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arlik [135]
3 years ago
13

Simplify: 1/5(-16-9) + 4^2 ÷8​

Mathematics
1 answer:
enot [183]3 years ago
8 0

Answer:

-3

Step-by-step explanation:

you start with the parentheses -16-9 turns into -16 + (-9)

and then you try to solve everything.

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4x - 3y = 12<br> 4x - 5y = -4<br> Solve using Elimination
mr_godi [17]

Answer:

{ \rm{4x - 3y = 12 -  -  -  \{eqn(a) \}}} \\ { \rm{4x - 5y =  - 4 -  -  -  \{eqn(b) \}}}

• subtract eqn(b) from eqn(a);

{ \underline{ \rm{  - \binom{4x - 3y = 12}{4x - 5y =  - 4} }}} \\ { \rm{0x + 2y = 16}} \\  \\ { \rm{2y = 16}} \\  \\ { \boxed{ \tt{ \:  \: y = 8 \:  \:   }}} \\

• find x :

{ \rm{4x - 3y = 12}} \\ { \rm{4x - 3(8) = 12}} \\ { \rm{4x = 36}} \\  \\ { \boxed{ \tt{ \:  \: x = 9 \:  \: }}}

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2 years ago
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Can the sides of a triangle have lengths 2, 7, and 8?
Natalka [10]

Answer:

Yes

Step-by-step explanation:

As long as any two numbers added are greater than the number not chosen they can make a triangle

2+7= 9     9 is greater than 8

8+2= 10    10 is greater than 7

7+8= 15 .  15 is greater than 2

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3 years ago
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AleksandrR [38]

Answer:

3X x 5 = 15x - 3 = 12x

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0.75 - (1-0.35) or 0.75 - 1 + 0.35
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Where is the table?
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