Answer:
16
Step-by-step explanation:
1st group = 30% or .3 as a decimal
.3 * 40 = 12
2nd group = ate 7
Third group = 1/8 or .125 as a decimal
.125 * 20 = 5
12 + 7 + 5 = 24
40 -24 = 16
Answer:
6.4
Step-by-step explanation:
A = p(1-r/n)^nt
p is you starting value
n is the compound time so it would be every day.
t is ur amount if time
Answer:
Part a)
of fabric
Part b)
of thread
Step-by-step explanation:
we know that
A seamstress uses
centimeters of thread for every
centimeters of fabric
Part a)
by proportion
Find how much fabric is involved if the seamstress uses
centimeters of thread
![\frac{7.6}{5.7}\frac{cm\ fabric}{cm\ thread} =\frac{x}{4.2}\frac{cm\ fabric}{cm\ thread} \\ \\x=4.2*7.6/5.7\\ \\x=5.6\ cm\ fabric](https://tex.z-dn.net/?f=%5Cfrac%7B7.6%7D%7B5.7%7D%5Cfrac%7Bcm%5C%20fabric%7D%7Bcm%5C%20thread%7D%20%3D%5Cfrac%7Bx%7D%7B4.2%7D%5Cfrac%7Bcm%5C%20fabric%7D%7Bcm%5C%20thread%7D%20%5C%5C%20%5C%5Cx%3D4.2%2A7.6%2F5.7%5C%5C%20%5C%5Cx%3D5.6%5C%20cm%5C%20fabric)
Part b)
by proportion
Find how many centimeters of thread is needed if the seamstress is working with
centimeters of fabric
![\frac{7.6}{5.7}\frac{cm\ fabric}{cm\ thread} =\frac{21.2}{x}\frac{cm\ fabric}{cm\ thread} \\ \\x=5.7*21.2/7.6\\ \\x=15.9\ cm\ thread](https://tex.z-dn.net/?f=%5Cfrac%7B7.6%7D%7B5.7%7D%5Cfrac%7Bcm%5C%20fabric%7D%7Bcm%5C%20thread%7D%20%3D%5Cfrac%7B21.2%7D%7Bx%7D%5Cfrac%7Bcm%5C%20fabric%7D%7Bcm%5C%20thread%7D%20%5C%5C%20%5C%5Cx%3D5.7%2A21.2%2F7.6%5C%5C%20%5C%5Cx%3D15.9%5C%20cm%5C%20thread)
Walmart has a slightly better price. Target would charge $15.80 for 2 where as Walmart charges $15.60 for 2.