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babunello [35]
3 years ago
15

Nicola has y marbles Sean has 25 marbles Vicky has 10 marbles a) write an expression for the total number of marbles they have b

) Find out how many marbles Nicola has
Mathematics
1 answer:
OLga [1]3 years ago
5 0
Okay so you didn’t provide enough information in the question, but I think i found the original problem online so here’s the work (assuming the total number of marbles is 55) <3

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CAN SOMEONE PLEASE HELP ME SOLVE THIS I WILL GIVE U BRAINIEST PLEASE AND THANK YOU.!
Arisa [49]

Answer:

Step-by-step explanation:

SIMPLE 30 X 30

8 0
3 years ago
In Abbys office there are 42 men. The ratio of men to women in the office is 7.5. How many women are in the office?
natima [27]
Solution to this question is, first we need to change the ratio of men to women is 7:5 y = 42y/x = 7/5
5y = 7xx = 5y/7x = (5 * 42)/ 7x = 30
The number of women in the office is 30.The answer is 30.
7 0
3 years ago
Someone pls answer this it’s so confusing lol
GenaCL600 [577]

Answer:

<h2>y = \frac{w}{h -  {2c}^{3} }</h2>

Step-by-step explanation:

w = yh - 2yc³

First of all factorize y out of the expression on the right side of the equation

That's

w = y( h - 2c³)

Next divide both sides by (h - 2c³) to make y stand alone

We have

<h3>\frac{y(h -  {2c}^{3}) }{h -  {2c}^{3} }  =  \frac{w}{h -  {2c}^{3} }</h3>

We have the final answer as

<h3>y = \frac{w}{h -  {2c}^{3} }</h3>

Hope this helps you

4 0
3 years ago
On a standardized test with a normal distribution the mean score was 67.2. The standard deviation was 4.6. What percent of the d
Reika [66]

Answer:

P ( -1 < Z < 1 ) = 68%

Step-by-step explanation:

Given:-

- The given parameters for standardized test scores that follows normal distribution have mean (u) and standard deviation (s.d) :

                         u = 67.2

                         s.d = 4.6

- The random variable (X) that denotes standardized test scores following normal distribution:

                         X~ N ( 67.2 , 4.6^2 )

Find:-

What percent of the data fell between 62.6 and 71.8?

Solution:-

- We will first compute the Z-value for the given points 62.6 and 71.8:

                          P ( 62.6 < X < 71.8 )

                          P ( (62.6 - 67.2) / 4.6 < Z < (71.8 - 67.2) / 4.6 )

                          P ( -1 < Z < 1 )

- Using the The Empirical Rule or 68-95-99.7%. We need to find the percent of data that lies within 1 standard about mean value:

                          P ( -1 < Z < 1 ) = 68%

                          P ( -2 < Z < 2 ) = 95%

                          P ( -3 < Z < 3 ) = 99.7%

6 0
3 years ago
Me gustaría saber la respuesta
Art [367]

Answer:

es 2 denada......

6 0
3 years ago
Read 2 more answers
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