Step-by-step explanation:
x + y = 72
x - y = 40
x = y + 40
so, the first equation is then
y + 40 + y = 72
2y + 40 = 72
2y = 32
y = 16
x = y + 40 = 16 + 40 = 56
Answer: A measure of one degree ( 1 ° ) is equivalent to a rotation of 1 360 of a complete revolution. To measure angles, it is convenient to mark degrees on the circumference of a circle .
Answer:
<span>−84</span>
Explanation:
Let x be the unknown number.
From the queston we can form the equation
<span><span>x<span>(−7)</span></span>−2=10</span>
Move <span>−2</span> to the right hand side
<span><span><span>x<span>(−7)</span></span>=10+2</span><span><span>x<span>(−7)</span></span>=12</span></span>
Multiply both sides by <span>−7</span> to get the unkonwn no.
<span><span><span>−7</span>⋅<span>x<span>(−7)</span></span>=12⋅<span>(−7)</span></span><span>
x=−84</span></span>
Hope this helps
Answer:
$13
Step-by-step explanation:
Let's set up a ratio...
2:3.25
8:x
We know 2*4 is 8 so we need to multiply 3.25 by 4 to get x...
3.25*4=$13
Answer:
the difference is -46 degrees
Step-by-step explanation:
