Me.red's science class , the ratio of boys to girls is 2.1 . If there are 9 total students in the class , how many boys are there ?

Answers

Answer 1

Answer:

6

Step-by-step explanation:

this is how I calculate:

2x + x  = 9

3x=9

x=3 girls

2(3)=6

6 boys


Related Questions


Find the value of x in the circle below.

Answers

Answer:

I think x=7

7x=9 * 21

7. A city is building a fence around a rectangular playground. If the perimeter of the playground is 100 feet and the length of one side of the fence is 32 feet, what is the width of the playground?

Answers

Answer:

100-32=68

Step-by-step explanation:

there are 68 feets on the playground

The histogram represents the time it takes employees to get to work each morning.
Which statement correctly describes the data?
The data is skewed left because the time it takes employees to get to work tails off to the left.
The data is skewed left because the time it takes employees to get to work tails off to the right.
The data is skewed right because the time it takes employees to get to work tails off to the right.
The data is skewed right because the time it takes employees to get to work tails off to the left.

Answers

Answer:

The answer is C. The data is skewed right because the time it takes employees to get to work tails off to the right.

Step-by-step explanation

Answer:

c

Step-by-step explanation:

it make more sense


Question 2
A forest ranger in an observation tower sees a bear 15 miles to the north. The ranger also knows
there are campers located 19 miles due west of her post.
To the nearest mile, how far are the campers from the bear?
O 24 miles
O 5 miles
21 miles
O 34 miles

Answers

Answer:

24 miles

Step-by-step explanation:

Please find attached a diagram explaining the question

this would be solved using Pythagoras theorem

The Pythagoras theorem : a² + b² = c²

where a = length

b = base

c =  hypotenuse

15² + 19²

225 + 361

586

the square root of 586 = 24 miles

look at pic 10 pts will mark brainilest

Answers

Answer:

A

Step-by-step explanation:

It’s a

Answer:

A

Step-by-step explanation:

this isa because the 2 rectangles on the net will make the sides and the triangles will finish the prism when u fold it it will be a rectangular prism plz mark me brnliest ill send u friend request

Shannon has 1 nickel, 2 dimes, and 5 unknown coins totaling $0.81. What kind of coins does Shannon have and how many are there of each denomination?

Answers

Answer:

The 5 unknown are 1 quarter, 3 dimes, and 1 penny.

Answer:

One penny

One nickel

Five dimes

One quarter total

Step-by-step explanation:

81 - 25(coins we know) = 56 cents left

So we know we need 1 penny

Then 4 coins make up 55 cents, so that's a quarter & 3 dimes

A truck weighs 14,000 pounds how many tons do two truck weigh

Answers

Answer:

Hey mate.....

Step-by-step explanation:

This is ur answer.....

7 ton....

Because :

1 ton = 2000 pounds

7×2000 = 14,000 pounds

Hope it helps!

Brainliest pls!

Follow me! :)

The lowest temperature on record in the United States was -80 Degrees at prospect creek camp Alaska. The highest recorded temperature decreases as 134 degrees in Death Valley California
Select all that apply

A. The difference in the recorded temperature is less than 134 degrees.

B. The difference in the record is 134 degrees.

C. The difference in the recorded temperatures is greater than 134°

D. The temperature for death Valley California was above 0°

E. The temperature for Prospect Creek camp was above 0°

Answers

Answer: (D) and (A)

Can somebody please help me and tell me what the error is!! PLEASE I NEED HELP ELSE I WILL FAIL MY CLASS AND GO TO SUMMER SCHOOL SO PLESE HELP ME!

