Answer:
-3
Step-by-step explanation:
-7x=-2x+15
collect like terms
-7x+2x=15
-5x=15
divide both sides by -5
x=15/-5
x=-3
Dear Brainly User,
Your answer is <em>100 g of Au-198 would have a half life of 2.7 </em><em>day.</em>
<em> </em><em> </em><em> </em><em>Hope </em><em>it</em><em> helped</em><em>.</em><em>.</em><em>.</em><em> </em><em>pls </em><em>mark</em><em> brainliest</em>
Answer:
Angle J <em>is</em><em> </em><em>congruent</em><em> </em><em>to</em><em> </em>Angle G
Answer:
42 men are in the dance recital.
Step-by-step explanation:
Answer:
The width of the garden is 99 feet.
Step-by-step explanation:
Given: The perimeter is 306 ft.
Given: the length of the garden is 99 ft.
Step 1: Because the garden is rectangular and so 2 of its sides are the lengths, we must multiply 99 by 2. 99x2=108.
Step 2: To find out the 2 remaining sides of the garden (the widths), we must subtract the perimeter by the lengths. 306-108=198.
Step 3: Because there are 2 sides which are the widths, we know that they are each equal and add up to 198. To find out how long the width is, we must divide the 2 widths by 2. 198/2=99.
So, the width of the garden is 99 feet.