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meriva
2 years ago
7

the coach mixes 15 scoops of powder with 2 gallons of water to make a sports drink for his team how many scoops of powder does t

he coach need to mix with 10 gallons of water
Mathematics
2 answers:
Vinil7 [7]2 years ago
4 0

Answer:

75 scoops

Step-by-step explanation:

since 2 gallons=15 scoops

we divide 10 by 2=5 gallons

scoops=15x5=75

weqwewe [10]2 years ago
3 0

Answer:

your anwser is 75 cups

Step-by-step explanation:

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. At a clothing store, 12 people purchased blue sweaters, 8 purchased green sweaters, 4 purchased gray sweaters, and 7 purchased
DedPeter [7]

Answer:

The probability that they purchased a green or a gray sweater is \frac{12}{31}

Step-by-step explanation:

Probability is the greater or lesser possibility of a certain event occurring. In other words, probability establishes a relationship between the number of favorable events and the total number of possible events. Then, the probability of any event A is defined as the quotient between the number of favorable cases (number of cases in which event A may or may not occur) and the total number of possible cases. This is called Laplace's Law.

P(A)=\frac{number of favorable cases}{number of possible cases}

The addition rule is used when you want to know the probability that 2 or more events will occur. The addition rule or addition rule states that if we have an event A and an event B, the probability of event A or event B occurring is calculated as follows:

P(A∪B)= P(A) + P(B) - P(A∩B)

Where:

P (A): probability of event A occurring.

P (B): probability that event B occurs.

P (A⋃B): probability that event A or event B occurs.

P (A⋂B): probability of event A and event B occurring at the same time.

Mutually exclusive events are things that cannot happen at the same time. Then P (A⋂B) = 0. So, P(A∪B)= P(A) + P(B)

In this case, being:

  • P(A)= the probability that they purchased a green sweater
  • P(B)= the probability that they purchased a gray sweater
  • Mutually exclusive events

You know:

  • 8 purchased green sweaters
  • 4 purchased gray sweaters
  • number of possible cases= 12 + 8 + 4+ 7= 21

So:

  • P(A)=\frac{8}{31}
  • P(B)=\frac{4}{31}
  • P(A⋂B) = 0

Then:

P(A∪B)= P(A) + P(B)

P(A∪B)= \frac{8}{31}+ \frac{4}{31}

P(A∪B)= \frac{12}{31}

<u><em>The probability that they purchased a green or a gray sweater is </em></u>\frac{12}{31}<u><em></em></u>

5 0
3 years ago
Ryan can complete 3 math problems in 10 minutes. How many math problems can Ryan complete in 2 hours at this rate?
nika2105 [10]

Answer:36

Step-by-step explanation:

you do 3 / 10 then multiply by 120

4 0
3 years ago
Read 2 more answers
Steph bought a used bicycle, restored it, and then marked it up 1/4 of the price she paid. Later she sold it for the marked up p
Lapatulllka [165]

Price she paid, P = $80 .

She sells the bicycle at 1/4 of the price she paid.

Let, buying price is x.

So, as given in question selling price will be x/4.

Also, selling price is given as $80 .

\dfrac{x}{4}=80\\\\x = \$320

Therefore, Steph pay $320 for the bicycle.

Hence, this is the required solution.

4 0
3 years ago
What equation represents the line that passes through the points (-3,7) and (9,-1)
Alex Ar [27]

The point-slope form:

y-y_1=m(x-x_1)

m - slope

(x₁, y₁) - point

The formula of a slope:

m=\dfrac{y_2-y_1}{x_2-x_1}

We have the points (-3, 7) and (9, -1). Substitute:

m=\dfrac{-1-7}{9-(-3)}=\dfrac{-8}{12}=-\dfrac{2}{3}

y-7=-\dfrac{2}{3}(x-(-3))\\\\\boxed{y-7=-\dfrac{2}{3}(x+3)}      <em>point-slope form</em>

\boxed{y=-\dfrac{2}{3}x+5}        <em>slope-intercept form</em>

\boxed{2x+3y=15}       <em>standard form</em>

6 0
3 years ago
Help help help help
Minchanka [31]

Answer:

abc is a triangle so ,

a is ( 9,6 )

b is ( 9,3 )

and c is ( 3,3 )

3 0
3 years ago
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