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2 years ago

Bry blew 91 bubbles. Ken blew 7 bubbles. How many times as many bubbles did Bry blow?

Mathematics

1 answer:

RideAnS [48]2 years ago

7 0

Answer:

Bry blew 13 times as many bubbles as Ken.

Step-by-step explanation:

because 91/7=13

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4. BASEBALL CARDS Ren and Chet nave

cricket20 [7]

Answer:

Chet has 14 baseball cards.

Step-by-step explanation:

Ren has 27 cards, which is 13 more than what Chet has. So you subtract. 27-13=14.

5 0

3 years ago

If p and q vary inversely and p is 17 when q is 4, determine q when p is equal to 2.

Maslowich

Answer: what the hec... what kind of question-

Step-by-step explanation:

6 0

3 years ago

write two expressions that could be used to help you determine the new cost of a $415 television after adding a 6% sales tax

bearhunter [10]

1. 415 x 1.06 =
2. 415 + (415 x 0.06) =

8 0

3 years ago

How do I figure out what 1/10 of 6000 is?

alisha [4.7K]

The way I like to figure out problems like this is to write it out like,

1/10 = x/6000
(One over ten equals x over 6000)

Then you find out how much you multiplied 10 by to get 6000. To do this you can divide 6000 by 10 getting 600. The rule "what you do to the bottom you have to do to top" in this equation. So since you multiplied the bottom by 600 you have to multiply the top by 600 as well. 600 times 1 is just 600.

So your answer is, 600 is 1/10 of 6000.

Hope this helps and isn't too confusing.

5 0

3 years ago

A college entrance exam company determined that a score of 24 on the mathematics portion of the exam suggests that a student is

seraphim [82]

Answer:

a) The Z -value 2.397 < 2.576 at 99% or 0.01% level of significance

Null hypothesis is accepted at 0.01% level of significance

They score is above 24 on the math portion of the exam

b)

Null Hypothesis: There is no significance difference between the college level mathematics and math courses in high school

H₀: μ = 24

Alternative Hypothesis: H₁: μ ≠ 24

Step-by-step explanation:

Step(i):-

Given random sample 'n' = 250

Given data sample mean x⁻ = 24.5

Standard deviation = 3.3

Null Hypothesis: There is no significance difference between the college level mathematics and math courses in high school

H₀: μ = 24

Alternative Hypothesis: H₁: μ ≠ 24

test statistic

$Z = \frac{x^{-} - mean}{\frac{S.D}{\sqrt{n} } }$

$Z = \frac{24.5 - 24}{\frac{3.3}{\sqrt{250} } } = \frac{0.5}{0.2087} = 2.397$

a) 99% or 0.01% level of significance

Level of significance ∝ = 0.01

$Z_{\frac{\alpha }{2} } = Z_{\frac{0.01}{2} } = Z_{0.005} =2.576$

The Z -value 2.397 < 2.576 at 99% or 0.01% level of significance

Null hypothesis is accepted at 0.01% level of significance

They score is above 24 on the math portion of the exam

b) 95% or 0.05% level of significance

Level of significance ∝ = 0.05

$Z_{\frac{\alpha }{2} } = Z_{\frac{0.05}{2} } = Z_{0.025} = 1.96$

The Z -value 2.397 > 1.96 at 95% or 0.05% level of significance

Null hypothesis is Rejected at 0.05% level of significance

They score is below 24 on the math portion of the exam

6 0

3 years ago