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Savatey [412]
3 years ago
8

I’m on exam so answer quick please

Mathematics
2 answers:
GarryVolchara [31]3 years ago
4 0

Answer:

13/36 or 0.361

Step-by-step explanation:

riadik2000 [5.3K]3 years ago
3 0
The answer is 0.36 or 9/25.
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HELP ME PLEASE I NEED TO PASS THIS
irga5000 [103]

Answer:

i believe the answer is D

5 0
3 years ago
Read 2 more answers
Given that a:b = 5:4 and b/c = 7:3 find: a:b:c
USPshnik [31]

a/b=5/4

a=5k

b=4k

b/c=7/3

b=7x

c=3x

b=4k

b=7x

4k=7x   =>

k=7y

x=4y

a/b/c=

=5*7*y/4*7*y/3*4*y=

=35y/28y/12y=

=35/28/12y=

=5/4/12y=

=1,25/12y=

=0.1041666666666667/ y

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8 0
3 years ago
Mica has 5.3 gallons of gas left in the tank of her car. Her car gets 30 miles to the gallon on the highway. She wants to travel
frez [133]

Answer: about 45

first since there’s 30 miles per gallon multiply 5.3 by 30 and then subtract 120 and there’s the answer

7 0
3 years ago
Read 2 more answers
How do you use a number line to solve 235+123
Novosadov [1.4K]
<span>Number line refers to a mathematical process of solving the equation with the use of lines.
=> 235 + 123
Starting from 0 you count 1 up to 235. Then starting from 235 you additionally count another 123.
Then from zero start counting the total number to the line you stopped when adding 123 to 235.

This simply equals to
=> 235 + 123
=> 358.
Pls. see attached image for illustration of number line.</span>Answer here

6 0
4 years ago
Calculating the degrees of freedom, the sample variance, and the estimated standard error for evaluations.
ki77a [65]

Answer:

The variance is  \sigma ^2  =25

Step-by-step explanation:

From the question we are told that

    The sample size is  n =  21

     The sum of squares is SS =  500

Generally the variance is mathematically represented as

           \sigma ^2  = \frac{SS}{n- 1}

substituting values

          \sigma ^2  = \frac{ 500}{21- 1}

          \sigma ^2  =25

   

4 0
3 years ago
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