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neonofarm [45]
3 years ago
7

How are integers and rational numbers the same ?

Mathematics
2 answers:
SIZIF [17.4K]3 years ago
8 0

Answer:

an integer is a rational number

Step-by-step explanation:

Alexandra [31]3 years ago
3 0

Answer:

Every integer is a rational number, since each integer n can be written in the form n/1. For example 5 = 5/1 and thus 5 is a rational number. However, numbers like 1/2, 45454737/2424242, and -3/7 are also rational, since they are fractions whose numerator and denominator are integers.

Step-by-step explanation:

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Darya [45]
For the first one you just add the all the d together 5d+9d=14d and the c stays at 4 because there are no other c terms so it's 14d+4c
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6 0
3 years ago
The measure of angle 3 is 42°. What is the measure of angle 1 in degrees?
netineya [11]

Answer:

measure of angle 1

= 180° - 90° - 42°

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7 0
3 years ago
What is the volume of a cube with a side length of 3 units?
Makovka662 [10]

Answer:

Option C will be your answer

Step-by-step explanation:

hope it helps you

have a great day!!

7 0
3 years ago
      A light plane flew from its home base to an airport 255 miles away. With a head wind, the trip took 1.7 hours. The return
ryzh [129]
The speed from home base to airport was:
v=255miles/1.7h\ /:1.7\\v=150mph
The speed from airport to home base was:
v=255miles/1.5h\ /:1.5\\v=170mph
Average speed of plane was:
\frac{170mph+150mph}{2}=160mph
Average speed of wind was:
x\ -\ wind\ speed\ (mph)\\150+x=170-x\ /+x\\150+2x=170\ /-150\\2x=20\ /:2\\x=10
Answer: Average speed of plane was 160mph and average speed of wind was 10mph.

I hope I helped :D
6 0
4 years ago
Read 2 more answers
Solve the system of equations by finding the reduced row-echelon form of the augmented matrix for the system of equations.
hram777 [196]

Write the system in augmented-matrix form:

\left[\begin{array}{ccc|c}2&2&4&16\\5&-2&3&-1\\1&2&-3&-9\end{array}\right]

Multiply through row 1 by 1/2:

\left[\begin{array}{ccc|c}1&1&2&8\\5&-2&3&-1\\1&2&-3&-9\end{array}\right]

Add -1(row 1) to row 3, and add -5(row 1) to row 2:

\left[\begin{array}{ccc|c}1&1&2&8\\0&-7&-7&-41\\0&1&-5&-17\end{array}\right]

Swap rows 2 and 3:

\left[\begin{array}{ccc|c}1&1&2&8\\0&1&-5&-17\\0&-7&-7&-41\end{array}\right]

Add -7(row 2) to row 3:

\left[\begin{array}{ccc|c}1&1&2&8\\0&1&-5&-17\\0&0&-42&-160\end{array}\right]

Multiply through row 3 by -1/42:

\left[\begin{array}{ccc|c}1&1&2&8\\0&1&-5&-17\\0&0&1&\frac{80}{21}\end{array}\right]

Add 5(row 3) to row 2:

\left[\begin{array}{ccc|c}1&1&2&8\\0&1&0&\frac{43}{21}\\0&0&1&\frac{80}{21}\end{array}\right]

Add -1(row 2) and -2(row3) to row 1:

\left[\begin{array}{ccc|c}1&0&0&-\frac53\\0&1&0&\frac{43}{21}\\0&0&1&\frac{80}{21}\end{array}\right]

So the solution to the system is

x=-\dfrac53,y=\dfrac{43}{21},z=\dfrac{80}{21}

7 0
4 years ago
Read 2 more answers
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