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3 years ago

ILL GIVE BRAINLIEST!!!!

Mathematics

1 answer:

g100num [7]3 years ago

5 0

Answer:#of dimes is 15 # of quarters is 10

Step-by-step explanation:method is elimination my multiplication. First equation is x+y=25 multiply it by -10. Second equation is 10x+25y=400. A quarter is .25 and a dime is .10 but to avoid all decimals I multiplied by 10 but it doesn’t matter because I did it on both sides. Use systematic equation solving to get 15y=150 then y=10. Plug it into the first to get x+10=25 subtract to get 15. Mr. Jacobs does get excessive sometimes lol.

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Answer:

Step-by-step explanation:

clay will have

-80+96=16 dollars

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3 years ago

Suppose in a math class of 22 students, 14 are boys and 8 are girls. On the final exam, 4 boys and 6 girls made an A grade. 1) I

DerKrebs [107]

Answer:

1 is A 2 Is B

Step-by-step explanation:

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3 years ago

John is interested in purchasing a multi-office building containing five offices. The current owner provides the following proba

Elenna [48]

Answer:

Option B.

Step-by-step explanation:

The given table is:

Number of Lease Offices : 0 1 2 3 4 5

Probability : 5/18 1/4 1/9 1/18 2/9 1/12

The expected probability is

Expected probability = $\sum_{i=0}^5 x_{i}p(x_i)$

Expected probability = $0p(0)+1P(1)+2P(2)+3P(3)+4P(4)+5P(5)$

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3 0

3 years ago

The revenue for a business, as a function of units produced, x, is shown below by R(x). C(x) represents the cost of producing x

zavuch27 [327]

Answer:

huh....

Step-by-step explanation:

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3 years ago

How to add and subtract rational numbers in fraction form?

Daniel [21]

First you have to convert the denominators to the Lowest Common Multiple (unless the denominators are equal, of course).

Example 1/4 + 1/2

The LCM of 2 and 4 = 4 so we can write 1/2 as 1*2/2*2 = 2/4.
Now we can add:-
1/4 + 2/4 = 3/4.

Same thing goes for subtraction.

Example 2:-

5/6 - 1/7 :-
LCM of 6 and 7 = 6*7 = 42 so we have:-
5*7 / 6*7 - 1*6 / 7*6
= 35/42 - 6/42 = 29/42

5 0

3 years ago