Answer:
35
Step-by-step explanation:
Using proportions, you are correct:
70/x = 100/50
cross multiply
100x = 3500
divide both sides by 100 to get your answer.
Answer:
12 cm²
Step-by-step explanation:
Length of rectangle = 5.6 cm
Width of rectangle = 2.1 cm
Area of rectangle = Length of rectangle×Width of rectangle
⇒Area of rectangle = 5.6×2.1
⇒Area of rectangle = 11.76 cm²
11.76 has 4 significant figures in order to write this term in 2 significant terms we round of the term
The last digit in the decimal place is 6. Now, 6≥5 so we round the next digit to 8 we get
11.8
Now the last digit in the decimal place is 8. Now, 8≥5 so we round the next digit to 2 we get
12
∴ Hence the area of the rectangle when rounded to 2 significant figures is 12 cm²
<h2>
Answer:
</h2>
20 x + 500 y cents
<h2>
Step-by-step explanation:
</h2>
20 x cents already given in question
converting 5 y dollars into cents (1 dollar=100 cents, 5 dollars =500 cents)
5 y dollars =500 y cents
20 x cents+500 y cents
20 x + 500 y cents
Answer:
97.7 %
Step-by-step explanation:
TWO standard deviations above the mean
z - score = 2 corresponds to .9772 97.7 %