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Ratling [72]
3 years ago
10

During a relay, Natasha swam 0.8 km and Kevin swam 500 m. How many meters did they swim in total?

Mathematics
2 answers:
lisabon 2012 [21]3 years ago
7 0
0.8km = 800m

Total distance swam = 500m + 800m = 1300m
Savatey [412]3 years ago
6 0
I wanna say its 16
(not 100% sure)
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The Baltimore Aquarium requires 3 adult chaperones for every 15 students on a field trip. How many chaperones would be needed fo
Elden [556K]
There would need to be 25 adult chaperones. 

The ratio would be 3 adults to every 15 kids. 3:15
To find how many adults are needed for 125 kids you would simply divide.
125/5=25

Hope this helps! :)
6 0
3 years ago
Simplify. Assume that a is a positive integer and a>2. (a-2)!/a!
Paul [167]

Answer:

C. 1 / (a(a - 1))

Step-by-step explanation:

View Image

Just know that:

n! = n(n-1)!

   = n(n-1)(n-2)!

   = n(n-1)(n-2)(n-3)!

   = ...

8 0
3 years ago
Read 2 more answers
Sam gets paid a set rate in his allowance for making his bed every morning. His rate is $0.50 earned for every morning that he m
AlekseyPX

Answer:

bottom graph of left picture

Step-by-step explanation:

For each day he makes his bed, he earns $0.50

In 1 day he earns $0.50

In 2 days he earns $1.00

In 3 days, he earns $1.50

...

In 8 days, he earns $4.00

Look in the 4 graphs.

Which graph has the following points, (1, 0.5), (2, 1), 3, 1.5), ... , (8, 4)?

It is the second graph (bottom graph of left picture.)

4 0
2 years ago
Does anyone know how to do this ?
goldenfox [79]

Answer: D) 32

Step-by-step explanation:

The area of a parallelogram equals its base times its height. Substitute the base and area into this formula to solve for the height:

A=bh

40=(5)(h)

h=8

If ABCD is a parallelogram, opposite sides are parallel, so AB is parallel to DC. If AB is parallel to DC, EB is parallel to DC. Since EB is parallel to DC, quadrilateral EBCD has at least one pair of parallel sides, making it a trapezoid. The area of a trapezoid is equal to \frac{h(b_{1}+b_{2})  }{2} where h is the height, b_{1} is one base, and b_{2} is the other base. Plug the necessary values into the formula:

A=\frac{h(b_{1}+b_{2})  }{2}

b_{1} =AB-AE\\DC=AB\\b_{1} =DC-AE\\b_{1} =5-2\\b_{1} =3

b_{2} =5

h=8

A=\frac{8(3+5)}{2}

A=32

The answer is D) 32.

6 0
2 years ago
What is meaning of irrational exponents.
sweet [91]

Answer:

Here

Step-by-step explanation:

Irrational exponents are non repeating or infinite decimals while rational exponents are rational numbers. The value of an irrational exponent when calculated is approximate in nature while the value of rational exponent is exact.

4 0
2 years ago
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