Step 1 : Simplify both sides
-5(6a+21)=-15
(-5)(6a)+(-5)(21)=-15
-30a-105=-15
Step 2 : Add 105 to both sides
-30a-105+105=-15+105
-30a=90
Step 3 : Divide both sides by -30
-30a=90
—————
-30 -30
a = -3
Answer:
3.5 kilometers
Step-by-step explanation:
35000/100 = 3500
3500/1000=3.5
100 is the correct answer
<h2><em>To enlarge or reduce any shape you must begin by working out the scale factor, this is calculated by using the following formula:
</em></h2><h2><em>
</em></h2><h2><em>For an enlargement = large number ÷ small number
</em></h2><h2><em>
</em></h2><h2><em>For a reduction = small number ÷ large number</em></h2>
