2 years ago

Convert the following base numbers

Mathematics

1 answer:

topjm [15]2 years ago

5 0

350 because of the concert I’m just kindling I need points

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Mark has twice as many quarters as nickels and three more dimes than nickels. He has 4.20 in all. How many of each type of coin

Firlakuza [10]

Answer:

Number of nickels = 6

number of dimes = 9

number of quarters =12

Step-by-step explanation:

Let 'q' be the number of quarters and 'n' be the number of nickels

and 'd' be the number of dimes

twice as many quarters as nickels

$q=2n$

three more dimes than nickels.

$d=3+n$

1 nickel = 5 cents

1 dime = 10 cents

1 quarter = 25 cents

4.20 dollars = 420 cents

$5n+10d+25q=420$

replace q and d in the above equation

$5n+10(3+n)+25(2n)=420$

$5n+30+10n+50n=420$

$65n+30=420$

Subtract 30 from both sides

$65n=390$

divide both sides by 65

n=6

Number of nickels = 6

number of dimes = $3+n=3+6=9$

number of quarters = $2n=2(6)= 12$

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3 years ago

The variables x and y vary directly. Use the values to find the constant of proportionality, k. Then write an equation that rela

Alexxx [7]

Answer:

y=(5/3)x

Step-by-step explanation:

Since y varies directly with x, then the constant of proportionality is equal to k=y/x. Since y/x=20/12=5/3, then k=5/3. This means the equation to relate x and y is y=(5/3)x

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2 years ago

What is 4 3/4 minus 1/3

murzikaleks [220]

Answer:

4 & 5/12

Step-by-step explanation:

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2 years ago

How much is 2/3 cups plus 1 1/4 cups

Schach [20]

Answer:

$1\frac{11}{12}$

Step-by-step explanation:

$\frac{2}{3}+1\frac{1}{4}=\frac{2}{3}+\frac{5}{4}=\frac{8}{12}+\frac{15}{12}=\\ \\=\frac{8+15}{12}=\frac{23}{12}=1\frac{11}{12}$

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Simplify 2x - 3(-4x + 2 )

OleMash [197]

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Read 2 more answers

Convert the following base numbers​

Convert the following base numbers