Mathematics High School

7. There are 40 boys in 7th grade. The number of girls in 7th grade is 30. Carly says
that means the ratio of the number of boys in 7th grade to the number of girls in 7th
grade is 4:7. Is Carly correct? Explain. If not, what is the correct answer?
HELP ASAPP THANKS

Answers

Answer 1

Answer:

I'm pretty sure Carly isn't correct.

Step-by-step explanation:

If I'm not mistaken, the ratio would be 4:3....

If I'm wrong, go ahead, sue me.

Related Questions

A and B are vertical angles. If m A = (5.x - 2)° and m
B = (3r + 12), then find the value of x

Answers

Answer:

Step-by-step explanation:

∠A=∠B               (V.O.A, Vertically oppt angles are eql)

5x-2=3x+12

5x-3x=12+2

2x=14

∴x=14÷2

x=7°

Answer:

hope that will help you

plz help me will mark brainlest 1 hour and two or more have to answer must get every one correctt and must answer all three

Answers

page one step two=. 5x=15
page one step three=. 5x/5=15/5
page one step four=. x=3


page two step one=. 6n+3-3=9-3
page two step two=. 6n=6
page two step three=. n=1


page three step one=. m/3+4-4=7-4
page three step two=. m/3=3
page three step three=. m/3*3=4*3
page three step four=. m=9

NEED HELP!! ASAP!! 50 POINTS!!
Write an equation of the line that passes through the given point an satisfies the given condition.
(-3,-5); parallel to y = -4x + 1

Answers

-6 = -1/2(9) + B

-6 = 4.5 + B

-6--4.5 = B

-1.5 = B

B= -1.5

y=-1/2x - 1.5

y=-1/2(9) - 1.5

y= -4.5-1.5  

y=-6

What is the simplified expression for 4 power 4 multiplied by 4 power 3 over 4 power 5? (1 point)

Answers

The solution to the problem is 16.

first, you must set up the equation.

[tex]4^4*\frac{4^3}{4^5}[/tex]

Then, simplify exponents.

256*[tex]\frac{64}{1024}[/tex]

Next, simplify the equation.

16

- y - 7x = 6
y + 7x = 8

Answers

Answer:

7 ,x is 1/7

Step-by-step explanation:

plss put me b plsss

؟
A student answers a test of 10 questions
in which he must answer "True"
"false", of
wich he is only sure of the answers he
gave
five questions, he answers the remaining
five at randone
What is the probability of that accredits at
least six in the exam?
so

Answers

Answer:I’m guessing 3 because there’s 10 he knows 5 are right so that’s half of the test, so he would receive half of the credits and half of 6 is 3.

Step-by-step explanation:

How many solutions does the equation 7x + 3x − 8 = 2(5x − 4) have?

Answers

Answer:

Infinite Solutions because it is 0 = 0

Step-by-step explanation:

Sue has 18 sweets
Tony also has 18 sweets

sue gives Tony x sweets

Answers

Answer:

18 sweets?

Step-by-step explanation:

Not much info to help me answer it

One serving of Mike’s crackers has 150 calories and a mass of 30 grams. How many calories are in 6 grams of crackers?

Answers

Answer:

30Cals

Step-by-step explanation:

150/30*6

Easy.

What does (+7)-(-3) equal

Answers

Answer:

10

Step-by-step explanation:

7−(−3)

=7−(−3)

=7+3

=10

Answer:

10

Step-by-step explanation: calculator

One roll of duct tape is 180 feet. One case of duct tape is 24 rolls. How many feet of duct tape are in 6 cases?

Answers

Answer:

There are 25,920 feet of duct tape in 6 cases that hold 24 rolls each.

Step-by-step explanation:

24 × 6 = 144

144 × 180 = 25,920 feet

Each year a store decreased the price of a certain model of TV by $35. If the
price in 2001 was $1,950, what was the price in 2009?
Group of answer choices

Answers

Answer:

dont you just multiply it should be 2,230

Step-by-step explanation:

It’s just 2,230i think sorry

Mr. Carter is building a circular fire pit in his backyard. The diameter of the fire pit is 6 feet and he will fill the interior with gravel covering 5/6 of the area. How much gravel will he need?
A. 23.55 sq. ft.
B. 28.26 sq. ft.
C. 94.2 sq. ft.
D. 113.04 sq. ft.

Answers

Answer:

23.55

Step-by-step explanation:

To calculate the area I did the following equation

area = 3.14 (r) (r)

area = 3.14 (3) (3)

area = 28.26

The area is 28.26 but the question is asking how much gravel would be needed to fill 5/6 of the area.

The equation for 5/6 out of 28.26 is

28.26 (5/6) = 23.55

So the final answer is (a.) 23.55 sq. ft.

-5X - 8y = 3
6x + 3y =3
Solve using elimination ?

Answers

Answer:

for the first one its x=30

for the second one its x=6

Step-by-step explanation:

its x=30 because at the end if you do the problem yourself, you would have to multiply 5×6 which is 30.

im not sure why its x=6 on that one i might be wrong but i did it but im also confused on it but i tried so yeah maybe it is.

