Una tira de tela blanca mide 120 metros, se la quiere pintar de tres colores, un octavo se pinta de rojo, un tercio del resto se
2 answers:
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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.
Answer:
Step-by-step explanation:
Given
Required
Determine the scale
The scale is calculated using the following ratio:
Substitute values for Scale and Actual Measurements
Divide ratio by 20.5
This implies that: <em>1 inch on scale represents 8 ft in actual measurement</em>