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Brums [2.3K]
3 years ago
14

adult for every 6 children. One class has 24 children; one has 26 children; and the third has 28 children. Each class has 1 teac

her. How many OTHER adults are needed for the trip?
Mathematics
1 answer:
ycow [4]3 years ago
6 0

Answer:

10 adults


Step-by-step explanation:

1 adult per 6 children

there already 1 adult per class so 6 children from each class are covered

24 - 6 = 18

26 - 6 =20

28 - 6 = 22



18 + 20 + 22 =  60

60 ÷ 6 = 10

so 10 more adults are needed


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An electrical engineer wishes to compare the mean lifetimes of two types of transistors in an application involving high-tempera
Olin [163]

Answer:

(115.2642, 222.7358).

Step-by-step explanation:

Given data:

type A: n_1=60, xbar_1=1827, s_1=168

type B: n_2=180, xbar_2=1658, s_2=225

n_1 = sample size 1, n_2= sample size 2

xbar_1, xbar_2 are mean life of sample 1 and 2 respectively. Similarly, s_1 and s_2 are standard deviation of 1,2.

a=0.05, |Z(0.025)|=1.96 (from the  standard normal table)

So 95% CI is

(xbar_1 -xbar_2) ± Z×√[s1^2/n1 + s2^2/n2]

=(1827-1658) ± 1.96×sqrt(168^2/60 + 225^2/180)

= (115.2642, 222.7358).

8 0
3 years ago
Mikey had 104 nickels and 88 dimes she wants to divide the coins into group of each group will have the same number of nickels i
coldgirl [10]

Answer:

8

Step-by-step explanation:

8 can go into 88 and it can also go into 104 too and 8 is the largest number so the answer is 8

3 0
2 years ago
Find the distance from Q: (5.7 , 2.6) to R: (-3, 5.9)
Firdavs [7]
It would be around 9.304. so you'd round to the nearest tenth 9.3
6 0
3 years ago
Read 2 more answers
Will mark as Brainliest...
tatiyna

Answer:

280 ft squared

Step-by-step explanation:

To find the area of the nonshaded portion, we can find the area of the entire floor and then subtract the shaded area.

The total area is that of a rectangle: 30 * 15 = 450 ft squared.

Now, the shaded region is made up of a rectangle and a triangle.

- The rectangle has length 8 and width 10, so its area is 10 * 8 = 80 ft squared.

- The triangle has base 12 and height 15, so using the area of a triangle formula: A=(bh)/2 (where b is the base and h is the height) = (12 * 15)/2 = 180/2 = 90 ft squared.

- The total shaded region is: 80 + 90 = 170 ft squared

Subtract 110 from 450: 450 - 170 = 280 ft squared.

Thus, the answer is 280 ft squared.

Hope this helps!

8 0
3 years ago
Read 2 more answers
How many solutions can be found for the equation 5x + 3(x − 1) = 10x − x − 5? (4 points)
Svet_ta [14]

Answer:

The correct option is b.

Step-by-step explanation:

To find the number of solutions, we need to solve the equation:

5x + 3(x - 1) = 10x - x - 5

Let's group all the "x" on the equation.  

5x + 3x - 10x + x = 3 - 5              

Now, let's solve for "x".

-x = -2                

x = 2    

Therefore, the equation has one solution. The correct option is b.

I hope it helps you!            

8 0
2 years ago
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