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3 years ago

S+9>or equal to -25..........

Mathematics

1 answer:

Alexandra [31]3 years ago

7 0

Answer:

$s \geqslant - 34$

Step-by-step explanation:

$s + 9 \geqslant - 25 \\ s \geqslant - 25 - 9 \\ s \geqslant - 34$

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Donnel practiced the piano 3 hours longer than Marcus. Together they practiced the piano for 11 hours. How many hours did each b

andriy [413]

Here is the equation: $x+(x+3)=11$ ⇒ $x+x+3=11$

You need to get "x" by itself so minus 3 from each side

$x+x+3-3=11-3$ ⇒ $x+x=8$ ⇒ $2x=8$

Divide 8 by 2

$8$ ÷ $2=4$

x=4

So each 4 is equivalent to 4

Lets check:

$4+(4+3)=11$ ⇒ $4+4+3=11$ ⇒ $11=11$

So that means that Marcus practiced the piano for 4 hours and Donnel practiced for 7

4 0

3 years ago

If There was a game and the game cost 130$ and you only have 53$ what would you do to find the amswer

anygoal [31]

Answer:

130-53= $77

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

(30 points)

Pani-rosa [81]

The vertices of the triangle are the points where any pair of lines intersect.

We start by setting up the system

$\begin{cases}y=-x+2\\y=2x-1 \end{cases} \iff -x+2=2x-1 \iff 3x=3 \iff x=1$

Using one of the two equations we can derive the correspondent y value:

$f(x)=-x+2 \implies f(1)=-1+2 = 1$

So, one vertex is (1, 1)

We choose the other two pairs of lines to find the other vertices:

$\begin{cases}y=-x+2\\y=x-2 \end{cases} \iff -x+2=x-2 \iff x=2 \implies y = 0$

$\begin{cases}y=x-2\\y=2x-1 \end{cases} \iff x-2=2x-1 \iff x=-1 \implies y=-3$

So, the three vertices are (1, 1), (2, 0), (-1, -3).

8 0

3 years ago

Write an equation that has ONE SOLUTION to the equation: y=5x+3

Aneli [31]

Answer:(0,3)

Step-by-step explanation:

8 0

3 years ago

Celeste wants to have her hair cut and permed and also go to lunch. She knows she will need $77. The perm costs twice as much as

UkoKoshka [18]

2x+5=77.
-5. -5
2x. = 72
2. 2
x= 36

to check all you do is plug in 36 into x
so you get 2(36)+5 which equals 77.

2x is the permed
5 is for lunch
77 total money they have

3 0

3 years ago