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kipiarov [429]
2 years ago
9

Roger earns $24 a week mowing lawns. he spends 1/6 on lunch and 2/3 on music. He saves the rest. How many dollars does Roger sav

e?
Mathematics
2 answers:
vlabodo [156]2 years ago
8 0
The other guy did it wrong, it's 2/3 of the original 24. So 1/6 is 4 so it is $20 then 2/3 of 24 is $16 so$20-$16 will equal $4 left
Delvig [45]2 years ago
5 0
Alright so you have $24 dollars. 1/6 of 24 is 4 so now you have $20 dollars left. 2/3 of 20 is 13.333. So you subtract 13.333 from 20 to get a final anwser of 6.6666666667 dollars that roger saved. Hope i could help. 
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Help please <br> Brainiest answer to whoever is correct
MrRissso [65]

Answer:

51

Step-by-step explanation:

since 1 = 39 degrees, it'd be complementary if you were to open it up if it were a C, it would be 90. So since its this way, i believe you would take 39 and do 90 - 39 to get your answer.  Im sorry if this is wrong but i hope it helps you!!

6 0
3 years ago
You are testing the claim that the mean GPA of night students is different from the mean GPA of day students. You sample 30 nigh
kirill [66]

Answer:

Step-by-step explanation:

This is a test of 2 independent groups. The population standard deviations are not known. Let μ1 be the mean GPA of night students and μ2 be the mean GPA of day students.

The random variable is μ1 - μ2 = difference in the mean GPA of night students and the mean GPA of day students.

We would set up the hypothesis.

The null hypothesis is

H0 : μ1 = μ2 H0 : μ1 - μ2 = 0

The alternative hypothesis is

H1 : μ1 ≠ μ2 H1 : μ1 - μ2 ≠ 0

This is a two tailed test.

Since sample standard deviation is known, we would determine the test statistic by using the t test. The formula is

(x1 - x2)/√(s1²/n1 + s2²/n2)

From the information given,

μ1 = 2.35

μ2 = 2.58

s1 = 0.46

s2 = 0.47

n1 = 30

n2 = 25

t = (2.35 - 2.58)/√(0.46²/30 + 0.47²/25)

t = - 1.8246

The formula for determining the degree of freedom is

df = [s1²/n1 + s2²/n2]²/(1/n1 - 1)(s1²/n1)² + (1/n2 - 1)(s2²/n2)²

df = [0.46²/30 + 0.47²/25]²/[(1/30 - 1)(0.46²/30)² + (1/25 - 1)(0.47²/25)²] = 0.00025247091/0.00000496862

df = 51

We would determine the probability value from the t test calculator. It becomes

p value = 0.0746

Since alpha, 0.05 < than the p value, 0.0746, then we would fail to reject the null hypothesis.

3 0
3 years ago
A fruit stand has to decide what to charge for their produce. They need $10 for 44 apples and 44 oranges. They also need $15 for
Bess [88]

Step-by-step explanation:

Let x be the price of an apple and y be the price of an orange.

We have been given that a fruit stand need $10 for 4 apples and 4 oranges. We can represent this information as:

4x+4y=10...(1)

We are also told that they need $15 for 6 apples and 6 oranges. We can represent this information as:

6x+6y=15...(2)

Therefore, our desired system of equations will be:

4x+4y=10...(1)

6x+6y=15...(2)


4 0
3 years ago
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IceJOKER [234]

Answer:

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Step-by-step explanation:

Just divide 35 and 45 by 5.

6 0
2 years ago
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ruslelena [56]
Take 3.27 and divide that by 1.09  (for the oranges)
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then take 4.76 and divide that by 1.19       (for the pears)
4.76/1.19=4lbs. of pears
add 4+3 to get how many lbs. in all
4+3=7

3 0
2 years ago
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