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allochka39001 [22]
3 years ago
8

A race is 10 km long markers will be placed at the beginning and the end of the race course and I each 500 m Mark how many marke

rs are needed to mark the course for the race?
Mathematics
2 answers:
sweet-ann [11.9K]3 years ago
6 0
20 Markers are needed to mark the course for the race
Alinara [238K]3 years ago
3 0
There are 20 marks needed!
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(ab² + 13b - 4a) + (3ab² + a +7b)
Natalija [7]

Answer:

4ab² + 20b - 3a

Step-by-step explanation:

This question most likely asks us to simplify the expression, as factoring is not possible...

(ab² + 13b - 4a) + (3ab² + a + 7b),

ab² + 13b - 4a + 3ab² + a + 7b,

ab² + 3ab² + 13b + 7b - 4a + a,

Solution : 4ab² + 20b - 3a

4 0
3 years ago
Point E is on line segment DF. Given DE<br> EF.<br> 6 and DF =9, determine the length EF
nlexa [21]

Answer:

<h2>3</h2>

Step-by-step explanation:

IF point E lies on the line segment DF, this means that all the points DEF are collinear and DE+EF = DF.

Given parameter

DE = 6

DF = 9

Required

EF

Substituting the given parameter into the expression above to get the required will be;

DE+EF = DF.

EF = DF-DE

EF = 9-6

EF = 3

Hence the length of EF is equivalent to 3

5 0
3 years ago
Solve for x -6x+14&lt;-28 AND 3x+28&lt;=25
scoray [572]

Answer:

-6x+14<-28

x = x > 7

3x+28<=25

x = x less than or equal to -1

Step-by-step explanation:

7 0
2 years ago
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I need the answer fast
Fantom [35]

Answer:

B. What was the highest temperature this month?

Step-by-step explanation:

Rory is recording the <em>high</em><em>est</em><em> temperature</em> for the duration of the day for month's worth of data.

B. is the easiest one to answer, as you simply will have to look for the greatest number within the set, and that will be the answer.

A. is too broad, and does not imply that only the "high temperature" is needed, rather just a leveled temperature within day in that month.

C. is the opposite of what Rory had recorded, and without data, he cannot answer it.

D. is answerable as well, but, again, the only temperature recorded is the high temperature. Temperature can fluctuate depending on the time of the day, and can be in the 50s one hour and the 90s in another.

~

5 0
2 years ago
$4.30 40% discount 6% tax
alex41 [277]
The total would be $2.73.
7 0
3 years ago
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