All categories

2 years ago

Pls help 6th grade math ill be adding brainlist

Mathematics

2 answers:

iren2701 [21]2 years ago

4 0

Answer:

300 is the answer as only 27% is given we calculated of 100%.

bagirrra123 [75]2 years ago

4 0

1. 22 students is 40% of 55

2. 24 red marbles is 40% of 60 marbles

3. 15% of $9 is $1.35

4. 12 is 6% of 200

5. Bethany sent 9 text messages to her friend yesterday.

6. There where 17.01 people in the survey.

7. The sales tax rate is 6.5%.

8. There were 10(0.1) from 18-29 that voted in the election.

9. There were 35(0.35) from 50-64 that voted in the election.

10. There were 25(0.25) of over 64 year old's that voted in the election.

11. Sahli is incorrect because there is 30 people within ages 30-49. I think he came up with that answer so quickly because 30 + 49 = 1470 and divided by 14 = 105 with this you add 30 and get 135.

You might be interested in

What is the area of this shape?

AlexFokin [52]

Answer: 10

Step-by-step explanation:

You times 4 and 5 then you divide in half because it is a triangle

5 0

2 years ago

Select the statement that describes this expression: 1/2 x (734 − 246).

Furkat [3]

Answer:

The value of given expression is 244.

Step-by-step explanation:

The given expression is $\dfrac{1}{2}\times (734 - 246)$ .

We need to simply the above expression.

First of all, we will subtract 246 from 734. By doing so, we get 488.

Now, we can divide 488 by 2.

As a result we get 244.

So, the value of given expression is 244.

6 0

2 years ago

An educational psychologist wishes to know the mean number of words a third grader can read per minute.

Rama09 [41]

Answer: 208.

Step-by-step explanation:

The formula to find the minimum sample size is given by :-

$n= (\dfrac{z^*\times \sigma}{E})^2$ (1)

, where z* = critical z-value (two tailed).

$\sigma$ = Standard deviation ( from prior study ) and E = Margin of error.

As per given , we have

Margin of error : E= 0.29

Confidence level = 85%

Significance level = $\alpha=1-0.85=0.15$

Using z-table , the critical value (two -tailed)= $z^*=z_{\alpha/2}=z_{0.15/2}=z_{0.075}=1.439$

As per previous study , Variance = $\sigma^2=8.41$

$\sigma=\sqrt{8.41}=2.9$

Now, the required minimum sample size = $n= (\dfrac{(1.439)\times (2.9)}{0.29})^2$ [Substitute the values in formula (1)]

$n=(14.39)^2$

$n=207.0721\approx208$ [ Round to the next integer]

Hence, the minimum number of third graders that must be included in a sample = 208.

5 0

3 years ago

Marisol is making a rectangular wooden frame. She wants the length of the frame to be no more than 12 inches. She has less than

NISA [10]

Answer:

a i the answer

Step-by-step explanation:

l ≤ 12

2l + 2w < 30

6 0

2 years ago

Read 2 more answers

What is the area of a square rug that measures 6 feet on a side

erastovalidia [21]

Answer:

Step-by-step explanation:

A square has equal sides.

Area= lenth * width

6*6=36

4 0

2 years ago

Read 2 more answers