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KIM [24]
3 years ago
15

Would this problem be graphing, substitution, or elimination? A perfume maker has stocks of two perfumes on hand. Perfume A sell

s for $15 per ounce. Perfume B sells for $35 per ounce. How much of each should be combined to make a 3-oz bottle of perfume that can be sold for $63?.
Mathematics
1 answer:
Alex3 years ago
4 0
Let a be the amt of perfume A, and b be the amt of perfume B. We have been given that

<span>a+b=3</span> and that <span>a∗15+b∗35=63</span>
From equation 1, we substitute <span>b=3−a</span> so as to get, <span>a∗15+(3−a)∗35=63

</span> which means, <span>15a+105−35a=63</span> which means, <span>−20a=−42

</span><span> so a = 2.1 ounce and b = 0.9 ounce</span>
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VMariaS [17]

Hello there! n < -2.

Solve for n. To do this, you want to get all other terms on the other side of the equation. The only other term is 7 in this case, so subtract 7 from both sides of the equation.

n +7-7< 5​-7

n < -2

This is your final answer! I hope this helps and have a great day!

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3 years ago
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Let f(p) be the average number of days a house stays on the market before being sold for price p in $1,000s.
vampirchik [111]
<span>The <u>correct answer</u> is:

This is the average number of days the house stayed on the market before being sold for $150,000.

Explanation<span>:

f(p) is defined as the average number of days a house stays on the market before being sold for price p (given in $1000).

We want f(150); this means p=150. Since p is in thousands of dollars, this means the price of the house was $150,000.

This means f(150) is the average number of days the house stayed on the market before being sold for $150,000.</span></span>
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Using figure 3 at the right, AB II CD and t is not perpendicular to them, which pair of angles are not congruent?
coldgirl [10]

Answer:

  ∠5 = 95°

Step-by-step explanation:

Where the transversal crosses parallel lines at some angle not a right angle, all of the acute angles are congruent, and all of the obtuse angles are congruent. The acute angles are (obviously) not congruent with the acute angles. Any acute angle is supplementary to any obtuse angle.

Since angles 5 and 6 are a linear pair, the angle relationships of the parallel lines are irrelevant. A linear pair of angles is supplementary.

  ∠6 = 85° . . . . is given

  ∠5 is shown as obtuse, so its measure is ...

  ∠5 = 180° -85° = 95°

_____

<em>Additional comment</em>

85° angles: 2, 3, 6, 7

95° angles: 1, 4, 5, 8

Any angle from the 85° angle list is <em>not congruent</em> with any angle from the 95° angle list. For example, angles 2 and 5 are not congruent.

7 0
3 years ago
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