Answers

I can not see the numbers

Look at the problem below.
p + q = 17
If p = 8, what is q?
B. II
A. 25
C. 9
D. 8

Answers

Answer:

C

Step-by-step explanation:

8+q=17

17-8=9

The answer is 9

You would replace p in the equation with 8, then subtract 8 from 17 leaving you with 9

Neee help right answers please

Answers

Answer:

Step-by-step explanation:

Divided the first 2 numbers by eachother and then by four use a calculator

Answer:

1146198.07

Step-by-step explanation:

I found out that I do not have honors math for the coming school year and instead have a regular math class… i am disappointed because I always have been in honor classes and then this happens not sure how this happened but I can’t change it.. but is regular math class just as good as honors? what are the differences between the two

Answers

Answer:

well in my school its that in honors math you are doing the math of next year kinda like ap math and regular your doing your school year math but im not fully sure if it works like that every where  

Step-by-step explanation:

Answer: it’s just as good as honors but you go faster and it’s a bit more complicated in honors classes for me at least it’s nothing too bad (this is my school system so it might be different for everyone :P)

Step-by-step explanation:

I have almost all honors except math too cause maths isn’t my favorite subject and I’m not so good at it :> I still get good grades tho so ya honors=regular—> mostly the same, has some differences

Find the area of the figure. (Sides meet at right angles.) pls help i suck at math if you help me i can help with English or something like that thx

Answers

Answer:

28 square ft

Step-by-step explanation:

the whole rectangle is 5X8 = 40

Now subtrast 2 rectangle of 2x3

2(2x3) =   2x6 =  12

40-12 = 28

In the triangle shown, determine Angle A to the nearest degree.
A
12 m
10 m
R
M

Answers

Answer:

12.............................

Answer:

12 m

Step-by-step explanation:

this  is anwer

The depth of a river at flood stage is marked as "O" on a tall pole in the middle of a riverbank. The pole is marked in 1-foot intervals above

and below 0 to show the current depth of the water.

Drag a value and a word to the blanks to complete the sentence.

When the water level is at the "-4" mark on the pole, the river is

feet

the flood stage.

Answers

Answer:

When the water level is at the "-4" mark on the pole, the river is 4 feet  below the flood stage.

Step-by-step explanation:

Given

[tex]Flood\ stage = 0[/tex]

Required

What does -4 represents

From the question, we can deduce that:

[tex]Above = +ve\ intervals[/tex]

[tex]Below = -ve\ intervals[/tex]

-4 belongs to the "below" category.

Hence, -4 mark represents 4 feet below the flood stage

Solve the inequality. graph the solution given below
2 < -y/5

Answers

Answer:

[tex]y<-10[/tex]

Step-by-step explanation:

[tex]2<\frac{-y}{5}[/tex]

Switch sides

[tex]\frac{-y}{5} >2[/tex]

Multiply both sides by 5

[tex]\frac{5(-y)}{5}>2*5[/tex]

Simplify

[tex]-y>10[/tex]

Multiply both sides by -1 (reverse the inequality)

[tex](-y)(-1)<10(-1)[/tex]

Simplify

[tex]y<-10[/tex]

Graph down below.

On a cube, what proportion of the surface area is on each face, to the nearest percent?

Answers

Answer:

Cubes have 6 equal faces, and the surface area is the sum of all of these faces. Thus, one face would be 1/6 of the cube's surface area, or about 17%.

Step-by-step explanation:

Number the lengths in order from shortest to longest. 2ft. 1yd. 9 ft. 18 in. 2 yd. ??​

Answers

Answer:

18in.,2ft.,1yd.,2yd.,9ft.

Step-by-step explanation:

18 inches is 1 foot and 6 inches so its the smallest. 2 feet is smaller than a yard so it goes next.After that is the yard it is 3 feet so thats why it goes after 2 feet.2 yards is 6 feet and 9 feet is bigger than 6 so thats why its the last.

Answer:

18 inches  inches is 1 foot and 6 inches so its the smallest. 2 feet is smaller than a yard so it goes next.After that is the yard it is 3 feet so thats why it goes after 2 feet.2 yards is 6 feet and 9 feet is bigger than 6 so thats why its the last.

Jay places $3200 in an investment account earning 4.1% interest compounded weekly. How much money would he have in the account after 5 years, if he made no deposits or withdrawals during that time?

Answers

Answer:

A = $3,926.71

Step-by-step explanation:

Given: Principal (P) = $3200, Annual Rate (R) = 4.1%, Time = 5 years

To find: How much money would he have in the account after 5 years, if he made no deposits or withdrawals during that time?

