Help
1: You answer 82% of the questions correctly on a 50-question test. How many questions do you answer incorrectly?

2: In a class, 60% of the students are girls. There are 21 girls in the class.
A: How many Students are in the class?
B: How many boys are in the class?

Answers

Answer 1

Answer:

1: 9 questions incorrect and 41 correct

2: There are a total of 35 students. 21 girls and 14 boys.


Related Questions

Ava's watering can holds 2 liters of
water. She uses 200 milliliters to
water each of her plants. How many
plants can she water if she use the
entire watering can? (uh i’m about to get 0 ‍)

Answers

Answer:

2,000 m (2 Liters) = 100 plants

Step-by-step explanation:

2,000 milliliters make up 2 liters.

200 liters are being poured.

2,000/200 = 10

10 plants are being watered each time.

200 m = 10 plants

400 m = 20 plants

600 m = 30 plants

800 m = 40 plants

1,000 m = 50 plants

1,200 m = 60 plants

1,400 m = 70 plants

1,600 m = 80 plants

1,800 m = 90 plants

2,000 m = 100 plants

Let me know if this helps!

Alan has read 20% of his book. He has 64 more pages to finish. How many pages are there in the​ book?

Answers

Answer:

80 pages

Step-by-step explanation:

We can think of this as 80% of the book is 64 pages

.8x = 64

x=80

he read 80 books total

ASAP please :))) will greatly appreciate

Answers

Slope is 2/3 and slope is -4

What is the equation of the line that passes through the point (6,6) and has a slope of 5/3??​

Answers

Answer:

y = 5/3x - 4

Step-by-step explanation:

(6, 6)

m = 5/3

Slope-intercept:

y - y1 = m(x - x1)

y - 6 = 5/3(x - 6)

y - 6 = 5/3x - 10

y = 5/3x - 10 + 6

y = 5/3x - 4

Explain how you know that x^2-8x+20 is always positive.
Please help.

Answers

Answer:

if you rearrange to complete the square, you get (x^2-4)^2 +4

and seeing as anything squared will always be positive or zero, the lowest possible value for (x^2-4)^2 is 0, when x = 4

and 0 + 4 = 4, which is greater than 0, so positive

Step-by-step explanation:

We have x^2-8x+20 is always positive.

What is equation?

An equation is a  mathematical statement that is made up of two expressions connected by an equal sign.  In its simplest form in algebra, the definition of an equation is a mathematical statement that shows that two mathematical expressions are equal. For instance, 3x + 5 = 14 is an equation, in which 3x + 5 and 14 are two expressions separated by an 'equal' sign.

here, we have,

x^2-8x+20

=x^2-2.x.4+16+4

if you rearrange to complete the square,

you get (x^2-4)^2 +4

and seeing as anything squared will always be positive or zero,

the lowest possible value for (x^2-4)^2 is 0, when x = 4

and 0 + 4 = 4, which is greater than 0,

so, positive.

To learn more on equation click:

brainly.com/question/24169758

#SPJ2

The product of 7 and b is less than -35.
HELP ASAP

Answers

7b < -35
b < -5
.............,....,.

Which of the following constants can be added to x^2- 3x to form a perfect square trinomlal?
A. 2 1/4
B. 1 1/2
C. 4 1/2

Answers

Answer:

A 21/4

Step-by-step explanation:

When forming a perfect square trinomial you need to "complete the square".

All of the steps to completing the square when solving an equation:

1.  The leading coefficient must be 1.  

2.  Divide b by 2.

3.  Square (b/2)

4.  Add (b/2)^2 to both sides to keep the polynomial balanced.

5.  You can now write the perfect square trinomial and solve.

x^2 - 3x  

-3/2

(-3/2)^2 = 9/4 = 2 1/4

The difference of two numbers is 4. Their sum is 24.what are the numbers?

Write equation

Answers

Answer:

x = 14 and y = 10

Step-by-step explanation:

TRANSLATING WORDS INTO EQUATIONS:

Let the two numbers be x and y  

"The sum of two numbers is 24" translate as x + y = 24  

"Their difference is 4" translates as x-y=4

Those two equations make up the system of linear equations

SOLVING BY ELIMINATION:

Adding the two equations, we get

x + y + x - y = 24 + 4

2x = 28

x = 28 / 2

x = 14

substituting that into x + y = 24 we get

14 + y = 24

y = 24 - 14

y = 10

hope it helps :)

A.none
B.Supplementary
C.Complementary
D.Vertical

Answers

It would be supplementary because they would add up to 180 it wouldn’t be supplementary because the angles would have to add up to 90 and that isn’t the case in this example

Lisa rolls a number cube that has sides labeled 1 to 6 and then flips a coin. What is the probability that she rolls an odd number and flips tails?

A.1/8

B.1/4

C.1/2

D.3/4

Answers

Answer: B. 1/4

Step-by-step explanation: The probability of rolling an odd number is 3/6 since there are 3 odd numbers between 1 and 6 (1, 3, 5). The probability of flipping a coin and getting tails is 1/2 since you can either get heads or tails. With this knowledge, you must multiply these two probabilities to get the probability of getting an odd number AND tails; so, 3/6 x 1/2 = 3/12 = 1/4.

what is equivalent to 7⁶​

Answers

42 is then answer, 7x7x7x7x7x7=42

Hope it helps

Brainliest please
42 IS NOT THE ANSWER.

The answer is 117,649

The solids are similar. Find the volume V of the red solid.

Answers

Your welcome that's from my computer and got it correct

Answer:

13,564.8

Step-by-step explanation:

The ratio of the volumes of similar solids is the cube of the scale factor.

Scale factor:

red solid : blue solid = 12/10 = 6/5

Ratio of volumes:

volume red solid : volume blue solid = (6/5)^3

volume of red solid = 7850 ft^3 * (6/5)^3 = 13,564.8 ft^3

Answer: V = 13,564.8 ft^3

hugo has a cylindrical container that holds marbles. The container has a height of 10 inches and a radius of 5 inches.

Answers

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Jeremy ran 16 miles less than Kacie last week. Jeremey ran 8 miles. How many miles did Kacie run?

Answers

Answer:

24 miles

Step-by-step explanation:

if J (Jeremy) ran 16 less than K(Kacie) and J ran 8 miles add 8 and 16 together which is 24 to get the answer.

hope this helped

Answer:

24 miles

Step-by-step explanation:

let what Kacie ran be x miles

x-16=8, 16 being the difference of what they ran, 8 being how many miles jeremey ran

that makes x=24 because 16+8=24

PWEASE HELP I DON'T UNDERSTAND THIS

Answers

Answer:1) 76m

2) 239 cm

Step-by-step explanation:

Plzz help me plzz no links i really need help. will mark braiiniest

Answers

Answer:

B

Step-by-step explanation:

I hope this helps you :)

Answer:

thx for the points

Step-by-step explanation:

What is the ?, help please

Answers

Step-by-step explanation:

According to the base of similarity, then

12÷6=8÷x

12x=48

=4

6+4=

10

Given the sequence 9,6,3,0,..., at what nth term will the number become -24?

Answers

Answer:

12

Step-by-step explanation:

A sequence is given and we need to find the term when it will become -24 . The given sequence is,

9 , 6 , 3 ,0 , . . . . .

Here Common Difference can be calculated by subtracting consecutive terms . So the Common Difference is 6-9 = -3 . Here the nth term is (-24) .Now using the formula to find nth term .

⇒ T_n = a + (n-1)d

⇒ (-24) = 9 + (n-1)(-3)

⇒ -24-9 = (n-1)(-3)

⇒ (n-1) = -33/-3

⇒ n-1 = 11

⇒ n = 11 + 1

⇒ n = 12

Hence the required number of term is 12.

Complete the table of values for y = -2x + 11

Can you help? ​

Answers

Answer:

x  0  1  2  3  4

y  11  9 7  5  3

Step-by-step explanation:

basically you just plug in all of the x values shown in the table into the equation, to find the matching y values.

i hope this helps :)

how do find the √27 between? How can you solve without a calculator?

Answers

You need to break it down to the common multiples. For 27 it’s 9,3. 9 can also be divided by 3. Now you are left with the number 3

What is the answer to equation
-3× + 7 =1

Answers

Answer:x=2

Step-by-step explanation:

need help with this will give more points if you want

Answers

The rectangle on the left is smaller then the right one. I know this because the dimensions of each side are less than then the triangle on the right.

1) (-2,5)
2) (2,-5)
3) (-2,-5)
4) (2,5)

Answers

Answer:

(2,5)

Step-by-step explanation:

Answer is 4) (2,5)
I’m going to send pictures

Root 24 multiplied by root 6

Answers

Answer:

12

Step-by-step explanation:

hello :

√24 ×√6 = √(24×6) =√144 = √12² = 12

Answer:

root 144 or 12

Step-by-step explanation:

24 by 6 is 144 so root 144 becomes 12

Please solve the equation for this missing angle. Please Help ASAP!!!

Answers

Answer: D

Step-by-step explanation:

5x + 4x = 180°

Angles on a straight line add to 180°

What is the remainder when x2 + 5 is divided by x +1?

Answers

Answer: the answer is 6

Step-by-step explanation: You can use polynomial long division or synthetic division.

Your answer would be 6

44 is r% of 16 what is r

Answers

Answer:

r= 275

Step-by-step explanation:

Let's write an equation with the given information.

44= r% ×16

Rewrite the percentage as a fraction:

[tex]44 = \frac{r}{100} \times 16[/tex]

Divide both sides by 16:

[tex] \frac{r}{100} = 44 \div 16[/tex]

[tex] \frac{r}{100} = 2.75[/tex]

Multiply both sides by 100:

r= 2.75(100)

r= 275

IF YOU COULD HELP OUT THAT WOULD BE GREAT :)

Answers

What’s the question hun?

help pleaseee ill give u brainliest

Answers

Answer:

3.84 in³

Step-by-step explanation:

V=l*w*h

[tex]5.97*1.34*.48\\=3.839904[/tex]

≈3.84

Answer:3.84 in³

Step-by-step explanation:

6m - 8 = 1/2(-4m + 16)

Answers

Answer:

m=2

Step-by-step explanation:

6m - 8 = 1/2(-4m + 16)

Distribute

6m -8 = -2m +8

Add 2m to each side

6m-8+2m = -2m +8+2m

8m -8 = 8

Add 8 to each side

8m-8+8 = 8+8

8m = 16

Divide each side by 8

8m/8 = 16/8

m=2

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