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lozanna [386]
3 years ago
13

Anyone Please helppp meee

Mathematics
1 answer:
denpristay [2]3 years ago
5 0

Answer:

fred had 58 marbles

Step-by-step explanation:

peter= x marbles

Fred= x²-6

together= 66 marbles

(x²-6) +x=66

x=8

Fred had 58 marbles

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The ratio of the profit, material cost and production labour of an article is 5:7:13.
IRINA_888 [86]

Answer:

The cost of producing the article is -3500 (Negative cost)

Step-by-step explanation:

The given parameters are

The ratio of the profit to material cost to production labor = 5:7:13

The amount of the material cost = 840 + Labor cost

Let the total cost = X

Therefore, we have;

The fraction of the total cost that is material cost = 7/(5 + 7 + 13) = 7/25

Therefore, the material cost = 7/25 × X

The fraction of the total cost that is labor cost = 13/(5 + 7 + 13) = 13/25

Therefore, the labor cost = 13/25 × X

However, the amount of the material cost = 840 + Labor cost, which gives;

7/25 × X = 13/25 × X + 840

7/25 × X - 13/25 × X = 840

-6/25 × X= 840

X = 840/(-6/25) = 840×(-25/6) = -3500

The cost of producing the article = -3500.

8 0
3 years ago
In assessing the validity of any test of hypotheses, it is good practice to a. examine the probability model that serves as a ba
ehidna [41]

Answer:

The Correct option is - d. all of the above.

Step-by-step explanation:

To find - In assessing the validity of any test of hypotheses, it is good practice to

a. examine the probability model that serves as a basis for the test by using exploratory data analysis on the data.

b. determine exactly how the study was conducted.

c. determine what assumptions the researchers made.

d. all of the above.

Proof -

All the Given options are correct to study the validity of a hypothesis test.

So,

The Correct option is - d. all of the above.

4 0
3 years ago
The ratio of Harry's money to Lincoln's money is 6:5. If Harry and Lincoln have a total of $220, how much money in dollars does
RideAnS [48]
Hehas 337 dollrs because 220:65% is one so that is it
4 0
3 years ago
Let n be a positive integer. We sample n numbers a1, a2,..., an from the set {1,...,n} uniformly at random, with replacement. We
zepelin [54]

Answer:

Step-by-step explanation:

4 0
4 years ago
Help how do I solve this and how do I do it
Alja [10]

Answer:

C. 30+18x

Step-by-step explanation:

6x5=30

6x3=18

30+18x

3 0
4 years ago
Read 2 more answers
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