Answer:
hey its me again so the answer is 11.
I'm sure because I did this.
Z= (X-mean)/s.d.
X (height in inches) = (Z*sd)+mean = (1.5*2.4)+54 = 57.6 in
Answer:
3/4 · 7/5=21/20
Step-by-step explanation:
3/4 ÷ 5/7=21/20
Hope this helps!
Answer:
13/8 = 1 5/8
Step-by-step explanation:
first make 3 1/4 into an improper fraction
3 1/4 = (3*4+1)/4 = 13/4
13/4 /2
we know that dividing by a number is multiplying by its reciprocal, so
(13/4)/2 = 13/4 * (1/2)
multiply the numerators together, and multiply the denominators together
13/4 * (1/2) = (13*1)/(4*2) = 13/8 = 1 5/8