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inessss [21]
2 years ago
8

Alex made 135 out of 540 cookies for the bake sale. What percent of cookies did Alex make for the bake sale?

Mathematics
1 answer:
dsp732 years ago
4 0

Answer:

c) 25%

Step-by-step explanation:

135÷540=0.25

so 25%

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A 6 sided number cube is tossed. what is the probability of rolling a 6 or an odd number?
Veronika [31]
For any probability the formula is P_{desired}=\frac{desired}{total}. In this case we have 4 desired outcomes (the odds, 1, 3 and 5, and also 6) out of 6 total sides, so our probability P_{oddor6} =\frac{odd or 6}{total sides}=\frac{4}{6} = \frac{2}{3}.

Mutually exclusive means the events cant occur at the same time. In our case it is not possible to roll both a 6 and an odd number at the same time since 6 is even. Therefore the events ARE mutually exclusive. 

Combine the two parts and C is the correct answer.  <span />
3 0
3 years ago
Paul is saving for a down payment to buy a house. The account earns 13% interest compound quarterly, and he wants to have $15,00
Tatiana [17]

Answer:

The principal must be = $8991.88

Step-by-step explanation:

Formula for compound interest is:

A = P(1 + \frac{r}{n})^{nt}

Where A is the amount after 't' years.

P is the principal amount

n is the number of times interest is compounded each year.

r is the rate of interest.

Here, we are given that:

Amount, A = $15000

Rate of interest = 13 % compounded quarterly i.e. 4 times every year

Number of times, interest is compounded each year, n = 4

Time, t = 4 years.

To find, Principal P = ?

Putting all the given values in the formula to find P.

15000 = P(1 + \frac{13}{400})^{4\times 4}\\\Rightarrow 15000 = P(1 + 0.0325)^{16}\\\Rightarrow 15000 = P(1.0325)^{16} \\\Rightarrow 15000 = P \times 1.66817253\\\Rightarrow P = \dfrac{15000}{1.66817253}\\\Rightarrow P \approx \$8991.88

So, <em>the principal must be = $8991.88</em>

4 0
3 years ago
Mrs. gomes found that 40% of students at her high school take chemistry. she randomly surveys 12 students. what is the probabili
andrew-mc [135]

Answer:

0.213

Step-by-step explanation:

→ Convert into binomial information

x ~ B ( 12 , 0.4 )

→ Write down probability required

p ( x = 4 )

→ Evaluate

0.2128

5 0
2 years ago
I need all the spaces filled in please :)
Artist 52 [7]

Answer:

3x + y = -16      

Step-by-step explanation:

<u><em>Explanation:-</em></u>

Given a system of equations are

        5x+6y =-5  

       - 2x  - 5y = -11

multiply '1' and Adding two system of equtions

                 + 1      (5x   +  6y   =  -5)

                + 1      (<u> -2x    -   5y  =   -11)</u>

                   <u>       3x    +    y   = -16           </u>

<u>Final answer:-</u>

                          5x   +  6y   =  -5

                        <u> -2x    -   5y  =   -11</u>

                   <u>       3x    +    y   = -16           </u>

<u />

7 0
3 years ago
36 is the same as _____ radians.
Over [174]
The formula is (degree)x(pi÷180)
36 x pi ÷ 180
0.63 rad
6 0
3 years ago
Read 2 more answers
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