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stellarik [79]
3 years ago
11

Find the common difference 1, 201 , 401 , 601

Mathematics
1 answer:
Simora [160]3 years ago
5 0
The answer will be it adds up by 200
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Please help with these
MatroZZZ [7]
Set up a proportion.

\frac{3~minutes}{2~questions} = \frac{x~minutes}{12~questions}

Cross multiply.

2x=36
x=12

It would take her 12 minutes.

-----------------------------------------

Formula for surface area of a cube: 6a² where a=20.

6 x (20)²
6 x 400
= 2400

Surface area: 2400 cm

----------------------------------------------

Mean absolute deviation: The average distance from each number in the set to the mean of the set.

Mean of the set: \frac{(3+8+10+12+15)}{5} =  \frac{48}{5} = 9.6

9.6-3=6.6
9.6-8=1.6
10-9.6=0.4
12-9.6=11.4
15-9.6=5.4

Mean of 6.6, 1.6, 0.4, 11.4, and 5.4: \frac{(6.6+1.6+0.4+11.4+5.4)}{5} =  \frac{25.4}{5} = 5.08
8 0
3 years ago
Rachel jogged along a trail that was 1/4 of a mile long. she jogged around the trail 8 times. How many mile did Rachel jogged?
Alex777 [14]
She jogged 2 miles, because 1/4 is 25%, if she ran the trail 8 times she ran the trail 1/4 * 8 which is 2 miles.
6 0
3 years ago
3.25 is what percent of 125?
melomori [17]

Answer:

4.0625

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
mr. devito was ordering pencils for apl fourth grade students. There are 118 fourth graders. Pencils come in packs of 6. He need
sweet [91]

Answer:

Mr. devito needs to buy 40 packs

Step-by-step explanation:

Given:

Total number of fourth grade students = 118

The number of pencils in one pack = 6

The number pencil each student gets   =2

To find:

The number of packs of pencils that is to be bought  = ?

Solution:

To give all the 118 fourth grade students each 2 pencils , the total number of pencils needed will be

= >  118 \times 2

=>  236 Pencils

We know that a pack contains 6 pencils, so the number of pack that has to be bought , in order to have 236 pencils will be

=> \frac{ \text{total number of pencils}}{\text{ number of pencils per pack }}

On substituting the values

=> \frac{236}{6}

=> 39.33

=> 40

3 0
2 years ago
Three poultry farms B1, B2, and B3 supply chicken eggs to the same local market. The market performs some quality testing on the
ipn [44]

Answer:

a. 0.58

b. 0.78

Step-by-step explanation:

a. The probability of egg come from B1 or B2

P(B1) = 3000/10000 = 0.3

P(B2) = 4000/10000 = 0.4

P(P1 ∪ B2) = 0.3 + 0.4 -(0.3)(0.4)

P(P1 ∪ B2) = 0.7 - 0.12

P(P1 ∪ B2) = 0.58

b. The probability that the market received an egg that is acceptable

P(received an egg that is acceptable) = P(B1 acceptable) + P(B2 acceptable) + P(B3 acceptable)

P(received an egg that is acceptable) = 0.80*3000 + 0.90*4000 + 0.60*3000 / 10000

P(received an egg that is acceptable) = 2400 + 3600 + 1800 / 10000

P(received an egg that is acceptable) = 7800 / 10000

P(received an egg that is acceptable) = 0.78

4 0
3 years ago
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