The ratio of boys to girls in a group is 7:3. If there are 40 more boys than girls, work out how many girls there are

Answers

Answer 1

Answer:

Odadasdsadasadad

Step-by-step explanation:

Answer 2

Answer:

These units equal to 40. Therefore, each of these units would be equal to 10. If this is the case, then for the ratio to be true, each of the other units would be 10 as well. Therefore, this will give a total of 100.

Step-by-step explanation:


Related Questions

Sam had 1 1-2 m of rope. He cut off 5-8 m and used it for the project. How much does Sam have left​

Answers

1 1/2 m and 5/8 meter need to have the same denominator in order to subtract.

1 1/2 is equivalent to 12/8
Now 5/8 and 12/8 have the same denominator so you can subtract.
12/8-5/8= 7/8
7/8 m is left

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The area of a rectangle is 241.2 m². If the length is 15 m, what is the perimeter of the
rectangle? 1)
Solve on paper. Then check your work on Zearn. 1)
The perimeter of the rectangle is
m.
I need an answer

Answers

Area = length * width
241.2 = 15 * width
Width = 241.2/15 = 16.08 meters
Perimeter = 2*length + 2*width = 62.16 meters

7= -5x
Select one:
O1. Multiply each side by 5.
O2. Multiply each side by -5.
O3. Multiply each side by 1/5.
04. Multiply each side by -1/5.

Answers

Option 2 multiple each side by -5
Option 4. Multiply each side by -1/5
It’s the same as dividing by -5.
The - cancels out and 5/1x1/5 is equal to one

An arithmetic sequence has this recursive formula:
a1=9
an=an-1 -3
What is the explicit formula for this sequence?
A. an=9+(n-1)(-3)
B. an=-3+(n-1)9
C. an=9+(n-3)(-1)
D. an=-1+(n-9)(-3)

Answers

Answer:

The correct answer is:

Option A. a_n=9+(n-1)(-3)

Step-by-step explanation:

Given that

a1 = 9

[tex]a_n = a_{n-1}-3[/tex]

We can see that in recursive formula the next term is being obtained by subtracting 3 from previous term

That means that the common difference is -3

We also know the first term

The general form of explicit formula for an arithmetic sequence is:

[tex]a_n = a_1 + (n-1)(d)[/tex]

We know that a1 = 9 and d = -3

Putting the values we get

[tex]a_n = 9+(n-1)(-3)[/tex]

Hence the correct answer is:

Option A. a_n=9+(n-1)(-3)

Need help because the person that did answer the question got it wrong

Answers

Answer:

2,700in

Step-by-step explanation:

It is 2,700 inches I think so

Factor the expression below.
-r – 8

1: -(r + 8)
2: r-8
3: 8 - r
4: 8r

Answers

Answer:

if you take -as a common then -(r+8) will come

please write the proportion fir then and i’ll solve it

Answers

Answer:

what is the problem?

which is the best estimate for the mass of a desktop computer
a 500 g
b 10 l
c 10 kg
d 100 g

Answers

A is the answer 500g

Please help me this is pretty hard

Answers

Answer:

1 is the answer

Step-by-step explanation:

Colton is going to invest $76,000 and leave it in an account for 15 years. Assuming the interest is compounded daily, what interest rate, to the nearest hundredth of a percent, would be required in order for Colton to end up with $155,000?

Answers

Answer: 4.75%

Step-by-step explanation:

Please help with this question

Answers

Answer:

-16

Step-by-step explanation:

becjv dfv igcicifcigxixixicocvicicirxc ou9 xexiixi xiexexuwuzwxit

Answer:

I would say  57 is the answer

Step-by-step explanation:

Aliyah ran 17.7 miles less than Imani last week. Aliyah ran 15.9 miles. How many miles did Imani run?

Answers

Imani ran 33.6 miles

Which of the following figures does not have a triangular cross section?

A. A Cone

B. A Square Pyramid

C. A Cylinder

D. A Triangular Prism

Answers

Answer:

C. A cylinder does not have a triangular cross section

The diameter of a circle is 16 yards. What is the circle's area?
d=16 yd
Use 3.14 for n.

Answers

Answer: D=16km

r=8km

circumference of a circle= 2πr

                                     = 2*3.14*8

                                     =50.24km

 P.S 3.14 is used as the value for π (pie)

Step-by-step explanation:

Rewrite in slope intercept form x+y=3

Answers

Answer:

y = -x + 3

Step-by-step explanation:

Subtract x and boom.

Answer:

y = -x + 3

Step-by-step explanation:

Solve for y

x + y = 3

y = -x + 3

Convert 1.8 kg to g.

