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anyanavicka [17]
3 years ago
10

At 2pm two military convoys leave Eagle River Wisconsin one headed North and 1 headed South the convoy headed North averages 50

miles per hour and the call boy headed South averages 40 miles per hour they will lose radio contact when the distance between them is more then a 135 miles when will this occur
Mathematics
1 answer:
skelet666 [1.2K]3 years ago
3 0

Answer:

The answer to the question is

1.5 hours that is;

When the distance between them is more then 135 miles is after 1.5 hours and they will lose radio contact at 3:30 p.m.

Step-by-step explanation:

We note that

The speed of the military convoy headed north =50 mph

The speed of the convoy headed south  = 40 mph

Let t be the time taken for the two convoys to be 135 miles apart

The time taken for the two convoys to be 135 miles apart is given by

50×t miles+ 40×t miles= 135 miles

That is 90×t miles = 135 miles

                  t = 135/90 = 1.5 hrs

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Answer:

I got 80, but Im not sure.

Step-by-step explanation:

Retail = Cost/(100% - Markup%)

Retail = 64/(100%-20%)

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Retail = 64/.80= $80

6 0
3 years ago
Translate the sentence into an inequality.
Leto [7]

5b + 29 ≤ -25 is the translation of the phrase "the sum of a number times 5 and 29 is at most -25"

<h3>How to translate an English phrase into an algebraic equation?</h3>

Given the phrase in the question;

The sum of a number times 5 and 29 is at most -25.

First, we translate;

Let the unknown number represented by b.

  • A number times 5 ⇒ b × 5 ⇒ 5b
  • Sum ⇒ 5b + 29
  • Inequality sign for at most -25 ⇒ less than or equal to ⇒ ≤ -25

Now we combine the terms;

5b + 29 ≤ -25

We can go and solve for the unknown number.

5b + 29 ≤ -25

Subtract 29 from both sides

5b + 29 - 29 ≤ -25 - 29

5b ≤ -25 - 29

5b ≤ -54

b ≤ -54/5

Therefore, the translation of the phrase is 5b + 29 ≤ -25.

Learn more about inequality here: brainly.com/question/20383699

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5 0
1 year ago
The table shows the values of different measurements in the metric system.
Lunna [17]

A micrometer has a power of 10^{-6}

A millimeter has a power of x 10^{-3}

A nanometer  has a power of 10^{-12}

A picometer  has a power of 10^{-12}

We are to write the numbers in standard form.

Standard form is a way of writing simplifying numbers and expressing numbers to a power of 10.

For example, to express 1000  in standard form, count the number of digits after the first number. There are 3 zeros. 3 would be the power of the number. So, 1000 in standard form is 1 x 10³

To express a decimal in standard form, count the numbers of zeros and the first non-zero digit  The negative of the number would be the power.

For example, 0.001 is standard form is 1 x 10^{-3}

A micrometer has 6 digits after the decimal point , it power would be x 10^{-6}

A millimeter has 3 digits after the decimal point, its power would be x 10^{-3}

A nanometer has 9 digits after the decimal point, its power would be x 10^{-12}

A picometer has 12 digits after the decimal point, its power would be x 10^{-12}

To learn more about standard form, please check: brainly.com/question/23123973?referrer=searchResults

4 0
2 years ago
Find the value of c, rounded to the nearest tenth <br> A. 11<br> B. 14.3<br> C. 37.6<br> D. 7.4
Helga [31]

Answer:

D. The correct value of  c  = 7.4

Step-by-step explanation:

According to Tangent-Secant theorem:

"When a tangent and a secant are drawn from one single external point to a circle, square of the length of tangent segment must be equal to the product of lengths of whole secant segment and the exterior portion of secant segment."

Here, the external length of tangent segment = 10

Also, the length of internal segment  is 14 and c.

So, by the SECANT THEOREM:

(10)^2  = 14 \times c\\\implies c = \frac{100}{14} = 7.14

or, c  = 7. 1428

Now, rounding off the value of c = 7. 14 to the nearest tenth, we get

c = 7. 4

Hence the correct value of  c  = 7.4

8 0
3 years ago
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a city doubles its size every 64 years. if the population is currently 225,000 what will the population be in 128 years
ale4655 [162]

Answer:

450,000

Step-by-step explanation:

128/64:2

225,000 X 2: 450,000

4 0
3 years ago
Read 2 more answers
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