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suter [353]
3 years ago
10

middle" class="latex-formula">
Whats the simplest form of \frac{28}{40}

Will adward brainlest and a surprise winner!
Mathematics
2 answers:
Vitek1552 [10]3 years ago
8 0

Answer:

7/10

Step-by-step explanation:

28/40=

14/20 =

7/10

Mademuasel [1]3 years ago
7 0

Answer:

\frac{7}{10}

Step-by-step explanation:

40: 1, 2, 4, 5, 8, 10, 20, 40

28: 1, 2, 4, 7, 14, 28

So, you divide both quantities by the Greatest Common Divisor [GCD] of 4, giving you 7⁄10.

I am joyous to assist you anytime.

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What’s the greatest common factor of (280, 168)
Lorico [155]

Answer:

Greatest common factor of 280 and 168 is 56

-NULL

Brainliest will be appreciated thank you!

7 0
3 years ago
Use elimination to solve the system of equations
Phantasy [73]

Answer:

A (-5,2)

Step-by-step explanation:

5x+y=-23

7x-3y=-41

3×(5x+y)=3×(-23)

15x+3y=-69

<u>+</u><u>7x-3y</u><u>=</u><u>-41</u>

<u>22x</u>=<u>-110</u>

22. 22

x=-5

5x+y=-23

5(-5)+y=-23

-25+y=-23

<u>+25</u><u>.</u> <u>+25</u>

y=2

When using elimination you add both equations together so that one variable cancels out the other. In this situation, y can be the variable. You must get the y-variables to cancel out leaving just the x- variables to solve for.

6 0
3 years ago
How would you explain what a prime number is to a 3rd grader?
Citrus2011 [14]
Well....
A prime number is a number that can be divided by 1 or by itself, also having to be a whole number greater than 1. Ex. 5 can be divided by 1 or 5 so it is prime.
Hope this helps!
3 0
3 years ago
Trigonometric Identities Help
iren [92.7K]

Recall that


\sin^2\theta+\cos^2\theta=1


So we have


\sin^2\theta=1-\cos^2\theta=1-\left(\dfrac{\sqrt2}2\right)^2=1-\dfrac24=\dfrac12


So either \sin\theta=\pm\dfrac1{\sqrt2}=\pm\dfrac{\sqrt2}2.


Since \dfrac{3\pi}2, we expect \sin\theta, so we take the negative square root. Then


\sin\theta=-\dfrac{\sqrt2}2


This then means we have


\tan\theta=\dfrac{\sin\theta}{\cos\theta}=\dfrac{-\frac{\sqrt2}2}{\frac{\sqrt2}2}=-1

4 0
4 years ago
What is the surface area of the right prism 2ft 16ft 6ft
allochka39001 [22]
The answer to your problem
is 24ft
4 0
4 years ago
Read 2 more answers
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