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77julia77 [94]
3 years ago
12

When you change fractions and mixed numbers into decimals, why is the denominator always 10, or 100

Mathematics
2 answers:
Vadim26 [7]3 years ago
6 0
So when you turn it into a decimal it has a correct place value say if you have 0.70 as a fraction it would be 70/100 because the fraction is telling you it's hundredths one tip is look at the decimal pretend it's always a 1 then in front of the decimal is all zeros and that is your denominator. Hope this helped ( :
kap26 [50]3 years ago
3 0
Because they made it that way.

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Inessa is making ice tea. She has ice cubes which she uses to cool the ice tea. Each ice cube lowers the temperature of the liqu
uranmaximum [27]

Answer:

  -12

Step-by-step explanation:

6 times -2 is -12.

_____

"Lowers by 2°" can be represented by an integer of -2.

5 0
3 years ago
9d + d + 2d - 4 = 6d<br><br> A: 2/3<br> B: -2<br> C: 2/9<br> D: -9 <br><br> Please comment
jonny [76]
<span>9d + d + 2d - 4 = 6d
Add d to 9d
10d+2d-4=6d
Add 2d to 10d
12d-4=6d
Subtract 12d from both sides
-4=-6d
Divide -6 on both sides
Final Answer: 4/6 or 2/3 *Both answers are equivalent to each other.</span>
5 0
3 years ago
Read 2 more answers
The mathematics department of a college has 6 male professors, 9 female professors, 5 male teaching assistants, and 6 female tea
Hitman42 [59]

Given:

6 male professores

9 female professores

5 male teaching assistants

6 female teaching assistants

Sol:.

N(A\text{ or B)=N(A)+N(B)-N(A and B)}

N (professors)

\begin{gathered} =6+9 \\ =15 \end{gathered}

N(Male)

\begin{gathered} =6+5 \\ =11 \end{gathered}

N(professors and male)

=6

N(professors OR male) = N(professors) + N(males) -N(professor OR male)

\begin{gathered} N(\text{ Professors OR male)=15+11-6} \\ =20 \end{gathered}

N(People to choose from)

\begin{gathered} =6+9+5+6 \\ =26 \end{gathered}

Then probablitiy is:

\begin{gathered} =\frac{20}{26} \\ =\frac{10}{13} \end{gathered}

Then the probability is 10/13

6 0
11 months ago
The end of a hose was resting on the ground, pointing up an angle. Sal measured the path of the water coming out of the hose and
lawyer [7]

Functions can be used to model real life situations.

The hose is 3.2 feet above the ground, at a horizontal distance of 4 fee

The function is given as:

f(x) =-0.3x^2 + 2x

At a horizontal distance of 4 feet, the value of x is 4

i.e. x = 4

Substitute 4 for x in f(x).

So, we have:

f(4) =-0.3(4)^2 + 2(4)

Evaluate the exponent

f(4) =-0.3(16) + 2(4)

Open both brackets

f(4) =-4.8 + 8

Add -4.8 and 8

f(4) =3.2

Hence, the hose is 3.2 feet above the ground

Read more about functions at:

brainly.com/question/10837575

7 0
2 years ago
Two planes are flying away from Toronto Pearson International Airport. The Air Canada
erica [24]

Answer:

1832 miles

Step-by-step explanation:

First we need to find the angle between the routes of the planes.

If one is N30°W and the other is S45°W, we can find the angle between the routes with the following equation:

30 + angle + 45 = 180

angle = 105°

Then, we need to find the distance travelled by each plane, using the formula:

distance = speed * time

The time is 1.5 hours, so we have that:

distance1 = 800 * 1.5 = 1200 km

distance2 = 750 * 1.5 = 1125 km

Now, to find the distance between the planes, we can use the law of cosines:

distance^2 = 1200^2 + 1125^2 - 2*1200*1125*cos(105)

distance^2 = 3356214.43

distance = 1832 miles

5 0
3 years ago
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