Hey there! I think the answer is x=(-2)
I would use the fact that everything involves math. sleeping, eating, walking, running, brushing your teeth, playing games, the matters are endless because it really just uses angles and how long you’ve been doing an activity.
−<span>2.8
</span>Okay so "0.9x-1.3=-3.1" x=-2
<span><span><span>0.9x</span>−1.3</span>=<span>−3.1
</span></span>add 1.3 to both sides
<span><span><span><span>0.9x</span>−1.3</span>+1.3</span>=<span><span>−3.1</span>+1.3
</span></span><span><span>0.9x</span>=<span>−1.8
</span></span>divide both sides by 0.9
<span><span><span>0.9x/</span>0.9</span>=<span><span>−1.8/</span><span>0.9
</span></span></span>x=<span>−2</span>
So if you plug in -2 into "x-0.8" you get −2.8
<span>=<span><span>−2</span>−0.8
</span></span><span>=<span><span>−2-</span><span>0.8
</span></span></span><span>=<span>−2.8
</span></span>Hope this helps.
Answer:
W.
Step-by-step explanation:
I am not sure how to explain it but you follow the chart and see if it matches up with the numbers.
easy peasy
$3 divide by 4 smoothies to give you the price of each individual smoothie
comes out to .75 cents
now 9 times .75 cents equals 6.75 plus .75 cents because she bought a smoothie for herself
comes out to be $7.50
