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Alenkinab [10]
2 years ago
5

The ratio 400g:1kg can be written in the form 1:n Find the value of n

Mathematics
1 answer:
nirvana33 [79]2 years ago
4 0

Answer:

n = 0.0025

Step-by-step explanation:

400g —————> 1kg

Then

400g —————> 1000g

or 1000/400 = 2.5 ⇔ 400 × 2.5 = 1000

Then

1g ———————> 2.5 × 1 = 2.5g = 0.0025kg

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You measure the sides of a pool and find that it is 20 yards wide and 60 yards long.
iren2701 [21]

Answer:

63 yards

Step-by-step explanation:

Based on the description, you can make a rectangle with the sides 20 yards and 60 yards.  You then draw a diagonal line (doesn't matter which one), and you use the pythagorean theorem (a^2+b^2=c^2).  Thus, you get 20^2+60^2=60^2, so 400+3600=c^2, then \sqrt{4000}

Which gives the value of 63.24 rounding to 63 yards

4 0
4 years ago
Read 2 more answers
Find the length of BC​
Likurg_2 [28]

Answer:

BC = 88.88

Step-by-step explanation:

Comment.

This looks like an example of the cos law.

Givens

AB = 100 m

<A = 60 degrees

AC = 70 m

Cos(60) = 1/2

BC = ?

Formula

BC^2  = AB^2 + AC^2 - 2*AB*AC * Cos(60)

Solution

BC^2 = 100^2 + 70^2 - 2*100*70 * 1/2     1/2 and 2 cancel out

BC^2 = 10000 + 4900 - 7000      

BC^2 = 7900                                             Take the sqr root of both sides

√BC^2 = √7900

BC = 88.88

8 0
2 years ago
Natasha was thinking of a number. Natasha doubles it and gets an answer of 93. What was the original number?
saul85 [17]

Answer:

46.5

Step-by-step explanation:

i divided 93 by 2 and got 46.5

hope this helps :)

4 0
3 years ago
Read 2 more answers
O. The number of for attending football match this week was 12% more more than last week. if 728 people attended this week's mat
Artist 52 [7]
Let the number of people who attended last week be ‘x’.
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6 0
2 years ago
Please help me I don’t understand this
Tomtit [17]

Answer:64

Step-by-step explanation:

67

4 0
3 years ago
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