What is the most useful about mathematics for human kind?

1 answer:

6 0

It's useful so when you go to the grocery store you know how much of whatever you need and you can multiply, divide, and subtract if needed. Without mathematics we wouldn't be able to calculate things. If you're a cashier for example, you need to know how to count change and count the money the person gives you. If you're a customer, you need to know how much to give the cashier and that involves mathematics. I hope this helped!!!

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The label on the cars antifreeze container claims to protect the car between -30C and 130C. To convert Celsius temperature to Fa

RideAnS [48]

C = 5/9(F - 32)

C = -30
-30 = 5/9(F - 32)
-30 = 5/9F - 160/9
-30 + 160/9 = 5/9F
-270/9 + 160/9 = 5/9F
-110/9 = 5/9F
-110/9 * 9/5 = F
- 990/45 = F
- 22 = F

C = 5/9(F - 32)
C = 130

130 = 5/9F - 160/9
130 + 160/9 = 5/9F
1170/9 + 160/9 = 5/9F
1330/9 = 5/9F
1330/9 * 9/5 = F
11970/45 = F
266 = F

So in Fahrenheit temp, the the car is protected between -22 F and 266 F

4 0

2 years ago

Read 2 more answers

Helppppppoppp please 10 points !!!

Evgesh-ka [11]

Answer:

2x+27+x+27=180

3x+54=180

3x=180-54

x=126/3

x=42

angle B=x+27