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3 years ago

Mary Beth and her family ate a meal in a restaurant the cost of the meal was $34.50 the sales tax was 8% of the cost of the meal

1 answer:

4 0

The total cost would be the tax plus the cost of the meal. In order to find the tax you can set up a proportion: 8/100=x/34.5. Then you can cross multiply: (100•x)=(8•34.5). Then we have 100x=276. Divide both sides by 100 and we have x=2.76. This added to the 34.50 is equal to 37.26. Hope this helps!

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In the United States, we measure milk by the gallon. If we were using the metric system, what metric unit would we use

Lynna [10]

Answer:

The metric unit used for milk is the liter, L.

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2 years ago

) You are finally well!  But now your child is sick!  You know there have been mistakes in orders so you are on the internet t

rjkz [21]

Answer:

The doctor's dosage was not appropriate.

The right dosage is from 56.625 mg to 113.25 mg of Antibiotic to be given every 6 hour for the child with weight 25 lbs.

Step-by-step explanation:

It is given that 20 to 40 mg/kg/day is the recommended dosage.

Now, the doctor's order is 150 mg of antibiotic to be given every 6 hours. And my child weighs 25 lbs.

Now, 1 lb is equivalent to 0.453 kg.

So, my child's weight is (25 × 0.453) = 11.325 kg.

So, the doctor's order is 150 mg of antibiotic to be given every 6 hours for a child of weight 11.325 kg.

Hence, the dosage is [(150 × 4) ÷ 11.325] = 52.98 mg/kg/day.

So, this is not within the limit of 20 to 40 mg/kg/day.

Therefore, the doctor's dosage was not appropriate.

Now, let the appropriate dosage is x mg per every 6 hours for a child with weight 25 lbs i.e. 11.325 kg.

So, $20 \leq \frac{4x}{11.325} \leq 40$

⇒ $20\leq 0.3532x \leq 40$

⇒ $56.625 \leq x \leq 113.25$

So, the right dosage is from 56.625 mg to 113.25 mg of antibiotic to be given every 6 hours for the child with weight 25 lbs. (Answer)

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3 years ago

Write a quadratic equation with a integer coefficients with roots x= 1/2 and x=-4

Misha Larkins [42]

The quadratic equation with roots a and b is given by:

$x^2-(a+b)x+ab=0$

Here a=1/2 and b=-4.

So the equation is given by:

$\begin{gathered} x^2-(\frac{1}{2}-4)x+(\frac{1}{2})(-4)=0 \\ x^2+\frac{7}{2}x-2=0 \\ 2x^2+7x-4=0 \end{gathered}$

The quadratic equation is as shown above.

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1 year ago

Which congruency theorem can be used to prove that △ABD ≅ △DCA?<br> SSS<br> ASA<br> SAS<br> AAS

NISA [10]

Answer:

SAS

Step-by-step explanation:

Given: Two triangles ΔABD and ΔDCA,

We have, AD=AD (common)

∠A=∠A (Given)

BA=CD (Sides opposite to equal angles are always equal)

With the SAS rule of congruency,

ΔABD≅ΔDCA

3 0

3 years ago

Read 2 more answers

Order 34 x 10^2,1.2x10^7,8.11×10-^3 and 435 from least to greatest

FromTheMoon [43]

Answer:

The ascending order is $8.11\times 10^{-3},435, 34\times 10^2, 1.2\times 10^7$

Step-by-step explanation:

First of all find the exact value of each number.

$34\times 10^2=34\times 100=3400$

$1.2\times 10^7=1.2\times 10000000=12000000$

$8.11\times 10^{-3}=\frac{8.11}{1000}=0.00811$

The fourth number is 435.

Using the above calculation we can easily arrange these numbers form least to greatest.

The ascending order is

$0.00811, 435, 3400, 12000000$

It can be written as

$8.11\times 10^{-3},435, 34\times 10^2, 1.2\times 10^7$ .

4 0

3 years ago