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2 years ago

From Denver to Chicago = 3 in. If the scale is 1 in = 300 miles, find

Mathematics

1 answer:

bogdanovich [222]2 years ago

3 0

Answer:

900miles

Step-by-step explanation:

If 1 in=300 miles

Then 3 in will be =3 × 300 giving us 900

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If you play imvu send me 10k tyvm. my username is "shoinks"

bixtya [17]

Answer:

lil shawty

Step-by-step explanation:

4 0

3 years ago

The sum of 3 consecutive number multiples of 6 is 162 find thesse numbers

MAXImum [283]

let the numbers are x , x+1 ,x+2

∴ 6 [ x + (x+1) +(x+2) ] = 162

∴ x + (x+1) + (x+2) = 162/6 = 27

∴3x + 3 = 27

∴ 3x = 27 - 3 = 24

∴ x = 24/3 = 8

<u>So, the numbers are 8 , 9 , 10</u>

7 0

3 years ago

SELECT ALL THAT APPLY. In a population of 250 students, 60% are Whites, 20% are Latinos, 15% are Blacks, and 5% others. In a pro

Sophie [7]

In a proportionate stratified sample of 120, there are 72 Whites, 24 Latinos, 18 Blacks and 6 others.

Proportionate Stratified Sample

A proportionate stratified sample is one in which the size of the strata in the sample is proportional to the size of the strata in the population; in other words, the chance of selecting a unit from a stratum depends on the relative size of that stratum in the population.

Calculating the Proportionate Stratified Sample

The given percentage of -

Whites = 60%

Latinos = 20%

Blacks = 5%

Strength of the sample = 120

⇒ Number of Whites = 60% of 120

= 0.6 × 120

=72

Number of Latinos = 20% of 120

= 0.2 × 120

=24

Proportionate Stratified Sample of Blacks and Others

Count of Blacks = 15 % of 120

= 0.15 × 120

= 18

Count of others = 5% of 120

= 0.05 × 120

Thus, in a Proportionate Stratified Sample of 120, 72 are Whites, 24 are Latinos, 18 are Blacks, and 6 are others.

Learn more about Proportionate Stratified Sample here:

brainly.com/question/20692763

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6 0

1 year ago

5a - 2(4a + 1) + 6(4a - 1) simplify it show workpls

pickupchik [31]

Answer:

21a-8

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

A high school class consists of 7 seniors, 10 juniors, 12 sophomores, and 11 freshmen. Exactly 4 of the juniors are female,

jekas [21]

Answer:

1/13

Step-by-step explanation:

There exactly 7 seniors 10 Juniors, 12 sophomores and 11 freshman

in which 4 of the juniors are Female , and exactly 2 of the sophomores are male. Therefore,

10-4= 6 juniors are male

12-2 = 10 female sophomores

Total = 7+10+12+11= 40 students

P(male junior then female soph.)= $\frac{6}{40}\times\frac{10}{39}= \frac{1}{26}$

P(female soph then male junior)= $\frac{10}{40}\times\frac{6}{39}= \frac{1}{26}$

Therefore the final answer will be = 1/26 +1/26= 1/13

6 0

3 years ago