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disa [49]
4 years ago
9

Can someone help with my math homework

Mathematics
1 answer:
Murljashka [212]4 years ago
5 0
Let's solve for c.

x2+18x+c=25+c

Step 1: Add -c to both sides.

x2+c+18x+−c=c+25+−c

x2+18x=25

Step 2: Add -x^2 to both sides.

x2+18x+−x2=25+−x2

18x=−x2+25

Step 3: Add -18x to both sides.

18x+−18x=−x2+25+−18x

0=−x2−18x+25

Step 4: Divide both sides by 0.

00=−x2−18x+250

c=−x2−18x+250

Answer:

c=−x2−18x+250

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Answer: 1.25+1.5=2.75

Explanation:
7 0
3 years ago
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Mo’s farm stand sold a total of 165 pounds of apples and peaches. She sold apples for $1.75 per pound and peaches for $2.50 per
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Answer: 65 pounds of Peaches were sold.

Step-by-step explanation:

Let the number of pounds of  Peaches sold                  = X pounds

Therefore the pound of apple sold                                 = (165 - X ) pounds

Total pounds of apple and peaches sold                       = 165 pounds

Sale made on Peaches at the cost of $2,50 per Peache = $2.50X

sale made on apple sold at the cost of $1.75 per apple  = $1.75(165 - x )

Total sale made on the sale of both Peaches and apple = $337.50

Therefore , open the bracket, add everything together and equate to the total sale made which is $337.50

 we now have

  2.50x + 1.75( 165 - x ) = 337.50

  2.50x + 1.75 x 165 - 1.75x = 337.50

  2.50x + 288.75 - 1.75x = 337.50

collect like terms

2.50x - 1.75x = 337.50 - 288.75

           0.75x = 48.75

divide through by the coefficient of x which is 0.75

                   x = 48.75/0.75

                      = 65pounds .

Therefore, Mo's farm sold 65 pounds of Peaches.

Check ;

  65 x 2.50 = $162.5

   subtract 65 from 165 to get the pound of the appel

   165 - 65 = 100 pounds of apple was sold.

 now multiply 100 x 1.75

                  = $175

Now add the two together to give the total sale ,

                $162.5 + $175  = $337.50.

 

                           

4 0
3 years ago
Help me please I'm trying to get this donee​
balandron [24]

Answer:

The answer is 15.

Step-by-step explanation:

Plug in the numbers for the a and b values individually.  For the numerator, 5(6) is the same thing as 5 * 6 = 30.  For the denominator, 1/4^2 would equal to 1/16 and when you multiply it by 32, you will get 2.

To clear things up, the fraction should be 30/2 and your answer should be 15 as a result.

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A shirt costing $34 is on sale for 30% off. What is the new price of the shirt after the discount?
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Answer:

$23.80

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30% off means we take 30% off of the original price, or we calculate

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Jacob rides a bicycle with 30 inch (2.5 feet) wheels. He can travel 150 revolutions in one minute. At this rate, what is the dis
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Answer:

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C=πd= 2.5*3.14= 7.85 ft

Distance= 7.85*750= 5887.5 ft ≈ 1.8 km

6 0
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