At the grocery store, Charlie bought a jar of spaghetti sauce for $2.49, a package of spaghetti noodles for $1.58, and a gallon
1 answer:
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Answer:
8 miles or 25.133 miles
Step-by-step explanation:
your radius is 4 miles.
The area of a circle is A=
Therefore, the area of this circle is , or 16
Half of this area, because what you're looking for is a semi-circle, is:
8 (exact) or 25.133 (rounded) miles.
Answer:
345
Step-by-step explanation:
We can solve this problem by two equations. Our variables will be the following:
is the amount to be multiplied
and is the amount that should be obtained by multiplying by 43
Thus our <u>first equation</u> is:
But the problem tells us that there was an error and the number was multiplied by 34, so the result failed by 3105, thus the <u>second equation</u> is as follows:
By multiplying the quantity by 34, an amount is obtained that differs from 3105 from what it would have been obtained if multiplied by 43.
Now we are going to <u>replace the first equation in the second one </u>():
And clear to find x:
The number that jimmy was supposed to multiply by 43 is 345.