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Dafna11 [192]
3 years ago
8

Angela starts a blog about wheelchair basketball. In the first 4 days,

Mathematics
1 answer:
kykrilka [37]3 years ago
8 0
165 new subs.

22 divided by 4 is 5.5. So approximately 5.5 new subs per day. Multiply that by 30 is 165
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Which expression is equivalent to 10 square root 5
IRINA_888 [86]

Answer:

<h2>a) \sqrt{500}</h2>

Step-by-step explanation:

10 \sqrt{5}

\sqrt{ {10}^{2} }   \sqrt{5}

\sqrt{5 \times  {10}^{2} }

\sqrt{5 \times 100}

\sqrt{500}

6 0
3 years ago
Two planes just took off from St. Louis, MO. The first plane is traveling 3.5 times as fast as the second plane. After Traveling
Yanka [14]

Answer:

Speed of first plane is  350 miles per hour

Speed of second plane is 100 miles per hour

Step-by-step explanation:

Let the speed of the second plane be X

Then the speed of the first plane will be 3.5 X

Distance travelled by first plane is 9.5 *X

Distance travelled by second plane is 9.5 * 3.5 X

Difference of distance between the two plane is

9.5 * 3.5 X - 9.5 *X = 2375\\23.75 X = 2375\\X = 100miles per hour

Speed of first plane is 3.5 *100 = 350 miles per hour

Speed of second plane is 100 miles per hour

8 0
3 years ago
A patient requires an IV of D5W, a 5% solution of dextrose (sugar) in water. To the nearest milliliter, how much D20W, a 20% sol
solmaris [256]

Answer:

  A=300ml

Step-by-step explanation:

From the question we are told that

5% solution of dextrose sugar in water

20% solution of dextrose in

100 milliliters of distilled water water

Generally in mathematically solving we call A the amount of D20W added

Since 20% of dextrose is needed

       20 \%*100=20milliter

Total quantity after addition (100+x)

for DW5% total solution is

          5\% (100+A)= \frac{5}{100}(100+A)

          5\% (100+A) =5+0.05A

Mathematically

           5+0.05A =20

           5+0.05A =20-5

           A=\frac{15}{0.05}

           A=300ml

Therefore the required quantity A=300ml

7 0
3 years ago
You are biking at a speed of 18 miles per hour. You are 3 miles behind your friend who is biking at a speed of
labwork [276]

Answer:

12t -3 = 18t

Step-by-step explanation:

Let

d = your friends distance in miles

t = time in hrs

Your equation:

d - 3 = 18t (1)

Because you are 3 miles behind your friend

Your Friend's equation:

d = 12t (2)

To find the amount of time t it takes for you to catch up with your friend,

Substitute (2) into (1)

d - 3 = 18t

12t - 3 = 18t

Equation to find the amount of time t it takes for you to catch up to your friend is 12t - 3 = 18t

Solving the equation

12t - 3 = 18t

Collect like terms

12t - 18t = 3

-6t = 3

t = 3/-6

= -0.5

t = 1/2 hour

Time can not be negative, therefore it will take 1/2 an hour to catch up with your friend

3 0
3 years ago
B * In Using the expression above, choose the correct answers for the new balance and the amount of interest earned in the follo
Bad White [126]
In 8 years, you will have $1,573.29 thus $850-$1573.29 = $ <span>723.29 in interest</span>
4 0
3 years ago
Read 2 more answers
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