• Move x to the other side
7y=21-3x
• Divide by 7
y = (21-3x)/7
Answer:
1.
If two angles are supplementary, their sum is 180 degrees.
Check: 10 + 170 = 180
=> Maryam's claim is correct
If two angles are complementary, their sum is 90 degrees.
Check: 81 + 9 = 90
=> Ailia's claim is correct
2.
As the definition:
Vertical angles have sides that form two pairs of opposite rays.
Adjacent angles have a common side and don't overlap.
=> As provided pair of angles, they are adjacent pair of angles.
=> Ahmed's statement is wrong, Saalem's statement is correct.
Hope this helps!
:)
<span> the product of 50 and 74 is 3,700</span>
This additition is false
the true answer is 705
Its base on my understanding:)
<h3>꧁✰_______❀Edilyn❀_______✰꧂</h3><h3 />
<em>#</em><em>C</em><em>a</em><em>r</em><em>r</em><em>y</em><em>O</em><em>n</em><em>L</em><em>e</em><em>a</em><em>r</em><em>n</em><em>i</em><em>n</em><em>g</em>
<em>#</em><em>N</em><em>o</em><em>T</em><em>o</em><em>C</em><em>o</em><em>p</em><em>y</em><em>P</em><em>a</em><em>s</em><em>t</em><em>e</em>
<h3 /><h3><em>F</em><em>o</em><em>r</em><em> </em><em>b</em><em>r</em><em>a</em><em>i</em><em>n</em><em>l</em><em>y</em><em> </em><em>u</em><em>s</em><em>e</em><em>r</em><em>:</em></h3>
<em>Just please, idols ,if we are going to answer questions here on brainly, don't do the ones from the internet, then just copy and paste </em>
<em>Just please, idols ,if we are going to answer questions here on brainly, don't do the ones from the internet, then just copy and paste You can search on the internet but make your own sentence okay? Thank you </em>
Answer:175
Step-by-step explanation:
1. Turn 28% into a decima: 0.28
2. Multiply 1250 by 0.28 to get the amount of ninth grade students:350
3. Half the amount of ninth grade students:175
