Answer:
180
Step-by-step explanation:
Answer:
Red circle: 30 cm
Blue circle: 60 cm
Step-by-step explanation:
The circle's circumference is calculated with

They want you to make it <em>about</em> how long it is so instead of pi we can just use 3 (since pi is about 3,14). The diameter (d) is double the ratio.
So now we just put in the numbers.
For the red one

The circumference is about 30 centimetres.
For the blue one
We know the ratio of the smaller so we just add together the small ratio with the rest of the length that we know so the blue one's ratio is 10 cm. (5+5=10)
And now we just put the numbers in again.

The circumference is about 60 centimetres.
1/2+1/6=1/n
4/6=1/n
4n=6
n=6/4=3/2 hours to do the driveways, working together
☺☺☺☺
Answer:
75 cents per can
Step-by-step explanation:
8 for $6 = 75 cents per can
10 for $10 = $1 per can
2 for $3 = $1.50 per can
The last store sold 28-oz for $1.40 each
To obtain the cost per 15-oz can of baked beans
28-oz / 15-oz = 1.86667of 15 - oz cans of baked beans can be obtained from 28 - oz.
The price per can will now be :
$1.40 / 1.8666666
= $0.75
= 0.75 * 100 = 75 cents
Hence, for the last store, they sold at 75 cents per can similar to the first store.
X=rcos∅=r cos (-210)=r cos 210=rcos (180+30)=-r cos 30


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