In 1987, a survey of 1000 young people found that 540 said they smoked cigarettes, whilst
460 said they did not. In 2017, a similar survey of another 1000 young people found that
125 said they smoked cigarettes, whilst 875 said they did not.

Calculate the ratio of smokers to non-smokers in 2017. Give your answer in simplest form:
Show your workings.
[2 marks]

Answers

Answer 1

Answer:

1:7

Step-by-step explanation:

125:875

Then simply

The GCF between the two is 125:

125/125 = 1

875/125 = 7

So, the answer is 1:7!


Related Questions

............................

Answers

Answer:

Thaey are proportional

Step-by-step explanation:

can someone please help me.

Answers

Answer:

y=70° x=11

Step-by-step explanation:

.............ur welcome...........

What is the median of the following data set?
{5, 2, 9, 7,4}
A.5
B.7
C.8
D.9

Answers

Answer:

5

Step-by-step explanation:

The median of all the answers equal up to 5.

HI ME AGAIN I WOULD APPRECIATE IF YOU CAN HELP

Answers

Answer:

75 students were surveyed!

Step-by-step explanation:

strawberry: 25

coffe: 35

vanilla: 10

fudge ripple: 5

Just add that all together

[tex]25 + 35 = 60[/tex]

[tex]10 + 5 = 15[/tex]

[tex]60 + 15 = 75[/tex]

so 75

A recent survey of 800 seventh graders from across the state shows 4 out there of 10 like to play paper football. How many students said they like to play paper football?

Answers

Answer:

320

Step-by-step explanation:

800 = 10

x = 4

800 x 4 = 10 x

3200= 10x

x = 320

plz give some one answrer​

Answers

Answer:

x=120 (opp. angles of //gram)

Step-by-step explanation:

Because DA//CB and AB//DC (given)

Therefore ABCD is a parallelogram (opp. sides equal)

Therefore,

∠DAB = ∠DCB (opp. ∠s of //gram)

x = 120

Practice identifying reflectional and rotati Which letters have 2 or more lines of symmetry? Check all that apply. here's the better one​

Answers

Answer:

O, H, X

Step-by-step explanation:

i did this on edg hope this helps

Answer:

O H X

Step-by-step explanation:

What is the reference angle of 255°?​

Answers

Answer:

255 degrees is in quadrant 3. The reference angle in this case is the negative x axis to 255 degrees, which is 255 - 180 = 75 degrees

Step-by-step explanation:

The first three terms of a geometric sequence are as follows.
2, -10, 50
Find the next two terms of this sequence.
Give exact values (not decimal approximations).

Answers

Answer:

-250, 1250

Step-by-step explanation:

The pattern is to multiply by -5.

2,-10, 50, -250, 1250

9. State Bank pays 5.5 percent interest compounded semiannually on regular
savings accounts. Iva Howe deposited $2,800 in a regular savings account for
2 years. She made no other deposits or withdrawals during the period. How
much interest did her money carn?​

Answers

280 dollars I think

If you do 5.5% x 2year =0.1
2800 x 0.1= 280
Sorry if I'm wrong

Solve for x. round your answer to the nearest tenth
Trigonometry ​

Answers

Answer:

[tex]\displaystyle x \approx 16.5[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right  

Equality Properties

Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of Equality

Trigonometry

[Right Triangles Only] SOHCAHTOA[Right Triangles Only] tanθ = opposite over adjacent

Step-by-step explanation:

Step 1: Define

Angle θ = 70°

Opposite Leg = x

Adjacent Leg = 6

Step 2: Solve for x

Substitute in variables [tangent]:                                                                     [tex]\displaystyle tan70^\circ = \frac{x}{6}[/tex][Multiplication Property of Equality] Isolate x:                                                [tex]\displaystyle 6tan70^\circ = x[/tex]Rewrite:                                                                                                             [tex]\displaystyle x = 6tan70^\circ[/tex]Evaluate:                                                                                                           [tex]\displaystyle x = 16.4849[/tex]Round:                                                                                                               [tex]\displaystyle x \approx 16.5[/tex]

HELP ASAP THIS IS DUE IN A LIVE CLASS DONT GUESS ITS QUESTION 4

Answers

Answer:

2 answers

Step-by-step explanation:

factor: 2π(hr+π)

evaluate: 2π(hr+π)

hope that helps

pls help meh plssss asap

Answers

Answer:

1.) 150

2.) 10

Step-by-step explanation:

If you look at the chart, above the 25 in the seconds row in the gallons row is 150.

This means that the chart tells you there are 150 gallons for every 25 seconds.

