Please help meee−2 4/5÷(−7)=
2 answers:
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Answer:
Third option
Step-by-step explanation:
Given the following question where...
A triangle adds up to 180 degrees
50 + 120 = 170 + 10 = 180
The measurement of the third angle is 10 degrees or the third option.
Hope this helps.
Answer:
y = -29/19 and x = -44/19
Step-by-step explanation:
3x + 2y = -10 multiply by -2 ⇔ -6x - 4y = 20
2x - 5y = 3 multiply by 3 ⇔ <u> 6x - 15y = 9 </u>
Add the two equation -19y = 29
y = -29/19
Use equation one and solve for x
3x + 2(-29/19) = -10
3x - 58/19 = -10
3x = -10 + 58/19
3x = -190/19 + 58/19
3x = (-190 + 58)/19
3x = -132/19
x = - 132/ 19 ÷3
x = -44/19