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3 years ago

make a list of 25 different integer calculations that equal 36 including addition, subtraction, multiplication, and division

1 answer:

6 0

This is very easy :)

1+35
2+34
3+33
4+32
5+31
6+30
7+29
8+28
9+27
10+26
37-1
38-2
39-3
40-4
41-5
42-6
43-6
44-7
45-8
49-9
50-10
72/2
36-2
12*3
9*4
√1296

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What is the probability that 4 randomly selected people all have different birthdays? Ignore leap years, and round your final an

Flauer [41]

Answer:

(D)0.9836

Step-by-step explanation:

There are 365 days in a year.

Since each person has a different birthday:

We can choose a birthday for the first person 365 out of 365 days.
We can choose a birthday for the second person 364 out of 365 days.
We can choose a birthday for the third person 363 out of 365 days.
We can choose a birthday for the fourth person 362 out of 365 days.

Therefore,

P(4 randomly selected people all have different birthdays)

$=\dfrac{365}{365} \times \dfrac{364}{365} \times \dfrac{363}{365} \times \dfrac{362}{365}\\\\=0.9836$

8 0

3 years ago

Gabriella plays video games from 2:49 P.M. To 3:32 P.M. Mason plays video games for 35 minutes. How many minutes longer does Gab

Mekhanik [1.2K]

Answer:

Mizuki here to help!

8 minutes longer will be the correct answer!

Step-by-step explanation:

First, let's find out how many minutes Gabriella played:

3:32 - 2:49 = 2:92 - 2:49 = 0:43

Check:

2:49 + 0:43 = 2:92 = 3:32

It's correct so...

43 - 35 = 8

Hope this helped!

3 0

4 years ago

Ella completed the following work to test the equivalence of two express

murzikaleks [220]

Answer:

The expressions are not equivalent because Ella did not know that you can’t use substitution to test for equivalence.

Step-by-step explanation:

Equivalent algebraic expressions are those expressions which on simplification give the same resulting expression.

Two algebraic expressions are said to be equivalent if their values obtained by substituting any values of the variables are same.

Two expressions 3f+2.6 and 2f+2.6 are not equivalent, because when f=1,

$3f+2.6=3\cdot 1+2.6=3+2.6=5.6\\ \\2f+2.6=2\cdot 1+2.6=2+2.6=4.6\\ \\5.6\neq 4.6$

Method of substitution can only help her to decide the expresssions are not equivalent, but if she wants to prove the expressions are equivalent, she must prove it for all values of f.

$3f+2.6=2f+2.6\\ \\3f=2f\\ \\3f-2f=0\\ \\f=0$

This is true only when f=0.

Hence,

The expressions are not equivalent because Ella did not know that you can’t use substitution to test for equivalence.

5 0

3 years ago

Read 2 more answers

Shawna rented a bike from arjuns bikes. it cost $14 plus $3 per hour. if shawna paid $32 then she rented the bike for how many h

spayn [35]

If it’s $14.00 upfront and 3 dollars per hour, subtract 14 from 32, which is 18, and divide that by 3, which is 6. She rented the bike for 6 hours.

5 0

4 years ago

A student scored 84 and 87 on her first two quizzes.Write and solve a compound inequality to find the possible values for a thir

Varvara68 [4.7K]

Mean of data = sum of values ÷ number of data

We have three values; 84, 87, and $x$

Sum of values = $84+87+x$ = $171+x$

We want the value of $x$ to give mean between 85 and 90 inclusive

$85 \leq \frac{171+x}{3} \leq 90$
$85*3 \leq 171+x \leq 90*3$
$255 \leq 171+x \leq 270$
$255-171 \leq x \leq 270-171$
$84 \leq x \leq 99$

Hence, the value of $x$ is between 84 and 99 inclusive

8 0

3 years ago

Read 2 more answers