Let
x--------> amount of erasers that Sari has
y--------> amount of erasers that Sam has
we know that
-------> equation 
-----> equation 
Substitute equation in equation
![[3y]+y=28\\ 4y=28\\ y=28/4\\ y=7](https://tex.z-dn.net/?f=%20%5B3y%5D%2By%3D28%5C%5C%204y%3D28%5C%5C%20y%3D28%2F4%5C%5C%20y%3D7%20)
find the value of x
therefore
the answer is
Sari has 
erasers
Answer: second option -300+150+(-50)
Explanation:
She going down, the value is negative. When going up, the value is positive. So when the swimmer swims down 300 feet, the value is negative. Then he goes up 150 ft, which makes the value positive. Finally, he swims down 50 ft, so the valued is negative.
<span> <span><span> <span> <span> <span><span> <span> This is easy all you have to do is fill in the chart on the pdf. here I did it but you have to fill it in on your own. So just go from left to right starting at the top and fill it in, all except the dates which I didn't do.Hope this helped :)<span>
<span><span>
<span> Date, </span>
<span>
High, Temperature
</span>
<span>
Subtract current temperature minus previous temperature,</span><span>Difference, </span>
<span>
Low Temperature, </span>
<span>
Subtract current temperature minus previous temperature, </span>
<span>
Difference, </span>
</span>
<span>
<span>
</span>
<span>
93, </span>
<span>
-N/A-, </span>
<span>
-N/A- ,</span><span>
87, </span>
<span>
-N/A-, </span>
<span>
-N/A-, </span>
</span>
<span>
<span>
</span>
<span>
90 ,</span><span>
93-90=, </span>
<span>
-3 ,</span><span>
79, </span>
<span>
79-87, </span>
<span>
-8 ,</span></span><span><span>
</span>
<span>
93, </span>
<span>
93-90, </span>
<span>
3, </span>
<span>
81 ,</span><span>
81-79, </span>
<span>
2 ,</span></span><span><span>
</span>
<span>
91 ,</span><span>
91-93, </span>
<span>
-2 ,</span><span>
81 ,</span><span>
81-81, </span>
<span>
0, </span>
</span>
<span>
<span>
</span>
<span>
91, </span>
<span>
91-91, </span>
<span>
0, </span>
<span>
79, </span>
<span>
79-81, </span>
<span>
-2, </span>
</span>
<span>
<span>
</span>
<span>
95, </span>
<span>
95-91, </span>
<span>
4 ,</span><span>
79 ,</span><span>
79-79, </span>
<span>
0 ,</span></span><span><span>
</span>
<span>
95, </span>
<span>
95-95, </span>
<span>
0, </span>
<span>
79, </span>
<span>
79-79, </span>
<span>
0.</span></span></span></span><span><span><span><span><span><span><span><span>
</span> <span>
</span></span><span> </span> </span></span></span></span> </span></span></span></span> </span></span></span></span> </span></span>
Answer:
<u>27 cm²</u>
Step-by-step explanation:
Shaded Area = Area ABCE - Area AED
- S.A. = 6 x 6 - 1/2 x 3 x 6 [DE = 1/2AB = 1/2 X 6 = 3]
- S.A. = 36 - 9
- S.A. = <u>27 cm²</u>
