-5(k + 6) + 7(k

A shop sells candles in boxes of 3 for $12.60 each or 1 candle for $5.50. How many candles can Julia buy with $20?

kherson [118]

Answer: the number of scented candles ... x

the number of unscented candles ... y

x + y = 28

$16 * x + $10 * y = $400 ... 16 * x + 10 * y = 400

Step-by-step explanation: This is the equation

16 * (28 - y) + 10 * y = 40016 * 28 - 16 * y + 10 * y = 400448 - 400 = 16 * y - 10 * y48 = 6 * y /6y = 48 / 6y = 8x = 28 - y = 28 - 8 = 20Result: The candle shop sold 20 scented candles and 8 unscented candles today.

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4 0

4 years ago

The standard diameter of a golf ball is 42. 67 mm. A golf ball factory does quality control on the golf balls it manufactures. G

Mashutka [201]

Discrepancy is the difference of a the value from the uniform distribution. The function for the given situation can be given as,

$f(x)=|x|-42.67$

Hence the option 2 is the correct option.

Given information-

The standard diameter of the golf ball is 42.67 mm.

The discrepancy in the diameter is 0.004 mm.

<h3>What is discrepancy?</h3>

Discrepancy is the difference of a the value from the uniform distribution.

Suppose the discrepancy is x mm.

If the discrepancy in diameter is more than 0. 004 mm, the production is stopped.

As the discrepancy of 0.004 mm or more is stopped the production, we have to subtract the diameter to the discrepancy .

Thus the function for the situation can be given as,

$f(x)=-42.67+|x|$

Rearrange for the x,

$f(x)=|x|-42.67$

Thus the function for the given situation can be given as, $f(x)=|x|-42.67$

Hence the option 2 is the correct option.

Learn more about the discrepancy here;

brainly.com/question/6445203

5 0

3 years ago

5x^2-40=0; solve by using square roots.

Pavel [41]

5x- SR 40= 0., add to the other side, 5x= SR 40. divide both sides by 5, x= SR of 8, or 2 SR 2

5 0

3 years ago

Read 2 more answers

Emma has 5 3/8 punds of potato salad and 2 7/8 pounds of egg salad for a picnic. How many more pounds of potato salad than egg s

Stella [2.4K]

<u>Answer:</u>

The correct answer option is C. $2\frac{1}{2}$ pounds

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

We are given that Emma has $5\frac{3}{8}$ pounds of potato salad and $5\frac{3}{8}$ pounds of egg salad for a picnic.

We are to find out how much more pounds Emma has of potato salad than the egg salad.

To find this, we simple need to subtract the pounds of egg salad from the pounds of potato salad.

$5\frac{3}{8} - 5\frac{3}{8}$ $=\frac{43}{8} -\frac{23}{8} =\frac{43-23}{8} = 2\frac{1}{2}$ pounds

4 0

4 years ago

Sin^2x + sin^2x + cos²x

Nezavi [6.7K]

Answer:

Answer:

A. 2 sinx cosx - 1 + 2 sin^2 x.

Step-by-step explanation:

sin2x = 2 sinx cosx

cos2x = cos^2x - sin^2x

So sin2x - cos2x = 2 sinx cosx - ( cos^2x - sin^2x)

But cos^2 x = 1 - sin^2 x, so we have:

2 sinx cosx - (1 - sin^2 x - sin^2x)

= 2 sinx cosx - 1 + 2 sin^2 x.

7 0

3 years ago

-5(k + 6) + 7(k – 4)