3 years ago

What are two ratios that are equivalent to 15:20

Mathematics

2 answers:

Nikitich [7]3 years ago

7 0

One ratio is 30:40 since 15 times 2 is 30 and 20 times 2 is 40.

Lady_Fox [76]3 years ago

6 0

Answer:

I have one it’s 3:4

Step-by-step explanation:

You simplify by dividing both by 5

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An elevator goes up 7 floors and then down 4 floors. What integer represents the change in the floor level?

mariarad [96]

Going up 7 and then down 4 can be represented by 7-4=3

4 0

3 years ago

Read 2 more answers

I need help please I will mark you brainlists

V125BC [204]

Answer:

2. ΔABC is isosceles

Step-by-step explanation:

Given : m∠A = 50

m∠BCD = 180 - (m∠BDC + m∠DBC)

= 180 - (100 + 30)

= 50

then

m∠A = m∠BCD

therefore ΔABC is isosceles

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2 years ago

Find the value of x.

Lemur [1.5K]

Answer:

137

Step-by-step explanation:

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2 years ago

To play the lottery in a certain state, a person has to correctly select 5 out of 45 numbers, paying a $1 for each five-number s

defon

There are 45 numbers out of which 5 numbers are required to win an enormous sum of money

No of ways in which 5 numbers can be selected out of 45 numbers.

$C_{45}^5=\frac{45!}{40!5!} =1221759$

out of which there is only combination foe contest winning

$P=\frac{1}{1221759}$

When 100 different tickets are bought then

Probability of winning: $\frac{100}{1221759}$

Probably of winning≈0,000082

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P.S. Hello from Russia :^)

4 0

2 years ago

The width of a rectangle is 8 inches less than the length, x, of the rectangle. The sum of the length and width is more than 60

spin [16.1K]

Answer:

x>34

Step-by-step explanation:

w = x-8

w+x>60

x-8+x>60 (substitute x-8 for w)

2x-8>60

2x>68 (add 8 to both sides)

x>34 (divide both sides by 2)

please mark as brainliest :)

5 0

2 years ago