The second question asks about 60 gallons. So, if you look at 60 on the gallons row, and look below it on the seconds row, you see 10.

This means the chart tells you there are 60 gallons for every 10 seconds.

I need help pls I don’t understand it

Answers

12x12 + 12x12 = 288 = root of 288= 16.97

Find the slope of the line.
Will give brainiest if correct.

Answers

Answer:

1,2

Step-by-step explanation:

Answer:

The slope of the line is (2)

Step-by-step explanation:

Good luck ^_^

please can someone help me it’s urgent i need it done by 8:00‼️

Answers

Answer: need to clam and not worry to much and study a lot to be come great and great at math

Step-by-step explanation: i try and i give it all i can and not give up

8 + 7 + (-4) on a number line

Answers

Answer:

11 is the answer

Step-by-step explanation:

8+7-4

15-4

11

on number positive 11 is the answer

its just simple addition and substraction then the result can displayed on number line where 11 comes on number line mark that point

The first five terms in a pattern are shown below. -0.5, -0.25, 0 , 0.25, 0.5, . . . Which equation represents the pattern?

Answers

Answer:

x + 0.25

Step-by-step explanation:

In this equation, x is representing an integer ( - 0.5, - 0.75, 0, 0.25) whilst 0.25 is a constant

Please answer this quick

Answers

I'm sorry but i can't really see the picture

Answer:

1/4

Step-by-step explanation:

DO THESE TWO PAGES
I gain: a decent grade on my rigged extra school
You gain: 25 points and brainliest

Answers

Answer:

19)A   20)A    21)A      22)C     23)D    24)D    25)B      26) A     27)B

28) A     29)B      30)A    31) The surface area of Tina's shoebox is 184a..

u can check the answers if u wantt !! :)

A rectangular prism has a volume of 175 in'. The height of the prism is 7 in. The base is a square. What is the length of a side of the base?​ please help

Answers

Answer:

a=5cm

Step-by-step explanation:

V=B*H

You will get base if you do this:

B=V:H

B=175:7

B=25

I'm not so good with English, side is probably a,so:

Formula for base: B=a²

Then a=√B

a=√25

a=5cm

I hope this helps.

2\0.1 x 10\10 = it would help me a lot

Answers

Answer:

The answer is1 thank you

Helppppp please it’s timed

Answers

Answer:

Estimated population of New Hampshire is

A. 35,000

Matilda needs at least $112 to buy a new dress. She has already saved $40. She earns $9 an hour babysitting. Write and solve an inequality to find how many hours she will need to babysit to buy the dress. Interpret the solution.

Answers

she will need two more hours to buy the dress

This is how many hours you will need 5 hours

help this is khan academy

Answers

Answer:

20

Answer:

20

Step by step:

v = l × w × h

v = 2 × 2× 5

v = 4 × 5

v = 20

53+2444= ??????? HELP I D K THE ANSWER

Answers

Answer:

2497

Step-by-step explanation:

Answer:

2497

Step-by-step explanation:

53 + 2444

= 0053 + 2444

= 2497

Please help! Will give good rating

Answers

Answer:

88 ft²

Step-by-step explanation:

Find the area of the shaded region:

8x16= 128

Find the area of the un-shaded region:

5x4=20

20x2 regions= 40 ft² total

since the unshaded region is excluded from the shaded region subtract the area of the shaded region by the area of the unshaded region

128-40= 88

A= 88 ft²

donner l'écriture scientifiques des nombres ci-dessous
500 000 000=
650 000=
58 400 000 000=
0,000 6=
0,000 032=
0,000 000 072 3=

Answers

Answer:

Step-by-step explanation:

salut :

500 000 000= 5× 10^8

650 000= 6,5 ×10^4

58 400 000 000= 5.84 ×10^8

0,000 6= 6×10^-4

0,000 032= 3.2 ×10^-4

0,000 000 072 3= 7.23 × 10^-8

0,000 000 072 3=7,23×10^-7

A rectangle has a length of 12 meters and a width of 400 centimeters. What is the perimeter, in meters, of the rectangle?
Your answer:
16 meters
32 meters
48 meters

Answers

48 meters is the answer

Answer:

24 800cm.

Step-by-step explanation:

Length in metres =12×100=12000cm

Perimeter. =2[l+b]

Perimeter. =2[12000+400]

Perimeter. =2×12400

Perimeter. =24 800cm

Perimeter. =24 800cm÷100

Perimeter. =24.8m

PLEASE GIVE BRAINLIEST

Please help, finding radius, giving brainliest pls asap

Answers

Answer:

line segment EF EH EG EI

Step-by-step explanation:

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