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3 years ago

10

Help please............

1 answer:

lesantik [10]3 years ago

4 0

Lilla got 21/25 meaning she only missed 4 questions which means she got a 96/100. Tim scored 41/50 meaning he missed 9 questions meaning he got a 91/100 therefore being the reason Lilla got a higher score than Tim being that she has a 96 versus his 91. Hope that helps!!!

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Which equation in slope would you multiply x by on both sides A. X/1=3/Y B. 3Y=X C. X/Y=3/1 D. Y=3X E. Y=1/3X ???????????

Marta_Voda [28]

The answer to the question is C

3 0

3 years ago

Use the given x and y values to write a direct variation<br> equation.<br> x = 2, y = 30

exis [7]

Answer:

y = 15x

Step-by-step explanation:

Given x and y are in direct variation then the equation relating them is

y = kx ← k is the constant of variation

To find k use the condition x = 2, y = 30, then

30 = 2k ( divide both sides by 2 )

15 = k

y = 15x ← equation of variation

5 0

3 years ago

Read 2 more answers

Find the size of each of two samples (assume that they are of equal size) needed to estimate the difference between the proporti

hodyreva [135]

Answer:

The sample size n = 4225

Step-by-step explanation:

We will use maximum error formula = $\frac{z_{a} S.D}{\sqrt{n} }$

but we will find sample size "n"

$\sqrt{n} = \frac{z_{a} S.D}{maximum error}$

Squaring on both sides , we get

$n = (\frac{z_{a} S.D}{maximum error})^2$

Given 99% confidence interval (z value) = 2.56

given maximum error = 0.02

$n = (\frac{z_{a} p(1-p)}{maximum error})^2$

n≤ $(\frac{2.56X\frac{1}{2} }{0.02}) ^{2}$ ( here S.D = p(1-p) ≤ 1/2

on simplification , we get n = 4225

<u>Conclusion</u>:

The sample size of two samples is n = 4225

<u>verification</u>:-

We will use maximum error formula = $\frac{z_{a} S.D}{\sqrt{n} }$ = $\frac{2.56 1/2}{\ \sqrt{4225} }$ = 0.0196

substitute all values and simplify we get maximum error is 0.02

4 0

3 years ago

What is the least common denominator for the fractions 1/3 and 1/6

Hoochie [10]

Answer:

least common denominator=6

Step-by-step explanation:

For the fractions, 1/3 and 1/6th, 3*2=6. making the fraction 2/6 and leaving the other the same 1/6th.

3 0

2 years ago

Marcy wants to buy a new dress that costs $56.77. She has been babysitting to earn the

SCORPION-xisa [38]

Answer:

she needs $4.52

Step-by-step explanation:

(9.5*5.50)+x=56.77

52.25+x=56.77

x=56.77-52.25

x=4.52

4 0

3 years ago