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deff fn [24]
4 years ago
6

What is the difference 14/15 - 5/12 written as a decimal?

Mathematics
2 answers:
ioda4 years ago
6 0
14/15 - 5/12
= (168-73)/ (15*12)
= 93/180
= 31/60
= 0.5166666667
stiv31 [10]4 years ago
5 0
14/15 - 5/12 

Common denominator is 60.

\frac{4 * 14}{4 * 15} -  \frac{5 * 5}{5 * 12}

56/60 - 25/60

= 31/60 as fraction.
= 0.516 as decimal.

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Hi hi. I have a legit question now.
pochemuha

Answer:

A. 25.14%

B. 0.99%

C. 100%

D. 86.07%

Step-by-step explanation:

μ = 52, σ = 3

Each problem gives you an x value and asks you to find a probability.  First calculate the z score(s), then look up in a table or use a calculator.

z = (x − μ) / σ

A. Find P(x < 50)

z = (50 − 52) / 3

z = -0.67

P(z < -0.67) = 0.2514

B. Find P(x > 59)

z = (59 − 52) / 3

z = 2.33

P(z > 2.33) = 1 − 0.9901 = 0.0099

C. Find P(x > 40)

z = (40 − 52) / 3

z = -4

P(z > -4) = 1 − 0 = 1

D. Find P(48 < x < 57)

z₁ = (48 − 52) / 3

z₁ = -1.33

z₂ = (57 − 52) / 3

z₂ = 1.67

P(-1.33 < z < 1.67) = 0.9525 − 0.0918 = 0.8607

I used a z score table.  For more accurate answers, use a calculator.

8 0
3 years ago
Angie and Irene had the same amount of money at first.At a shopping mall, Angie spent $2595 while Irene spent $297.Irene then ha
Fantom [35]

Answer:

Irene had $3744 at first.

Step-by-step explanation:

Let Angie and Irene had the money initially = $a

At a shopping mall Angie spent money = $2595

Money left with Angie = $(a - 2595)

Similarly, Irene spent the money = $297

Money left with Irene = $(a - 297)

Money left with Irene was thrice as much as Angie,

(a - 297) = 3(a - 2595)

a - 297 = 3a - 7785

3a - a = 7785 - 297

2a = 7488

a = \frac{7488}{2}

a = $3744

Therefore, Irene had $3744 at first.

7 0
3 years ago
Keisha is walking around a track that is 400 yards Long. she has walked around the track 5 times so far. how many more yards doe
Natalija [7]
Keisha would have to walk 3520 yards to complete the 2 miles.

I hope this helps!
5 0
3 years ago
At a​ school, 129 students play at least one sport. This is 30​% of the students at the school. How many students are at the​ sc
kkurt [141]
129/x=30/100
30x=12900
x=430
430 students
3 0
4 years ago
Help asap for brainliest
sineoko [7]

Answer:

282 ft

Step-by-step explanation:

Area of 2 triangles = 6+6

= 12 ft

Area of 3 rectangles = 90+90+90

= 270 ft

therefore

the surface area = 12 + 270

= <u>282 ft</u>

I think that I am right

4 0
3 years ago
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