Maths - 7 out of 10 students are boys. If there are 30 students, how many of them are girls? Help me I stuck

Answers

Answer 1

Answer:

there would be 21 girls

Step-by-step explanation:


Related Questions

Help please!! It’s due tomorrow!

Answers

Answer: 119°

Step-by-step explanation:

The two angles are alternate interior angles, meaning they're congruent. If you need help understanding that, just search alternate interior angles. The lines are parallel so it works.

I need help please.​

Answers

Answer:

a

Step-by-step explanation:

easy

d) S.P. = Rs 400, loss = 20%, C.P. = Rs x, C.P = S.P. + 20% of C.P, Find C.P.​

Answers

SP = 400

Loss = 20%

CP = x

CP = SP + 20%CP

Therefore,

x = 400 + 20/100x

x = 400 + 1/5x

x - 1/5x = 400

5/5x - 1/5x = 400

4/5x = 400

x = 400 × 5/4

x = 100 × 5

x = 500

Is this relation a function by using straight line test

Answers

Answer:

No

Step-by-step explanation:

Graph all points. They do not make a line.

Explanation please, Will give brainiest

Answers

Answer:

29

Step-by-step explanation:

f(x)=4x+9

f(5)=4(5)+9

f(5)=20+9

f(x)=29

Jake spent a three-day weekend on the lake. On Saturday, he rented a pontoon boat for three hours and paid $435. On Sunday, he rented the same boat for five hours and it cost him $625. If he rented the same boat on Monday for just two hours, what is the cost for Jake to rent the pontoon boat for the entire three-day weekend?

Answers

Answer:

$265

Step-by-step explanation:

You add $435 and $625 and get $1060 dived that by four and you get

Answer: $1400 for the total 3 days

Step-by-step explanation:

A= (3,435)

B= (5,625)

625-435 190

M= ————— = —— = 95

5-3 2

Y- 435= 95(x-3)

Y - 435= 95x - 285

Y= 95x + 150

95(2) + 150

190 + 150

= $340 for Monday

Finally,

435 + 625 + 340= $1400 for 3 days

Maryam wants to make a jug of juice

Answers

Answer:

sounds delicious lol

Step-by-step explanation:

I hope Marian shares her juice

13(z+4)−6=23(5−z)
PLEASE HELP!!!

Answers

Answer:

z = 23/12

Step-by-step explanation:

13(z+4)−6=23(5−z)

Distribute

13z + 52 -6 = 115 - 23z

Combine like term

13z+46 = 115 -23z

Add 23z to each side

13z+23z+46 = 115-23z+23z

36z +46 = 115

Subtract 46 from each side

36z+46-46 = 115-46

36z=69

Divide each side by 36

36z/36 = 69/36

z = 23/12

Answer:

[tex]z=\frac{23}{12}[/tex]

Step-by-step explanation:

[tex]13(z+4)-6=23(5-z)\\13z+52-6=115-23z\\13z+46=115-23z\\13z+(23z)+46-(46)=115-(46)+23z-(23z)\\36z=69\\z=69\div 36\\z=\frac{69}{36}=\frac{23}{12}[/tex] I'd appreciate a brainliest

A computer is normally $800 but is discounted to $525. What percent of the original price does Mark pay? Round to a
whole percent
A) 16.5%
B
30%
C 7096
D 66%

Answers

Answer:

B is the answer bruh

Step-by-step explanation:

give me a brainless and follow me

Answer: The answer is b

Step-by-step explanation:

heres why:

$800-$525=$275

now ima round it up and make a percentage

$275=30%

so the answer is b

hope it helps ;)

gil borrows $8000 for college expenses. he will pay a total of $2280 back in interest after 6 years. what was his interest rate

Answers

Answer:

R = 41.8129%/year

Equation:

r = (1/t)(A/P - 1)

Calculation:

Solving our equation:

r = (1/6)((8000/2280) - 1) = 0.41812865

r = 0.41812865

Converting r decimal to R a percentage

R = 0.41812865 * 100 = 41.8129%/year

The interest rate required to get a total amount, principal plus interest, of $8,000.00 from simple interest on a principal of $2,280.00 over 6 years is 41.8129% per year.

Step-by-step explanation:

Answer:

I believe it is 4.75 %

Step-by-step explanation:

2,280 × 100 = 228,000

228,000 / 8,000 = 28.5

28.5/6 = 4.75 %

50 POINTS AND BRAINLIST IF RIGHT PLEASE HELP ME
Calculate the average distances the car and the washer traveled from the top of the track. Record the averages and your qualitative observations in Table B of your Student Guide. Record what happened to the washer after the car hit the textbook.
What is the average distance the car traveled?

What is the average distance the washer traveled?

Answers

Answer:

You didn't leave an image boo

Answer:

247 for both if its edge

Step-by-step explanation:

Please help me with this how to find y.

Answers

I’m not sure but it will most likely be 90 degrees!

Answer:

90 degrees

Step-by-step explanation:

Which digit holds a value that is 1 10 the value of the underlined digit in the number twenty-two thousand two hundred twenty-two? 22,222





the 2 in the ones place


the 2 in the ones place


the 2 in the tens place


the 2 in the tens place


the 2 in the thousands place


the 2 in the thousands place


the 2 in the ten thousands place
...

