This venn diagram represents the science subjects studied by students what is the probability that a student,chosen at random,studies physics and chemistry or both ?

Answer:

(2)

Step-by-step explanation:

Answer:

25?

Step-by-step explanation:

Answer:

Hi

Step-by-step explanation:

Answer:

7 / 16

Step-by-step explanation:

Sample space is attached below :

Theoretical Probability of any event A

P(A) = (number of required outcome / Total number of possible outcomes)

Required outcome = sum greater than 7 = 14

Total number of possible outcomes = 32

P(sum greater than 7) = 14 / 32

P(sum greater than 7) = 7 / 16

Answer:

Your answer is dc

Step-by-step explanation:

Answer:

y = 2

Step-by-step explanation:

3y + 4 * (-1/4) =5

3y -1 = 5

3y = 6

y = 2

Answer: 15x-14y=22

3x+5y=7

2.5x-y=17

42x+0.4y=15

Step-by-step explanation:

The standard linear equation of two variables x and y is given by :-

Ax +By = C , where A is a positive integers,  and B, and C are integers.

Therefore, from the given options the linear equations that are in standard form are

15x-14y=22

3x+5y=7

2.5x-y=17

42x+0.4y=15

[-2x+8y=14 is not in standard form ∵ -2 is a negative integer.]

Answer:

it is 358

Step-by-step explanation:

Hope this helped have an amazing day!

Answer:

She needs to have $694,700 in her account

Step-by-step explanation:

Here, we want to know the amount that should be in Sally’s account on that day she turns 64

Firstly, we need to know the difference between the ages of 64 and 83

The difference between these ages are 83-64 = 19

So, she intends receiving $9,500 per month for 19 years

The number of months in 19 years is 19 * 12 = 228 months

So, the total amount of money she needs is 228 * 9,500 = $2,166,000

Now, we have an interest that would be compounded but in this case, we already have the amount needed but what we need is the principal to be compounded in this case

The formula for compound interest here is;

A = P( 1 + r/n)^nt

where A is the amount which is 2,166,000

P is ?

r is the interest rate = 6% = 6/100 = 0.06

n is the number of times we are compounding in a year; since it is monthly, that would be 12 times in a year

t is the number of years which is 19 in this case

Substituting all values, we have that;

2,166,000 = P( 1 + 0.06/12)^(12*19)

2,166,000 = P(1.005)^(228)

P = 2,166,000/(1.005)^228

P = $694,699

This rounded to a whole dollar is P = $694,700

Answer:

X

Step-by-step explanation:

18/6=3

Step-by-step explanation:

3e <= 6

e <= 2 (divide 3 on both sides)

The e-values that satisfy the inequality are:

e = 1 and e = 2.

Answer:

Solutions: e = 1 and e = 2

Step-by-step explanation:

3(1) ≤ 6

3 ≤ 6

3 is less than 6, so this works.

3(2) ≤ 6

6 ≤ 6

6 is equal to 6, so this works.

3(3) ≤ 6

9 ≤ 6

9 is not less than or equal to 6, so this does not work.

Answer:

y= -3/11x + 13

Step-by-step explanation:

hope this helps ( my cousins helped me) :))

Answer:

$27.30

Step-by-step explanation:

just do 290x6+330x3=2730

but just do this $27.30

so x is $27.30

Answer:

No of white balls = 5

Step-by-step explanation:

Given that,

Total no of red balls = 4

Total no of green balls = 6

The probability of not drawing a white ball in one draw be, [tex]P=\dfrac{2}{3}[/tex]

We need to find the number of white balls. Let there are x balls.

The probability of drawing a white ball = 1 - the probability of not drawing a white ball

= 1 -2/3

= 1/3

Using the formula for solving probability of having a white ball.

[tex]P=\dfrac{\text{favorable outcome}}{\text{total no of outcomes}}\\\\\dfrac{1}{3}=\dfrac{x}{4+6+x}\\\\\dfrac{1}{3}=\dfrac{x}{10+x}\\\\10+x=3x\\\\10=2x\\\\x=5[/tex]

Hence, there are 5 white balls.

Answer:

a. The function is a decay function

b. The function is f(n) = 33500 [tex](0.975)^{n}[/tex]

c. The population in the year 2025 is 31,800 to the nearest hundred

Step-by-step explanation:

The form exponential growth function is y = a [tex](1+r)^{x}[/tex] , where

The form exponential decay function is y = a [tex](1-r)^{x}[/tex] , where

∵ In 1995, the population of a town was 33,500

∴ a = 33,500

∵ It is decreasing at a rate of 2.5% per decade

→ The decrease means, it is a decay function, then use the 2nd form above

∴ f(n) = a [tex](1-r)^{n}[/tex] , where f(n) is the population in n decades

∴ It is a decay function

a. The function is a decay function

∵ The rate is 2.5% per decade ⇒ 2.5% each 10 years

∴ r = 2.5%

→ Divide it by 100 to change it to decimal

∵ 2.5% = 2.5 ÷ 100 = 0.025

∴ r = 0.025

→ Substitute the values of a and r in the f(n)

