Answer:
120 milkshakes was sold that day.
Explanation:
There are mistakes in the question, so below is the corrected one:
![What\ was\ the\ total\ number\ of\ milkshakes\ that\ the\ ice\ cream\ shop\ sold \ that \ day\ ?](https://img.qammunity.org/2021/formulas/mathematics/high-school/xifg183eeme55cycqszsh5g3lzazc195w3.png)
Now, to find the total number of milkshakes that the ice cream shop sold that day.
Let the total number of milkshakes sold that day be
![x.](https://img.qammunity.org/2021/formulas/mathematics/middle-school/mmi228653dkvma4dszwy75q6dvkduzr4zg.png)
Number of vanilla milkshakes = 48.
Rate of vanilla milkshakes of the total number of milkshakes = 40%.
Now, putting an equation to get the total number of milkshakes:
![40\%\ of\ x=48](https://img.qammunity.org/2021/formulas/mathematics/high-school/lqmj295jz8n778kc89wt2buid9hp4zkom0.png)
![(40)/(100) * x=48](https://img.qammunity.org/2021/formulas/mathematics/high-school/tt8b4d2aiiu407j9mt1vngni046zzpsadd.png)
![0.40* x=48](https://img.qammunity.org/2021/formulas/mathematics/high-school/psw0quzbnq4yjanjnvmunuat6znxhr0gc2.png)
![0.40x=48](https://img.qammunity.org/2021/formulas/mathematics/high-school/i0yptkpqzfzrupn1z3h6y8tjidfyqu4hvp.png)
Dividing both sides by 0.40 we get:
![x=120.](https://img.qammunity.org/2021/formulas/mathematics/high-school/kdihp7cb6deqvx2z92hqft2wvhf28l4fc6.png)
Thus, the total number of milkshakes that the ice cream shop sold was 120.
Therefore, 120 milkshakes was sold that day.