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Nikolay [14]
3 years ago
11

What's the equivalent ratio 15:3

Mathematics
1 answer:
fomenos3 years ago
7 0
5:1 divide it by three
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BRAINLIEST FOR U! answer in 5 mins
irinina [24]

Answer:

I would say the answer is c


3 0
3 years ago
-15.6 = -3.9r<br> please include an explanation of how you got your answer :) thanks
Mumz [18]

Here is the equation:

-15.6 = -3.9r

Since both decimals are negative, the answer will be positive.

  • Negative times Negative = Positive

Divide both sides by -3.9 to leave the variable alone:

-15.6 \div -3.9  = -3.9r \div -3.9 \\ 4 = r

r is equal to 4 → r = 4

5 0
2 years ago
Which of the following equations has exactly one solution?
shusha [124]

Answer:

A

Step-by-step explanation:

5a+4=9a+3-4a

5a-9a+4a=3-4

a=-1

6 0
2 years ago
What is the Median of the numbers 45, 40, 47, 50, 45, 49, 40, 46?
stepan [7]

Answer: 45

Step-by-step explanation:

The Median is the Middle # in the set.

I hope this helps!

8 0
2 years ago
Last year, 45% of business owners gave a holiday gift to their employees. A survey of business owners conducted this year indica
natka813 [3]

Answer:

a)x₁  = 24  business owners plan to provide a gift this year

b)  p-value = 0,0017

c)p-value < α   we have to eject H₀   And support the claim that the proportion of business owners providing gifts has decrease

Step-by-step explanation:

a) Sample size 80

proportion  p₁  = 30 %   p₁ = 0,3

Then   x₁ = 80*0,3

x₁  = 24  business owners plan to provide a gift this year

b) Hypothesis Test

Null Hypothesis                    H₀          p₁  =  0,45

Alternative Hypothesis        Hₐ          p₁  <  0,45

p₁  =  0,3   then  q₁  =  1  -  0,3    q₁ =  0,7

z(s)  = ( p₁  -  0,45 )/ √p₁* q₁ / n

z(s)  =  -  0,15 / √0,002625

z(s) = - 0,15 / 0,05123

z(s) = - 2,9279

b)From z-table we find  p-value = 0,0017

c) If  α = 0,05   ( significance level )  as

p-value < α   we have to eject H₀   And support the claim that the proportion of business owners providing gifts has decrease

6 0
2 years ago
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