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leonid [27]
2 years ago
10

a farm had 35 cows if the ratio of cows to horses was 7:3 what is the combined amount of cows and horses?

Mathematics
1 answer:
jenyasd209 [6]2 years ago
3 0
7x- Number\ of\ cows\\\\
3x-\ Number\ of\ horses\\\\
7x=35\ \ \ |:7\\\\
x=5\\\\
7x+3x=7*5+3*5=35+15=50\\\\
Combined\ amount\ of\ cows\ and\ horses\ is\ equal\ to\ 50.
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Ten times the sum of half a number and 6 is 8
nexus9112 [7]
Let the required number is 2x ,





According to the condition,



➡ 10 times the sum of half of 2x and 6 = 8

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Oduvanchick [21]
<h2>Answer:</h2>

<u>x= 90°</u>.

<h2>Step-by-step explanation:</h2>

<h3>1. Write the expression.</h3>

4 + 2 sin(x)= 14-8 sin(x)

<h3>2. Subtract "4" from both sides of the equation.</h3>

-4+4 + 2 sin(x)= 14-8 sin(x)-4\\ \\2 sin(x)= 10-8 sin(x)

<h3>3. Add "8sin(x)" to both sides of the equation.</h3>

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<h3>4. Divide both sides by 10.</h3>

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<h3>5. Apply the arcsin of sin^-1 to both sides of the equation.</h3>

arcsin(sin(x))=arcsin(1)\\ \\x=90

<h3>6. Conclude.</h3>

<u>x= 90°</u>.

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RideAnS [48]

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ziro4ka [17]

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