Formula: [tex]A = P(1 + r/n)^nt[/tex]

Solution: Compound interest is one of the most important concepts to understand when managing your finances. It can help you earn a higher return on your savings and investments, but it can also work against you when you're paying interest on a loan

First, convert R as a percent to r as a decimal

r = R/100

r = 4.1/100

r = 0.041 rate per year,

Then solve the equation for A

A = P(1 + r/n)[tex]^{nt}[/tex]

A = 3,200.00(1 + 0.041/12)[tex]^{(12)(5)}[/tex]

A = 3,200.00(1 + 0.003416667)[tex]^{(60)}[/tex]

A = $3,926.71

Hence, Jay would have $3,926.71 after 5 years is if he made no deposits or withdrawals during that time.

What is the volume of the sphere below?

A. 500/3 pie units 3
B.100/3 units 3
C. 25/3pie units 3
D. 125/3 pie units 3

Answers

Answer:

A. 500/3π units³

Step-by-step explanation:

The volume of a sphere is given by 4/3πr³:

4/3π5³

4/3π125

500π/3

The mean high temperature on a particular day in January is 31 degrees F and the standard deviation is 8.7 degrees. One year, the temperature was 52 degrees F on that day. What is the Z-score for that day's temperature? Round to the appropriate number of decimal places for Z-scores. Is this temperature significantly high? (greater than 2)​

Answers

Answer:

jsjs gnckdoesosensjkcjbdjd

During a two-day golf tournament, Juan scored −4 on the first day and −6 on the second day. What was his overall score for the tournament?

Answers

His overall score would be -10

Hope this helps

[tex]\huge\boxed{Answer\hookleftarrow}[/tex]

[tex]\huge{\textbf{\textsf{{\color{skyblue}{An}}{\blue{sw}}{\red{er}}{\color{red}{:}}}}}[/tex]

Score on first day = - 4

Score on second day = - 6

Total score = ?

Total score = Score on first day + score on second day

Total score = - 6 + - 4

Total Score = -10

⋆┈┈。゚❃ུ۪❀ུ۪❁ུ۪❃ུ۪❀゚ུ۪。┈┈⋆

What is the area, in square inches, of the trapezoid below?
14.6 in
6.7 in
19.6 in
7.9 in
Answer: A =
in?
Submit Answer

Answers

Answer:

140.16

Step-by-step explanation:


Write an equation for each situation. Then solve.
a. Karyl has x tickets for rides at the carnival. Her sister has twice as
many tickets. Together they have 18 tickets. How many tickets does
Karyl have?

Answers

Answer:

Step-by-step explanation:

Step 1: let's divide the total tickets into 2 respectively ie 18÷2=9

Step2: nw let's divede the 9 into 2 respectively and that give us 4.5. since her sister has as twice if many tickets therefore karyl has 4.5 tickets.

If b=5 what is b3 answer?

Answers

Answer:

15

Step-by-step explanation:

We know that b=5. Therefore, b is 5. Therefore, we plug this into the expression. (5)3. 5 times 3 is equal to 15. Therefore, the answer is 15.

If this has helped you please mark as brainliest

There are 12 kids in this class including you. If every person shakes hands with every other person, how many handshakes will there be all together?

Answers

Answer: 132 handshakes in total

Step-by-step explanation: 11x12 because one of them will be the one shaking hands with everyone else so he would have gotten 11 hands shaked so everyone would have gotten their hands shaked 11 times

So there are 13 people.
13 times 13 = 169

Hope this helps :D

I would appreciate it if someone could help answer this problem:)

Answers

Answer:

for interior angel use (n-2)180

Step-by-step explanation:

9-2 times180

7 times 180

1260

one interior angle is 1260/9

140

Another way to describe the area of a triangle is by saying it is half a _____?

Answers

Answer: Another way to describe the area of a triangle is by saying it is half of the product of its base and height

Step-by-step explanation:

Pls help. Don't answer if you don't know.

Answers

Answer:

The answer is C.

Step-by-step explanation:

It is 180÷5=36. n is basically just symbolizes 180, and b is the number of candles in each box.

I need help asap for the math

Answers

The slope is -1/5 after using the formula m=rise over run. Reflected across the x-axis, the slope is 1/5 because the y coordinates become negative when reflected across x-axis.
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