Answer:The height of the building is 30ft
Step-by-step explanation:
(j/2) + 7 = -12 // Given
(j/2) + 7 - 7 = -12 - 7 // Subtraction Property of Equality
(j/2) = -19 // Simplify
(j/2) • 2 = -19 • 2 // Multiplication Property of Addition
j = -38
If you have any questions about the process, let me know
Answer:
Step-by-step explanation:
<u>Let the capacity of tank is x</u>
- 1/5x + 9 = 7/10x
- 2/10x + 9 = 7/10x
- 5/10x = 9
- 1/2x = 9
- x = 18 gallons
<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>