Question

liliana used 4 power crystals to open 14 portals. opening the portals uses up the power. she wants to know how many portals (z) she can open with 10 power crystals. how many portals can liliana open with 10 power crystals? blank portals

Explanation:

Step1: Set up proportional equation

$\frac{4}{14} = \frac{10}{z}$

Step2: Cross-multiply to solve for z

$4z = 14 \times 10$

Step3: Calculate right-hand side

$4z = 140$

Step4: Isolate z

$z = \frac{140}{4}$

Answer:

35 portals