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olya-2409 [2.1K]
3 years ago
6

Jessica has 4/8 of a bottle of Robitussin syrup on hand. The pharmacist instructs Jessica to reduce the syrup by 1/2 so he can p

repare a patient’s prescription. How much Robitussin does the pharmacist need to prepare the prescription?
Mathematics
1 answer:
andrey2020 [161]3 years ago
8 0

Answer:

0

Step-by-step explanation:

First, in order to subtract these fractions, we need the denominators to be the same number.

4/8 x 2 = 8/16

1/2 x 8 = 8/16

8/16 - 8/16 = 0. The doctor does not need any Robitussin at all

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What are the x- and y-intercepts of the graph of 5x-4y= -20
lakkis [162]

To find the intercepts, we can set the opposite variable equal to 0 and solve.

Let's find the x intercept first.

5x - 4(0) = -20

5x = -20

Divide both sides by 5.

x = -4

<h3>The x intercept is -4.</h3>

Now let's find the y intercept.

5(0) - 4y = -20

-4y = -20

Divide both sides by -4.

y = 5

<h3>The y intercept is 5.</h3>
7 0
3 years ago
Read 2 more answers
How much cashews at $1.58 per pound must be mixed with walnuts that cost 78 cents per pound to make a mixture of 40 pounds of nu
Likurg_2 [28]

Number of pounds of cashews is 36 pounds and number of pounds of walnuts is 4 pounds.

Step-by-step explanation:

  • Step 1: Given details are cost of cashews = $1.58, cost of walnuts = 78 cents = $0.78, total weight of nuts = 40 pounds, cost of nuts per pound = $1.50
  • Step 2: Let number of pounds of cashews to be mixed be C, then number of pounds of walnuts will 40 - C. Form equation with these variables.

⇒ 1.58 C + (40-C) 0.78 = 40 × 1.50

⇒ 1.58 C + 31.2 - 0.78 C = 60

⇒ 1.58 C - 0.78 C = 60 - 31.2

⇒ 0.8 C = 28.8

⇒ C = 36 pounds

  • Step 3: Calculate number of pounds of walnuts

⇒ Number of pounds of walnuts = 40 - C = 4 pounds

5 0
3 years ago
Read 2 more answers
Which functions could represent a reflection over the y axis of the given function
fredd [130]

Answer:

g(x) = 1/2*(4)^(–x)          and

g(x) =1/2*(1/4)^(x)

Please, see attached picture.

Step-by-step explanation:

Your full question is attached in the picture below

To easily solve this problem, we can graph each equation and see, which one represents a reflection of the function over the y axis.

See, second image.

The answers are

g(x) = 1/2*(4)^(–x)          and

g(x) =1/2*(1/4)^(x)

4 0
3 years ago
141.3 rounded to the nearest tenth
maksim [4K]
141.3 <em>is </em>the nearest tenth. 0.3 is in the tenths place.
5 0
3 years ago
Toby just graduated from four years of college. at the beginning of each year, he took out a stafford loan with a principal of $
Mila [183]

If he starts paying after four years, the worth of the loans by then is b. $31,616.16

<h3>What is a Loan?</h3>

This refers to the amount collected from a lender to be repaid after a given time, usually with added interest.

Hence, we can see that:

The effective monthly interest rate is:

i = 0.053/12 = 0.0044

The effective annual interest rate is:

i = (1 + 0.0044)^12 -1 = 0.0543

The present worth of all the loans is:

P = 6125 + 6125 (1 + 0.0543)^-1 + 6125 (1 + 0.0543)^-2 + 6125(1 + 0.0543)^-3

P = $22,671.40

If he pays them prompty, then the total lifetime cost would be

P = 22671.40 (1 + 0.0543)^4 = $31,616.16

Read more about loans here:

brainly.com/question/2363571

#SPJ4

6 0
2 years ago
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