bought 14 things in total
So 162 divided by 14 is 25.86

What is the area of the playground shown? The edges of the playground meet at right angles, except for the edge whose length is not given. Show all work.

Answers

Answer:

520,000

Step-by-step explanation:

1400 x 200 = 280000

(400 + 800) x 400 /2 = 240000

240000 + 280000 = 520000

The area of the playground is 520000 square feet.

What is the area?

The area is the amount of area occupied by an object's flat (2-D) surface or shape.

Given that the edges of the playground meet at right angles, except for the edge whose length is not given.

And to find the area of the composite figure,

find all the areas separately.

There is a square with a side length of 400 feet.

A rectangle with dimensions 200 feet by 600 feet.

Another rectangle with dimensions 1400- 600 = 800 feet by 200 feet.

And a triangle with a base of 400 feet and a height of 400 feet.

The area of the playground = (400 x 400) + (200 x 600) + (800 x 200) + (1/2 x 400 x 400)

The area of the playground = 160000 + 280000 + 80000

The area of the playground is 520000 square feet.

Therefore, the area is 520000 square feet.

To learn more about the area;

https://brainly.com/question/27683633

#SPJ7

Jasmine's credit card has a $2,000 balance that she carried over from last month. assuming her credit card charges an 18 percent annual interest rate, how much will her interest charges be this month?

Answers

Using simple interest, it is found that her interest charge this month will be of $30.

Simple Interest

Simple interest is used when there is a single compounding per time period.

The amount of interest after t years in is modeled by:

I(t) = Prt

In which:

P is the initial amount.r is the interest rate, as a decimal.

In this problem, considering the time in years, the parameters are:

[tex]P = 2000, r = 0.18, t = \frac{1}{12}[/tex]

Hence:

[tex]I(t) = 2000 \times 0.18 \times \frac{1}{12} = 30[/tex]

Her interest charge this month will be of $30.

More can be learned about simple interest at https://brainly.com/question/25296782

What is the value of the expression? Show your work.

Answers

[tex]\dfrac{7^{12} \cdot 7^9}{\left(7^6 \right)^3}\\\\\\=\dfrac{7^{12+9}}{7^{18}}\\\\\\=\dfrac{7^{21}}{7^{18}}\\\\\\=7^{21-18}\\\\\\=7^3\\\\\\=343[/tex]

Answer:

342.9385905398

I’m too lazy to put in any more so ya

Step-by-step explanation:

We solve the top first.

7^12 x 7^9

13,841,287,201 x 40,353,607

558,545,864,083,284,007


The bottom is (7^6)^3

(7^6)^3

(7^18)

1,628,413,597,910,449

558,445,864,083,284,007 divided by 1,628,413,597,910,449

342.9385905398

I’m too lazy to put in any more so ya

Which fraction below represents a terminating decimal?
A.
B.
C.
D.

Answers

Answer:

3/10

Step-by-step explanation:

The fraction, 1/12, can be written as 1/4 * 1/3. Since we know that 1/3 = 0.333333... and it doesn't terminate, we know that 1/12 doesn't terminate. Similarly 2/9 = 2/3*1/3 and 2/3 = 2*1/3, and neither of these fractions terminate. But, when dividing 3/10, you get 0.3, which terminates.

(7-2)² - 5 / 5 I dont get the exponent part can someone help me with whole problem

Answers

(7-2)² - 5/5

Do the math in the parentheses first.

7 - 2 = 5

Now the equation should read

(5)² - 5/5     or just       5² - 5/5

Do the exponent(s).

5² = 25

25 - 5/5

Do the division.

5/5 = 1

25 - 1 = 24

Therefore, according to our equation, the answer is 24.

I hope this answered your question.

name the angle using three points

Answers

MÎA or AÎM

the point where the angle is has to be in the middle, but for the other two letters, you can choose which one goes where

Amy planted a flower garden with rows of blue flowers, b, and rows of yellow flowers, y. Each row of blue flowers has 5 flowers, and each row of yellow flowers has 7 flowers. Which expression represents the total number of flowers Amy planted?
A. 5 + r + 7 + b
B. 5b + 7y
C. 5 × 7 + b × y
D. 5y + 7b

Answers

This problem has two variables, b and y. The b value is the number of rows of blue flowers, and the y value is the number of rows of yellow flowers.

In every row of blue, there are 5 flowers.

In every row of yellow, there are 7 flowers.

Therefore, our expression would be 5b + 7y.

I hope this answers your question.

-Toremi

Find the inverse of the function
f (x) = -8x + 9

Answers

Answer:

[tex]y=\frac{x-9}{-8}[/tex]

Step-by-step explanation:

1. change f(x) to y

2. switch x and y

[tex]x= -8y+9[/tex]

3. solve for y

[tex]x-9=-8y[/tex]

[tex]y= \frac{x-9}{-8}[/tex]

Answer: y = (9-x) / 8

Step-by-step explanation:

set f(x) = y

y = -8x + 9

to find inverse repalce all y values with x and x values with y then solve for y again

x = -8y + 9

x - 9 = -8y

y = (x-9) / -8

distribute -1 through the numerator and make 8 positive

y = -x+9/8

y = (9-x)/8

What is the value of the expression? Show your work.

