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3 years ago

Nine out of ten students prefer math class over lunch. How many students do not prefer math if 200 students were asked?

1 answer:

3 0

So, 9 out of 10 students prefer class, so, obviously, it would not be 100. It would be 150. So in conclusion, 50 students prefer lunch over math class, whilst 150 other students prefer math class over lunch.

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AURORKA [14]

Obtuse, it does not fit Pythagoreans for a right triangle, two sides are not equal to be isosceles

6 0

3 years ago

If segment EF = 6 and segment FG = 3, which of the following statements are enough to prove that triangles EFI and GFH are simil

klemol [59]

Answer:

lines EI and HG are parallel

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its corresponding sides is proportional

In this problem

If triangles EFI and GFH are similar

then

$\frac{EF}{FG}=\frac{FI}{FH}=\frac{EI}{GH}$

substitute the given values

$\frac{6}{3}=\frac{FI}{FH}=\frac{EI}{GH}$

$2=\frac{FI}{FH}=\frac{EI}{GH}$

If lines EI and HG are parallel

then the triangles are similar by AA Similarity Theorem

therefore

lines EI and HG are parallel

3 0

3 years ago

Read 2 more answers

Please any one help me

ivolga24 [154]

Answer:

k=30

Step-by-step explanation:

The formula for calculating the mean from a frequency table is:

$\displaystyle \overline{x} = \frac{ \sum \: fx}{ \sum f}$

we have

$\sum f = 30$
$\sum f x= 120 + 3k$
$\overline{x} = 7$

So our equation is

$\displaystyle 7= \frac{ 120 + 3k}{30} \\ \implies \dfrac{120 + 3k}{30} = 7$

Solving the equation yields:

$\implies 120 + 3k = 210 \\ \implies 3k = 90 \\ \implies \boxed{k = 30}$

7 0

2 years ago

Read 2 more answers

The product of 1 1/2 and 2 is less than, equal to, or greater than 2

Rus_ich [418]

Answer:

The answer is 1 1/2 < 2

Step-by-step explanation:

If we convert 1/2 into a decimal, we would get .5. Add that to 1 and we get 1.5. Therfore, 2 > 1.5

3 0

3 years ago

Hamburgers cost $2.50 and cheeseburgers cost $3.50 at a snack bar. Ben has sold no more than $30 worth of hamburgers and cheeseb

Mila [183]

Ben could have sold no more than 6 burgers.

6 0

3 years ago

Read 2 more answers