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mr_godi [17]
2 years ago
7

Sara hina and arsalan has rupees 930 if Sara has 7 more than Hina and arsalan has 3 times what sara has how much do they have

Mathematics
1 answer:
Papessa [141]2 years ago
3 0

Answer:

Step-by-step explanation:

Let us represent:

Number of rupees that:

Sara has = x

Hina = y

Arsalan = z

Sara,Hina and arsalan has rupees 930

x + y + z = 930..... Equation 1

if Sara has 7 more than Hina

x = y + 7

y = x - 7

Arsalan has 3 times what sara has

z = 3x

We substitute x - 7 for y and 3x for z in Equation 1

x + y + z = 930..... Equation 1

x + x - 7 + 3x = 930

5x - 7 = 930

5x = 930 + 7

5x = 937

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12000 corn seeds and 92% grew how many plants. How many plants grew. Please explain your reasoning.
Vedmedyk [2.9K]

It's 11040 plants because 92 percent of 12000 is 11040. (Idk if this is the best reasoning but :/)

4 0
3 years ago
A company is bidding on two projects, A and B. The probability that the company wins project A is 0.40 and the probability that
kondaur [170]

Answer:

Probability that the company wins project A or project B is 0.50.

Step-by-step explanation:

We are given that a company is bidding on two projects, A and B. The probability that the company wins project A is 0.40 and the probability that the company wins project B is 0.25.

Also, Winning project A and winning project B are independent events.

Let the Probability of winning project A = P(A) = 0.40

            Probability of winning project B = P(B) = 0.25

<u>Now, as we know that ;</u>

Probability that the company wins project A or project B = P(A \bigcup B)

              P(A \bigcup B) = P(A) + P(B) -  P(A \bigcap B)

So, we have to find the value of Probability of winning project A and B, i.e;

P(A \bigcap B)

<em>Since, we are given that Winning project A and winning project B are independent events which means when this condition is given then;</em>

                    P(A \bigcap B) = P(A) \times P(B)

                                    = 0.40 \times 0.25 = 0.10

Now, Probability that the company wins project A or project B is given by;

                 P(A \bigcup B) = P(A) + P(B) -  P(A \bigcap B)  

                                  = 0.40 + 0.25 - 0.10

                                  = 0.65 - 0.10 = 0.55

Hence, probability that the company wins project A or project B is 0.50.

3 0
3 years ago
B(7, 2) and C(-1,-9) are the endpoints of a line segment. What is the midpoint M of that line
Oksana_A [137]

Answer:

(3,-3.5)

Step-by-step explanation:

Mid-point formula : \frac{ x_{1} +x_{2}} {2}, \frac{y_{1}+y_{2}  }{2} \\\\x=\frac{7+(-1)}{2}         ,     y=  \frac{2+(-9)}{2} \\x= \frac{6}{2}              ,     y=  \frac{-7}{2} \\x=3                             ,    y= -3.5

Midpoint M of the line segment is (3,-3.5)

4 0
3 years ago
HELP PLEASE
Maksim231197 [3]

Answer:

0.382

0.4

option (a)

Step-by-step explanation:

Formula to calculate probability

a)

probability = number of times event occur  / total number of trials

Experimental probability of landing on white = 191/500 = 0.382

b)

probability = favourable outcome / total outcome

Theoretical probability of landing on white = 2/5 = 0.4

c)

As more trials are conducted, the experimental probability generally gets closer to the theoretical probability.

6 0
3 years ago
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