Given the two points determine the equation of the line.


A(2,5); B(4,9)
y=-2x + 1
O y = 2x +1
O y = -2x - 1
O y = 2x-1

Answers

the answer is y= 2x + 1

Please help ASAP
Mark you as brainlister

Answers

you always want to remember a reflection over the y-axis results in the coordinates being changed to (-x,y)
an example would be (-5,4) then become (5,4)

Emily plans to put her graduation money into an account and leave it there for 4 years while she goes to college. She receives $750 in graduation money that she puts into an account that earned $127.50 in interest. What was the interest rate that the bank provided

Answers

Answer:

887.40

Step-by-step explanation:

amount = principal(1i)^n

i = .0425/2 = .02125 , n = 8 , principal = 750

amount = 750(1.02125)^8 = 887.40

Can someone help me plz

Answers

Answer: C

Step-by-step explanation:

Find the difference between the two points then change to opp. in order to find the other endpoint.

Find the 10th term of the sequence defined by the given rule. Assume that the domain of each function is the set of whole numbers greater than 0.

f(1) = 8, f(n) = f(n − 1) + 15

The 10th term is

Answers

Answer:

[tex]87.[/tex]

Step-by-step explanation:

[tex]f(1) = 8, f(n) = f(n − 1) + 15 \\ The \: 10th \: term \: is \: \\ 8(10 − 1) + 15 = 72 + 15 = 87.[/tex]

9999999999999999999999999999999999999+888888888888888888888888888888888888

Answers

Answer:

a lot

Step-by-step explanation:

Angle ABC is 42° and is reflected over the y-axis. How many degrees is angle A'B'C'? 1 point

Answers

Answer:24

Step-by-step explanation:

Bet

Wouldn’t it be 84°?
Since it’s being reflected therefore it’s doubling 42 x 2 = 84
That’s just my two cents though I might be wrong

What is (2x - 6)+ 4(x - 3)

Answers

Answer:

6x-18 is the simplest that it can go. brainliest plsss

The answer is 6(x-3)

if x and y vary directly, and x=3/4 and y =15 which of following represents this situation?

a x=11.25y

b y=11.25x

c x=20y

d y=20x

Answers

Answer:

A

Step-by-step explanation:

Because your not studying

Answer:

D

Step-by-step explanation:

simple plug and chug.

Understand that variables are already defined, x=3/4, y=15 meaning that if we plug one of the variables into an equation, we should obtain the other variable's number.

y=20x will result in y=15 when x=3/4 and vice versa.

Sam drove from San Diego (elevation 210 feet) to the Grand Canyon (elevation -247 feet). What is the difference in elevation between San Diego and the Grand Canyon?

Answers

Answer:

The difference is elevation is 457 feet.

Step-by-step explanation:

You simply add the two numbers together.

what is the missing value​

Answers

Answer:

Plug in what you are given for y then solve for x:

[tex]-2 + 2 = -3(x - 4)\\\\0 = -3(x - 4)\\\\0 = -3x + 12\\\\-12 = -3x\\\\4 = x[/tex]

The missing value would be 4.

what is the sympol of parralar
A. //
B.%
c.all
D.none​

Answers

Answer:

a.//

Step-by-step explanation:

i hope helps u ! plz follow me

The answer is A.// because it is the only one that I know that it parallel

Is the GCF right yes or no.

Answers

Answer:

yes

Step-by-step explanation:

Answer:

YES, THE GREASTEST COMMON FACTOR IS 7

Step-by-step explanation:

42 = 2 X 3 X 7

154 = 2 X 7 X 11

Solve for B. N=-m^2+3d/b

Answers

Answer:

b = 3d/n+m^2

Step-by-step explanation:

What is the result when 4x^3 + 4x^2 + 13x + 6 is divided by 2x + 1?

Answers

Answer:

15x^2 - x + 2

Step-by-step explanation:

Hhhhhhhhhhhhhhghghgghghhghgjhjhhjhnjhnjnujnjnjjjmijjninkmkmmkkmmkkmmkkmmimiik

Mrs. Potter was going through her Halloween candy to see which kind she would bring to school. She sorted using decimal values. .17 of her 100 pieces were black licorice. .42 were m&m's. .12 were skittles. .09 were smarties. .14 were lollipops and .06 were gum drops. Mrs. Potter decided to bring the black licorice and the gum drops to school. What percent of her candy did she bring to school?

Answers

Answer:

23%

Step-by-step explanation:

She sorted using decimal values.

We convert the decimals to percent

.17 of her 100 pieces were black licorice.

.17 = 0.17 × 100 = 17%

.42 were m&m = 0.42 × 100 = 42%

.12 were skittles. = 0.12 × 100= 12%

.09 were smarties = 0.09 × 100= 9%

.14 were lollipops = 0.14 × 100 = 14 %

.06 were gum drops. = 0.06 × 100= 6 %

Mrs. Potter decided to bring the black licorice and the gum drops to school. What percent of her candy did she bring to school?

Licorice = 17%

Gum drops = 6%

The percent of her candy that she brought to school = 17% + 6%

= 23%

The percent of her candy that she brought to school is 23%

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