Answers

69420 would be the answer of this due to the sirvalsbejejeb big ol 69420

Answer:

343

Step-by-step explanation:

Given :

[tex]\frac{7^{12}*7^{9} }{(7^{6})^{3} }[/tex]

Numerator

7¹² × 7⁹7²¹

Denominator

(7⁶)³7¹⁸

Fraction

Numerator/Denominator7²¹/7¹⁸7³343

Jerome is writing a number in scientific notation. The number is greater than one million and less than ten million. What will be the exponent in the number Jerome writes?

Answers

Answer:

6 will be the exponent

Step-by-step explanation:

1 million has 6 zeros

Write an expression that shows 104.

Answers

Answer:

k + 104

Step-by-step explanation:

k + 104

SHADOWS A rectangular billboard casts a shadow on the ground in the shape of a parallelogram. What is the area of the ground covered by the shadow? Round your answer to the nearest tenth.

Answers

Answer:

Its still a rectangle, just move the triangles, you get 450

Step-by-step explanation:

If you think of it like a triangle, you can use the base, the 90 degree angle, and the hypotenuse to get the area, do it twice since there are two, and your result is 225 for one triangle, 450 for both.

What's 83% of £408 and what is 41% of 53g and what is 97% of 345m

Answers

Answer:

338

21.73

334.65

Step-by-step explanation:

mulitply 408×.83

multiply 53×.41

mulitply 345×.97

2.5 divided by 1.5 round to the nearest tenth

Answers

Answer:

1.7

Step-by-step explanation:

Answer:

Step-by-step explanation:

1.5/2.5=15/25=0.6 no rounding necessary

What is the radius and diameter of 13cm

Answers

Answer:

Radius = 6.5

diam = 13

Step-by-step explanation:

diameter is already stated

radius is half of the diameter

Other Questions
A pianist plans to play 5 pieces at a recital from her repertoire of 27 pieces. How many different recital programs are possible? [tex]$a+a r+a r^{2}+\ldots \infty=15$$a^{2}+(a r)^{2}+\left(a r^{2}\right)^{2}+\ldots \infty=150$. Find $a r^{3}+a r^{4}+a r^{6}+\ldots \infty$[/tex]Options:[tex](a) $\frac{1}{2}$\\(b) $\frac{2}{5}$[/tex] find the range of the data.133,117,152,127,168,146,174 T_------ YRobotics and automation are increasingly used inthe travel and tourism industry to handle labourintensive and mundane tasks. Guys please help me!!! Who was the first president? Image attached 20 POINTSWhich one is false??? Narrate or explain what happened in the picture of RamayanaNarrate or explain what happened in the picture of Ramayana.? A company made 189,909 stuffed animals in 2009 in 2010 the company made 198,909 stuffed animals which statement correctly compares the number of stuffed animals that were there CHOICES : A 189,909 > 198,909 B 198,909 < 189,909 C 189,909 < 198,909 D 198,909 = 189,909 and can you please tell me what to do and the answer PLEASEEEEEE You can develop your___by learning how to make and keep friendships.social healthphysical healthwellnesshealthmental/emotional health i need help with this i will give 100 pt Why doesn't Maddy join the lesson?because she is too shy to talk to the instructorbecause she is too proud to learn with younger kidsbecause she is unwilling to swim in the shallow endbecause she is unable to do a cannonball by herself How did the entry of the United States affect the outcome of World War I? Which event occurred during the Cenozoic era?Early humans began to make tools, harvest plants, and make cave paintings.Pangaea, the super continent, was formed.Pangaea began to break apart into many continents separated by shallow seas.Cyanobacteria filled the water and air with oxygen. Cos2A + cosec4A = cot A-cot 4A What are the three major characteristics of Grants battle plans 2(3x+2)=6x+4 linear equations a. Find the mean and the median of this data:9,6,5,3,28,6,4,7.b. Which better describes the data set, the mean or the median? Explain. The sum of three numbers is 10. The sum of twice the first number, 4 times the second number, and 5 times the third number is 33. The difference between 6 times the first number and the second number is 28. Find the three numbers. Help me. its a poem by Edgar Allan poe "Annabel Lee"Comprehension QuestionsWhere does the poem take place?The poem takes place in a kingdom by the sea. From the type of language used to describe it, students may be able to identify the poem as taking place in a fairy-tale-like land.1. Who are the characters in the poem?2. When in the poem do the main events take place?Reminder you should be able to summarize the poem. If you need help, walk through each stanza identifying the plot events in each.