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telo118 [61]
3 years ago
8

Help asappp!!!!!!!!!!

Mathematics
2 answers:
Sever21 [200]3 years ago
7 0

Answer:

2.5*15 is 37.5 miles so he has run more than 30 miles in 15 days.

Snowcat [4.5K]3 years ago
4 0

Answer:

  • More than 30 miles

Step-by-step explanation:

Estimated distance run everyday : 2.5 miles → rounding down = 2 miles

  • Time = 15 days
  • Total = 2*15 = 30 miles

Since we rounded down, the total distance in reality is more than 30 miles

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In the number 1934 is a value of 9 in 100 place 10 times the value of the 3 in the tens place
dybincka [34]

no because mathematically 30X10=300 not 900 its would have to be 30X30 to get the product of 900 so therefore no your statement is incorrect

8 0
3 years ago
-2.8f + 0.7f - 14 - 4
den301095 [7]

Answer:

Step-by-step explanation:

-2.8f + 0.7f - 14 - 4

- 2.1f - 18

3 0
3 years ago
Read 2 more answers
If a sum invested gains 10% each year how long will it be before it has doubled its<br> value?
Anika [276]

Using an exponential equation, it is found that it will be 7.3 years before the value is doubled.

The equation for an increasing <u>exponential function</u> is given by:

A(t) = A(0)(1 + r)^t

In which:

  • A(0) is the initial amount.
  • r is the growth rate, as a decimal.

In this problem:

  • Gains 10% each year, thus r = 0.1.

The doubling time is t for which A(t) = 2A(0), then:

A(t) = A(0)(1.1)^t

2A(0) = A(0)(1.1)^t

(1.1)^t = 2

\log{(1.1)^t} = \log{2}

t\log{1.1} = \log{2}

t = \frac{\log{2}}{\log{1.1}}

t = 7.3

It will be 7.3 years before the value is doubled.

A similar problem is given at brainly.com/question/23008760

4 0
3 years ago
What is a right angle?<br> plz explain in own words!
Zinaida [17]
A right angle measure 90°, so like the angle would look like: L, the corner of the L
8 0
3 years ago
Read 2 more answers
Can some one help me with this and show the steps please
Alecsey [184]

Answer:

byyeeeeee lol, (P.S., dont dieeee)

Step-by-step explanation:

8 0
3 years ago
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