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son4ous [18]
4 years ago
9

While on summer vacation, Mr. Duda traveled about 230 miles to a city near Dallas in 3 hours. How many miles

Mathematics
1 answer:
Svetlanka [38]4 years ago
5 0

Answer:

76 2/3 (Rounded = 77)

Step-by-step explanation:

Step 1: Divide 230 by 3.

Step 2: Get your answer.

Answer - 76.66666666...

Hope this helps!

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Can someone solve numbers 3 and 4, and show your work plz
eduard

3 would turn into

<u>b= b^(6+8)</u>

b= ^(3+4)

b^14/b^7 or 1/2

4 would be

a^(14+10)  /  a(5+7)  

a^24  / a^12    or 1/2


8 0
3 years ago
Hghgytugr3dgufdhgrufbjyrf<br><br>​
Ostrovityanka [42]

Answer:

no

Step-by-step explanation:

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8 0
3 years ago
Solve the following system of equations algebraically.
Triss [41]

Answer:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

Point Form:

( 12 , 15 )

Equation Form:  x = 12 , y = 15

Step-by-step explanation:

7 0
3 years ago
What are the values of a and b​
makvit [3.9K]

Answer:

\large\boxed{B.\ a=8,\ b=4\sqrt5}

Step-by-step explanation:

We have three similar triangles:

\triangle ABC\sim\triangle DBA\sim\triangle DAC

therefore the sides are in proportion:

\dfrac{AD}{CD}=\dfrac{BD}{AD}

We have AD = a, CD = 16 and BD = 4. Substitute:

\dfrac{a}{16}=\dfrac{4}{a}              <em>cross multiply</em>

(a)(a)=(16)(4)\\\\a^2=64\to a=\sqrt{64}\\\\a=8

and other proportion:

\dfrac{AB}{BC}=\dfrac{BD}{AB}

We have AB = b, BC = 16 + 4 = 20 and BD = 4. Substitute:

\dfrac{b}{20}=\dfrac{4}{b}             <em>cross multiply</em>

(b)(b)=(20)(4)\\\\b^2=80\to b=\sqrt{80}\\\\b=\sqrt{16\cdot5}\\\\b=\sqrt{16}\cdot\sqrt{5}\\\\b=4\sqrt{5}

3 0
3 years ago
An emergency room doctor prescribes a certain pain medication to be delivered through an IV drip. She prescribes 800 mL of the
Keith_Richards [23]

Answer:

The number of drips per minute needed to deliver the medication at the prescribed dosage is 50 drips per minute

Step-by-step explanation:

The given parameters are;

The volume of the prescribed medication to delivered through IV = 800 mL

The duration over which the drug is to be delivered = 8 hours

The rate at which the IV delivers the medication = 30 drips/1 mL

800 mL = 800 × 1 mL

Therefore, the total number of drips in 800 mL= 800 mL × 30 drips/mL = 24,000 drips

The rate at which the drug is delivered = 800 mL/(8 hours) = 100 mL/hr = 100/60 mL/minute = 10/6 mL/minute

The total number of drips in 10/6 mL= 10/6 mL × 30 drips/mL = 50 drips

∴ The rate at which the medication needs to be delivered = 10/6 mL/minute = 50 drips/minute

The number of drips per minute needed to deliver the medication at the prescribed dosage of 800 mL/(8 hours) = 10/6 mL/minute = 50 drips per minute.

8 0
3 years ago
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