Answer:
1st evening = 7 + 20 = 27 calls
2nd evening = 3 (20 ) = 60 call
3rd evening = 20 calls
Step-by-step explanation:
total calls for the last three evenings = 107 phone calls
2nd evening = 3x as many calls as the 3rd evening
1st evening = 7 more calls than the 3rd evening.
find:
how many calls did she receive each evening?
let T (total) = 107
let x = 3rd evening.
let 2nd = 3x
let 1st = (7 + x)
T = 1st + 2nd + 3rd
107 = (7 + x) + 3x + x
107 - 7 = 5x
100 = 5x
x = 100 / 5
x = 20
therefore,
1st evening = 7 + 20 = 27 calls
2nd evening = 3 (20 ) = 60 call
3rd evening = 20 calls
Answer:
adding the fraction for the whole number of times.
Step-by-step explanation:
Multiplication with fractions is similar to multiplication with whole numbers in that you are often finding the product of groups of items
Answer:
29,291,280
Step-by-step explanation:
May not be right
Answer:
<u>yes it is 16%</u>
Step-by-step explanation:
Let the price be $100 then new price will be = $100+$45= $145
45/100*100= $45
A 20% decrease means 20% 0f $145
20/100 * 145= $29
the new price after 20% decrease will be $ 145- $ 29= $ 116
$116-$100= $16
$16/100*100= 16%
yes it is 16%
Density = mass / volume.
Book density = 2000 grams / cm^3
Apple volume = 125 mL
Football mass = 400g
Gold density = 20 grams / cm^3
Soup volume = 200 cm^3