Answer:
14
Step-by-step explanation:
630÷45=14
For this case, the first thing you should know is that a number in scientific notation is a number of the form:
Where,
a: is a number between 1 and 10
b: is the exponent of the scientific notation.
We have then that the number that is in scientific notation written correctly is:
Answer:
Answer:
15° & 100°
Step-by-step explanation:
360-170-75=115
115÷23=5
3x5=15
20x5=100
We will call the unknown number <em>x</em>.
<em /><em>x</em> - 2 1/4 - 1/8(3) - 2/3(2) = 3 11/24
<em>x</em> - 2 1/4 - (1/8)(3/1) - (2/3)(2/1) = 3 11/24
<em>x</em> - 2 1/4 - 3/8 - 4/3 = 3 11/24
We need a common denominator. 24 is the first number that 4, 8 and 3 all both divide evenly into.
<em>x</em> - 2 6/24 - 9/24 - 32/24 = 3 11/24
<em>x</em> - 2 15/24 - 32/24 = 3 11/24
<em>x</em> - 2 47/24 = 3 11/24
<em>x</em> - 3 23/24 = 3 11/24
Cancel the 3 23/34 by adding to both sides:
<em>x</em> - 3 23/24 + 3 23/24 = 3 11/24 + 3 23/24
<em>x</em> = 6 34/24 = 7 10/24 = 7 5/12