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3 years ago

You do not need to flip the inequality sign when solving the following -5 ≤ 4r + 3.

2 answers:

7 0

Yes.

For inequality equation, you only flip the sign when you divide a negative number into both sides, here you will divide 4 on each side, so you won't flip the sign.

-Dominant- [34]3 years ago

7 0

the answer is true

do i get a prize?

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3 years ago

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Please answer this correctly without making mistakes

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3 years ago

11. What is the value of xin the solution to this system of equations?

Sedbober [7]

Answer:

x = ¹³⁄₂

y = ⁻¹⁄₂

Explanation:

$\bold{\begin{bmatrix}3x-5y=22\\ y=-5x+32\end{bmatrix}}$

Substitute y = -5x + 32

$\bold{\begin{bmatrix}3x-5\left(-5x+32\right)=22\end{bmatrix}}$

Simplify

$\bold{\begin{bmatrix}28x-160=22\end{bmatrix}}$

Isolate x for 28x - 160 - 22: x = ¹³⁄₂

$\bold{\mathrm{For\:}y=-5x+32}$

Substitute x = ¹³⁄₂

$\bold{y=-5\cdot \frac{13}{2}+32}$

-5 · ¹³⁄₂ + 32 = ⁻¹⁄₂

y = ⁻¹⁄₂

x = ¹³⁄₂

y = ⁻¹⁄₂

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