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Annette [7]
3 years ago
7

If 84 cookies will serve 24 students, how many cookies are needed for 30 students ?

Mathematics
2 answers:
Basile [38]3 years ago
7 0

Answer: 105


Step-by-step explanatio: each student gets 3 and a half cookies 3.5 cookies times 30 equals 105


allsm [11]3 years ago
6 0
105 cookies
84 \div 24 = 3.5
3.5 \times 30 = 105
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What is the solution to the system of equations? Use the substitution method.
aleksandrvk [35]
{ y = 3 x - 4
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Subsititute y = 3x-4 :

[ 9 x - 3 ( 3 x-14 )=14]

Refine:

9 x  - 3 ( 3 x - 4 ) = 14

- 2 = 0

is false , therefore the system of equations has no solution

Answer A

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3 years ago
Peter is trying to buy fencing for the perimeter of his garden. His garden is in the shape of a rectangle with a length of 2(x+6
RideAnS [48]

Given dimensions of a rectangular garden are:

length = 2(x+6) feet

width = 3.5x feet

using the distributive property on length we get, length = 2x+12

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Solving it we get,

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4 0
3 years ago
1.) The commuter trains on the Red Line for the Regional Transit Authority (RTA) in Cleveland, OH, have a waiting time during pe
alisha [4.7K]

Answer:

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X \sim Unif(a=0,b=8)

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Step-by-step explanation:

Part a

For this case we define the random variable as X ="waiting time during peak hours" and we know that this distribution follows an uniform distribution:

X \sim Unif(a=0,b=8)

Where a and b represent the limits of the distribution.

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For this case the density function would be given by:

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And the height for this case would be 0.125

And f(x)= 0  for other case.

The cumulative distribution function would be given by:

F(x) = 0, x

F(x) = \frac{x-a}{b-a}= \frac{x}{8}, 0\leq x < 8

F(x) = 1, x\geq 8

3 0
2 years ago
Fine the value of a in the image below.​
telo118 [61]

Answer:

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Answer:
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