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Ahat [919]
3 years ago
7

A bag of markers has 4 red markers, 5 blue markers, 3 yellow markers, and 3 green markers. If Maria pulls out a marker without l

ooking, what is the probability he will NOT pull out a blue marker?
Mathematics
2 answers:
dybincka [34]3 years ago
5 0

Answer:

2/3

Step-by-step explanation:

P= (4+3+3)/4+5+3+3

P=10/15

P=2/3

torisob [31]3 years ago
4 0

Answer:

2/3

Step-by-step explanation:

15/15-5/15

10/15

2/3

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Please Help!!!
Mkey [24]
The equation looks like this:

26=x*3.5+8.50

where x is the number of pen you bought.

We solve it like this:
first, we subtract 8.50 from both sides:

17.50 =3.5*x

now we divide both sides by 3.5:
5=x

so you purchased 5 pens.

3 0
3 years ago
What is the solution of StartRoot x + 12 EndRoot = x?
Ber [7]

Answer:

x = 4      or x = -3

Step-by-step explanation:

\sqrt{x+12}=x

Take square both the sides,

(\sqrt{x+12})^{2}=x^{2}\\\\x+12=x^{2}

x² - x - 12 = 0

x² - 4x + 3x - 3*4 =0

x*(x - 4) + 3*(x - 4)= 0

(x- 4 )(x+3) =0

x -4 =0   or x + 3 = 0

x = 4      or x = -3

4 0
3 years ago
Read 2 more answers
I need help with #3
MA_775_DIABLO [31]

Answer:

12

Step-by-step explanation:

divide nine by .74 and that's your answer

7 0
3 years ago
Read 2 more answers
The segments shown below could shown a triangle. true of flase
Travka [436]

Answer:

True

Step-by-step explanation:

6 0
3 years ago
Congress regulates corporate fuel economy and sets an annual gas mileage for cars. A company with a large fleet of cars hopes to
3241004551 [841]

Answer:

There is sufficient evidence that fuel economy goal has been attained.

Step-by-step explanation:

The hypothesis :

H0 : μ < 30.2

H1 : μ ≥ 30.2

The test statistic :

(xbar - μ) ÷ (s/√(n))

xbar = 32.12 ; s = 4.83 ; n = 50

Test statistic :

(32.12 - 30.2) ÷ (4.83/√(50))

1.92 ÷ 0.6830651

T = 2.811

Using the Pvalue from test statistic calculator :

Since we used the sample standard deviation, we use the T distribution

df = n - 1 = 50 - 1 = 49

Pvalue(2.811, 49) ; one tailed = 0.00354

At α = 0.05

Pvalue < α ; then we reject the null and conclude that there is sufficient evidence that fuel economy goal has been attained

4 0
3 years ago
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