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fiasKO [112]
3 years ago
5

Solve 3x + 7 > -x - 9. Show each step of your work.

Mathematics
1 answer:
Kruka [31]3 years ago
3 0

Answer:

x > -4

Step-by-step explanation:

Inequalities like these are solved the same way equations are solved, except when multiplying both sides you flip the less than/greater than sign:

3x + 7 > -x -9

3x + 7 - 7 > -x -9 -7     Subtract 7 from both sides

3x > -x -16

3x + x > -x -16 + x     add x to both sides

4x > -16

\frac{4x}{4} > \frac{-16}{4}     divide both sides by 4

x > -4

In this case the inequality sign did not have to be flipped since we never multiply both sides by a negative number.

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Can someone help me with this question
vesna_86 [32]

Answer: a (see explanation below) .b.) rhombus .c) trapezoid in USA or trapezium elsewhere in the world

Step-by-step explanation:

For  a.)  Draw a horizontal from the bottom vertex, extending 2 units to the right. Then form a triangle by connecting a line from the right end of that line up to the right angle at the top of the original triangle

8 0
3 years ago
Use the drop-down menus to justify Marlena's work in
nalin [4]

Answer: additional prop

subtraction prop

division prop

Step-by-step explanation:

6 0
3 years ago
Sam has twice as many as books as Jim. If Sam gives 12 books to Jim, they will have the same number of books. How many books do
Vsevolod [243]

Answer:

48

Step-by-step explanation:

Sam had 36 books

Jim had 12

after same gave Jim 12 books, they each had 24 books

5 0
3 years ago
Multiple Choice Suppose y varies directly as x. if y = 5 when x=8, find y when x=64
Juliette [100K]

Answer:

Step-by-step explanation:

y∞x

then

y=kx (with k as constant)

y=5 when x=8

⇒Putting this in the first equation

⇒5=k×8

⇒k=5/8

Now

y=? when x=64

Putting x=64 in the first equation

y=kx

⇒y=(5/8)×64

We get

y=40

Hope u understand

6 0
4 years ago
The graph shows the locations of a ball and a player seconds after the ball is thrown. What point could represent the player cat
svp [43]

Answer: The player is catching the ball at (4,25), therefore the second option is correct.

Explanation:

It the given graph x-axis represents the time (in seconds) after throw and y-axis represents the distance from goal (in yards).

In the graph violet and orange lines represents the distance of player and ball  respectively, from the goal at different point of time.

The player will catch the ball when the distance of player and ball from the goal is same on the single point of time.

The point of time where distance of player and ball from the goal is same, is the point of intersection of both lines.

From the graph it is clearly noticed that both lines  violet and orange insects at point (4,26), therefore player is catching the ball at (4,25), therefore the second option is correct.

3 0
3 years ago
Read 2 more answers
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