Answers

Answer:

1800 grams

Step-by-step explanation:

1.8 × 1000 = 1800

To convert kg to g you have to multiply the mass value by 1000

hope it helps!

what is the sum of 6 ×10^3 and3×10^2​​?

Answers

Answer:

6,300

Step-by-step explanation:

6000+300

expressed as standard form^

Ron used 14 centimeters of tape to wrap 2 presents. How much tape will Ron need in all if he has to wrap 6 presents? Assume the relationship is directly proportional.

Answers

Answer: 2x7=14 present so

6x7=42

Step-by-step explanation:

2 presents=14 centimeters
6 presents= x centimeters
Cross multiply
2x=14x6
2x=84
Divide both sides by 2
X= 42
So he uses 42 centimeters of tape to wrap 6 presents

This one too, again if you dunno it don’t anwser xd

Answers

Answer:11

Step-by-step explanation: think about 5+6 then when you add 11 to the -5 you get 6.

Answer:

The answer is -11.

Step-by-step explanation:

-11 + 6 equals -5.

This is because there is more negative than positive, so -11 would cancel out 6 positive, leaving behind 5 negatives.

#teamtrees #WAP (Water And Plant)

What is the solution to 3x+2=x+8

Answers

that’s the answer and i showed the work hoped this helped!!!

In the scale used on a blueprint .1\4 inch represents 2 feet,on the blueprint what is the length of a room with an actual length of 20 feet?

Answers

Answer: The length of the room on blueprint = 10 feet.

Step-by-step explanation:

Given: On blueprint,

[tex]\dfrac14[/tex] inch = 2 feet

i.e. 1 actual feet = [tex]2\times\dfrac 14 =\dfrac12\text{ inch}[/tex]

If the actual length of 20 feet, the length of a room on blueprint = [tex]20\times\dfrac12\text{ feet}[/tex]

= 10 feet.

Hence, the length of the room on blueprint = 10 feet.

Solve the equation.

s/2 = 2.5

A

12.5

B

5

C

50

D

10

Answers

Answer:

B

Step-by-step explanation:

Does the tablets shown a proportional relationship? If so, what is the value of y when x is 10?

Answers

Answer: Understand that a relationship between two variables, x and y, is proportional if it can be expressed in the form y/x=k or y=kx.

I need this answered but it needs to be answered using PEMDAS Number two please

Answers

Answer:

4

Step-by-step explanation:

10 / 2 + 1 x 4 - 5
first you need to multiple and divide
5 + 4 - 4
now work the remaining left to right
9 - 4
5

Write 2.6×10^4 in standard notation.​

Answers

i believe it would be 26,000

I NEED HELP ASAP PLEASE !!!!!!!!!!!!
Which of the following sets of ordered pairs satisfies the requirements for being a linear function?
a) (−1, 1), (0, 3), (1, 4), (2, 6), (3, 5)
b) (4, 1), (5, 2), (6, 4), (8, 5), (9, 7)
c) (5, 0), (10, 2), (15, 4), (20, 4), (22, 6)
d) (−1, 3), (0, 5), (1, 7), (2, 9), (3, 11)

Answers

Answer:

D

Step-by-step explanation:

Sorry I didn't see your question until now :(

Which trig function would you use?

Answers

Answer:

I will use option A sine formula

sine or tangent but i really think its tangent

plz answer only if correct :)

Answers

Answer:  -21

Step-by-step explanation:

11-32

Each of three friends—Lin, Jada, and Andre—had the goal of raising $40. How much money did each person raise?


Lin raised 100% of her goal.

Jada raised 50% of her goal.

Andre raised 150% of his goal.

Answers

Answer:

Down Below

Step-by-step explanation:

Lin: 100% of 40 = $40

Jada: 50% of 40 = $20

Andre: 150% of 40 = $60

The money raised by three friends is given below,

Lin raised 100% of her goal = $40

Jada raised 50% of her goal = $20

Andre raised 150% of his goal = $60

What is the percentage?

The Percentage is defined as representing any number with respect to 100. It is denoted by the sign %. The percentage stands for "out of 100." Imagine any measurement or object being divided into 100 equal bits.

Given that Each of the three friends—Lin, Jada, and Andre—had the goal of raising $40.

The amount raised by all three friends will be calculated as,

Lin: 100% of 40 =40 x 1 =  $40

Jada: 50% of 40 = 40 x 0.5 = $20

Andre: 150% of 40 =40 x 1.5 = $60

Therefore, Lin raised 100% of her goal which is $40 Jada raised 50% of her goal which is $20 and  Andre raised 150% of his goal which is $60.

To know more about percentages follow

https://brainly.com/question/24304697

#SPJ5

x^(2)-8x+15=0
that is x squared -8x+15=0
this is a algebra 2 problem

Answers

Solution
x = 5
x = 3

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