B)

Mathematics

1 answer:

hichkok12 [17]3 years ago

3 0

Answer:

the answer is 3:1 in it's simplest form

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Yesterday your bus ride took 10 minutes. TOday it took 13. What is the percent of increase?

Reika [66]

3 percent i think just double check

3 0

3 years ago

Read 2 more answers

Records for the past several years show that 46% of customers at a local game shop use a customer loyalty card. Due to a recent

Ratling [72]

Answer:

1. Null hypotheses: p=0.49

Alternative hypotheses: p>0.49

2. p=0.5704 or 57.04%

Step-by-step explanation:

We have to writer the hypotheses for testing the proportion has increased from 49%. So, the population proportion that is to be tested is 0.49.

As we already know that the null hypotheses always contain equality so,

Null hypotheses: p=0.49

and we have to test whether the proportion has increased from 0.49, so,

Alternative hypotheses: p>0.49

Thus, the hypotheses for testing the proportion has increased from 49% are

Null hypotheses: p=0.49

Alternative hypotheses: p>0.49

We have to find the proportion of sampled customers using loyalty card.

The given sample indicate that 77 out of 135 customers are using loyalty card. So,

p=x/n

where x is the number of favorable outcome and n is total number of outcome.

Here, x=77 and n=135. So,

p=77/135=0.5704 or 57.04%

6 0

3 years ago

Write a real world situation that could be modeled be the equation 120 + 25x =45x

Savatey [412]

Is renting a car
company A charges $120 plus 25 dollars per day

company B charges 45 dollars per day

at how many days will the costs be equal

120+25x
x=days
45x

120+25x=45x
subtract 25x from btoh sdies
120=20x
divide both sdie sb 20
6=x

the answer is 6 days

4 0

3 years ago

Please help me pleasee

ryzh [129]

Answer:

x = y = 64° , z = 20°

Step-by-step explanation:

x = y = $\frac{180-52}{2}$ = 64 °