Answer:
1,771.6 inches.
Step-by-step explanation:
As there are 13 girls and 15 boys in the class, there are a total of 28 students (13 + 15). Thus, while the average height of these is 161 cm, the total height in centimeters of all the students is 4.508 centimeters (161 x 28).
Now, 1 centimeter is equal to 0.393 inches. Thus, since 4.508 x 0.393 equals 1,771.6, the height in inches of the entire class measured together is 1,771.6 inches.
Answer:
The answer must be B, since there is 3 coins not 2 so it can’t be D and it is obviously not A nor C.
Distribute first so
2x-x+2=2-x+1
Combine like terms so
x+2=3-x
Get terms on the same side so
2x+2=3
Subtract 2
2x=1
Divide
X=1/2 or .5
Answer:
(1,4) or 1 < x < 4
Step-by-step explanation:
3 = less than 2x + 1 and 2x + 1 is less than 9
we can split the two parts of the equation
3< 2x + 1 and 2x + 1 < 9
for 3< 2x + 1 x has to be greater than 1
for 2x+ 1 < 9 x has to be less than 4 so the answer is (1,4) or 1 < x < 4