∴ f(n) = 33500 [tex](1-0.025)^{n}[/tex]

∴ f(n) = 33500 [tex](0.975)^{n}[/tex]

b. The function is f(n) = 33500 [tex](0.975)^{n}[/tex]

∵ We need to find the population in 2025

→ Find how many decades from 1995 to 2025

∵ There are 20 years from 1995 to 2025

∵ 1 decade = 10 years

∵ n is the number of decads

∴ n = 2 ⇒ (20/10 = 2)

→ Substitute n in the function by 2

∵ f(2) = 33500 [tex](0.975)^{2}[/tex]

∴ f(2) = 31845.9375

→ Round it to the nearest hundred

∴ f(2) = 31800

c. The population in the year 2025 is 31,800 to the nearest hundred

Answer:

Height h = 9 cm

Step-by-step explanation:

Given:

Surface area of cuboid = 102 cm²

Length l = 2 cm

Breadth b = 3 cm

Find:

Height h

Computation:

Surface area of cuboid = 2[lb + bh + hl]

102 = 2[(2)(3) + (3)(h) + (h)(2)]

51 = 6 + 3h + 2h

45 = 5h

Height h = 9 cm

Answer: 9 cm

Step-by-step explanation:

I love these questions!

Anyway, let's figure out the original price, discount in percent, and new price. 25% is the discount in percent, the original price is unknown, and the new price is $24. Here is the equation.

O - Original price

d% - discount in percent

N - New price

O x (1 - d%) = N

O x (1 - 25%) = $24

O x (1 - 0.25) = $24

O x 0.75 = $24

   0.75      0.75

O = $32

$32 - $24 = $8

Therefore, the original price of the socks is $8.

Answer:The Price of socks is

=$8

Explanation:Given -

Discount 25%

Price of shirt before discount =$24

Amount spent on both shirt and socks after applying discount

=$24

Assume the price of socks =$x

Then Shirt + Socks before discount =$(24+x)

After discount one has to pay 75% of the article.

Then = 75/100(24+x)=24

0.75(24+x)=24

18+0.75x=24

0.75x=24−18=6

x=6/0.75=8

The Price of socks is =$8

How to verify your answer -

One way

Price of shirt =$24

Price of socks =$8

Total =$32

Discount =25%

Discount for $32 is  32×25/100=$8

Amount one has to pay after discount =32−8=$24

Another way is -

Discount 25%

It means after discount it is enough if he pays 75% of the price.

In our case - Actual price is =$32

75% of $32 is =32×75/100=24

Step-by-step explanation:

Answer:

Step-by-step explanation:

2.66666666666666666666 * 2.666666666666666666 = 7.1111111111111 m

1 9 , 2 114 I Hope it help this is correct

Answer:

351

Step-by-step explanation:

[tex]\frac{1}{3}[/tex] p - 3 = 114 ( multiply through by 3 to clear the fraction )

p - 9 = 342 ( add 9 to both sides )

p = 351

There are 351 pages in the novel

Answer:

h < -13/3

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Step-by-step explanation:

Step 1: Define Inequality

h - 8 > 4h + 5

Step 2: Solve for h

Here we see that any value h smaller than -13/3 would work as a solution to the equation.

Answer:

(x + 5)/5 = 8.

Step-by-step explanation:

Let the number she thought of be x, then:

(x + 5)/5 = 8.

Answer:

The answer is 6.93 inches of snow.

Step-by-step explanation:

Snow fall on Sunday: 0.93. Twice as much on Monday: 0.93x2=1.86

Add it all up: 0.93+4.14+1.86=6.93

Answer:

The answer is 7

Step-by-step explanation:

1 3/4 x 4 = 7

Answer:

No he is not lol 16÷4=4, To buy 10, 10×4=40. 40-35=5 he needs 5 dollars more

Answer:

10. 700,000L greater than 70 kL

11. 6 gal less than 30 qt

12. 54 kL equals 540,000 dL

13. 10pt equal 5pt

14. 500mL less than 50L

15. 14c less than 4qt

Step-by-step explanation: Conversionssssss :)

the answer is:

9p = -3

p = -1/3

Answer:

Yo whats up

Step-by-step explanation:

I win and im the brainlest.

Answer:

the perimeter would be 34 m

Step-by-step explanation:

Answer:

34 is the perimeter

Step-by-step explanation:

so first you have to divide 72 into 9 to get the other length for other side then add all the sides (9+9+8+8) to get 34

Answer:

250%

Step-by-step explanation:

Answer:

c

Step-by-step explanation: