50X0.26=13 than you would add them 50+13 which would equal 63
Answer:
A) 1/45
B) 1/60
Step-by-step explanation:
<u>Part A</u>
The actual car has a length to width ratio of ...
length/width = (570 cm)/(180 cm) = 57/18 = 3 1/6
The rectangle on the screen has a length to width ratio of ...
length/width = (13 cm)/(4 cm) = 3 1/4
Relative to its width, the screen rectangle is longer than necessary for a model of the car. So, the scale factor will be determined by the width of the car relative to the width of the screen model.
For a model width of 4 cm, the scale factor is ...
model/life-size = (4 cm)/(180 cm) = 1/45
__
<u>Part B</u>
For a model width of 3 cm, the scale factor is ...
model/life-size = (3 cm)/(180 cm) = 1/60
10 days is twice the half-life. After 5 days, can expect

grams to remain; after another 5 days, you'd be left with

grams.
2 x 2 7/8 = 5 3/4 hope it helps
Answer:
Step-by-step explanation:
1 yes
2 yes
3 yes
4 yes