3 years ago

PLZ HELP CLICK THE PIC

Mathematics

1 answer:

ipn [44]3 years ago

4 0

Answer:

angle A=52

Step-by-step explanation:

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2 years ago

If there are 4 trucks for every 5 animals, then how many trucks would there be if there were 20 animals?

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For their homecoming parade, the students of U-Math have created a colorful banner, 57 meters in length, that is made of two

BartSMP [9]

Answer:

$Length\ of\ the\ long\ piece=40\ meters\\\\Length\ of\ the\ short\ piece=17\ meters$

Step-by-step explanation:

Let be "s" the length in meters of the short piece and "l" the lenght in meters of the long piece.

Set up a system of equations:

$\left \{ {{s+l=57} \atop {s=l-23}} \right.$

Apply the Substitution Method to solve the system. Substitute the second equation into the first equation and solve for "l":

$(l-23)+l=57\\\\2l=80\\\\l=\frac{80}{2}\\\\l=40$

Susbstitute the value of "l" into the second equation in order to find the value of "s". This is:

$s=40-23\\\\s=17$

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2 years ago

The medical laboratory claim that the mean turn-around time for the performance of the battery of tests on blood sample is 1.005

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R = {10, 15, 20}

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Answer:

R n S = {20}

Step-by-step explanation:

n in sets means same elements found in the sets which are being compared

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