3 years ago

Help me please I'm on a time limit

Mathematics

1 answer:

harkovskaia [24]3 years ago

3 0

How to do it

3n=25.50

c= 8.5t

You might be interested in

Which of the following statements about the expected value of a random experiment is true? A. The expected value is the value yo

Tom [10]

Answer: C

Step-by-step explanation: As the number of trials gets larger the average of the trials approaches the expected value

3 0

2 years ago

Read 2 more answers

It's spaghetti night at Carley's house. She has 1/2 of a cup of grated cheese to sprinkle equally over 3 bowls of spaghetti. How

Vsevolod [243]

Answer:

1/6 a cup on each bowl

Step-by-step explanation:

1/2 divided by 3 is 1/6

6 0

2 years ago

The sum of the squares of two consecutive positive even integers is 52.Find the integers

ankoles [38]

Answer:

The two consecutive positive integers are $4$ and $6$ .

Step-by-step explanation:

Let $x$ be an even integer, then the next even integer is $(x+2)$ .

The sum of the squares of these even integers is $52$ .

We can write the following equation and solve for $x$ .

$x^2+(x+2)^2=52$ .

We expand to get,

$x^2+x^2+4x+4=52$ .

We simplify to get,

$2x^2+4x+4-52=0$ .

This gives us,

$2x^2+4x-48=0$

We divide through by 2 to get,

$x^2+2x-24=0$ .

This is now a quadratic trinomial

We split the middle term to get,

$x^2+6x-4x-24=0$ .

We factor to obtain,

$x(x+6)-4(x+6)=0$

$\Rightarrow (x+6)(x-4)=0$

$\Rightarrow (x+6)=0 or (x-4)=0$

$\Rightarrow x=-6 or x=4$

We discard $x=-6$ since it is not a positive integer.

$\therefore x=4$

Hence the two consecutive positive even integers are,

$4$

and

$4+2=6$

5 0

3 years ago

Read 2 more answers

What fraction of a pound is eighty pence

arlik [135]

TRY TO ESTIMATE it

just to see

7 0

2 years ago

Number of Students

erma4kov [3.2K]

Answer: 15
Step-step-explanation:

4 0

2 years ago