Answers

Answer:

??? I have the same problem itsits hard??, help me please

Need help first gets brainiest!

Answers

Answer:

1: 60 degrees

2: 50 degrees

3: 110 degrees

0+0???????????? ??????

Answers

The answer for 0+0 is 0.

Is -3 a solution to the equation 3x-5=4+2x? Explain.

Answers

Answer:

no

Step-by-step explanation:

3 times -3 is -9. -9 - 5 is -14.

2 times -3 is -6. -6 + 4 is -2.

-14 is not equal to -2

Answer:

no

Step-by-step explanation:

3(-3)-5

-9-5=-14

is not =to

4+2(-3)

4+-6=-2

Taura paid $64 for 4 tickets to a baseball game. At that rate, how much would it cost Victor to buy 6 tickets?
A.
$96
B.
$10
C.
$80
D.
$16

Answers

Answer:

A

Step-by-step explanation:

I hope this helps you out!

help pls I will give brainliest! 6

Answers

Answer:

8. 822

9. 1582

10. 1936

11. 8200

Step-by-step explanation:

What is the slope of the line in the graph?
HURRY!!!!
I have one hour left !!!

Answers

Answer:

1

Step-by-step explanation:

positive because as x increases, y increases

1 because for 1 increment of x there is 1 increment in y

equation is: y = x + 1

Answer:

If you are going from 2,3 to 1,2 then it is -1,-1 but if you are going the other way then the ones are positive

Step-by-step explanation:

Heeeeeeeeeeeelp !!!!!!!!!!!!

Answers

Answer:

Step-by-step explanation:

6x2 + 5x - 4

6x2 + 8x - 3x - 4

2x(3x + 4) - 1(3x + 4)

(2x - 1) (3x + 4)

These are the factors

Find the equation of the line that is perpendicular to y = - 2x + 6 and passes though the point (-4, 2).
es -)

Answers

y = 2x - 6

They are opposite so they would make an X and intersect.

Consider the triangles shown. Triangles V U T, U T S, and T S R are connected. Sides V T, U T, T S, and T R are congruent. If mAngleUTV mAngleUTS > mAngleSTR by the converse of the hinge theorem.

Answers

Answer:

A :)

Step-by-step explanation:

Answer:

a

Step-by-step explanation:

1. At the beginning of the month, Michael had $22 in his account at the school bookstore. Use a variable to represent the
unknown quantity in each transaction below and write an equation to represent it. Then represent each transaction on a
number line. What is the unknown quantity in each case?
First he bought some notebooks and pens that cost $16.
Then he deposited some more money and his account balance was $27.
Then he bought a book for English class that cost $39.
Then he deposited exactly enough money so that he paid off his debt to the bookstore.

Answers

Answer: -6

Step-by-step explanation: $22 - $16 + $27 - $39 = -6

Symbol equation --> a - b + c - d = x

Identify the equation of the circle J with center K(-7,3) and radius 6.

Answers

Answer:

equation of the circle J with center K(-7,3) and radius 6 is=

x^2+y^2+14x-6y+22=0

Step by step explanation:

Equation of circle with given centre (h,k) and radius r is

(x-h)^2+(y-k)^2=r^2

Given centre are K(-7,3) and radius 6.

So equation of Circle=

(x- -7)^2+(y-3)^2=6^2

x^2+14x+49+y^2-6y+9=36

x^2+y^2+14x-6y+22=0 answer

Answer:

(x + 7)² + ( y − 3)² = 36

Step-by-step explanation:

The equation of a circle with center (h, k) and radius r is                                (x − h)² + (y − k)² = r².

Define h, k and r using the given values. So, h= −7, k = 3, and r = 6.

Substitute the values into the equation of a circle.

(x − (−7))² + (y −3)²= 62

Simplify.

(x + 7)² + (y − 3)²= 36

Therefore, the equation of the circle J with center K (−7, 3) and radius 6 is (x + 7)² + (y − 3)²= 36.

Two sidewalks in a park are represented by lines on a coordinate grid two points on each of the lines are shown in the tables 2501133-3

Answers

Answer:

is there a some sort of picture

I don’t get what the question is sorry

А
The population of a city increased by 140 people last year. Which situation, when combined with that increase in population, results in a zero overall change in population?
The population of the city increases by 140 during the next year.
The population of the city decreases by 140 during the next year.
The population of the city stays constant during the next year.
D The population of the city decreases by 10 people per month during the next year.
B
С

Answers

Step-by-step explanation:

..

Answer:

D

Step-by-step explanation:

Help me with my math!!!!!

Answers

Answer:

g=3.5

f=42

Step-by-step explanation:

Answers

F is 42

G is 3.5

What is the slope? PLEASE HELP ME ON THIS I DONT UNDERSTAND THIS

Answers

Answer: 3/2

Step-by-step explanation:

sharons magazine subscriptions costs $25 per month. What is the change in the amount of money in her account after 2/3 of a year

Answers

Answer:

200 for 2/3 of a year

Step-by-step explanation:

8 × 25 = 200

In an orchard, there are 6 apple trees for every 4 pear trees. Create a ratio table to determine the number of apple trees in the orchard if there are 42 pear trees.

Answers

Answer:

Step-by-step explanation:42 divided by 6= 7 and then times 7 by 4 to get 28 which leaves you with the ratio 2:8

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