Question

(5.05:1/40-2.8*5/7)*0.3+1.6*0.1875

Answer 1

(5.05:1/40-2.8*5/7)*0.3+1.6*0.1875=60,3

1) 5,05÷(1/40)=(505/100)*40=202

2) 2,8*(5/7)=(28/10)*(5/7)=2

3)202-2=200

4) 200*0,3=60

5) 1,6*0,1875=0,3

6) 60+0,3=60,3

Answer 2

To evaluate the expression (5.05:1/40-2.8*5/7)0.3+1.60.1875, let's break it down step by step:

First, let's simplify the division expression 5.05:1/40:

5.05:1/40 = 5.05 / (1/40) = 5.05 * (40/1) = 5.05 * 40 = 202

Next, let's simplify the multiplication expression 2.8 * 5/7:

2.8 * 5/7 = (2.8 * 5) / 7 = 14 / 7 = 2

Now, let's substitute the simplified expressions back into the original expression:

(202 - 2) * 0.3 + 1.6 * 0.1875

Next, we'll perform the remaining multiplications:

(200 * 0.3) + (1.6 * 0.1875) = 60 + 0.3 = 60.3

Therefore, the value of the expression (5.05:1/40-2.8*5/7)0.3+1.60.1875 is 60.3.