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3 years ago

Please help me solve this problem

Mathematics

2 answers:

Tcecarenko [31]3 years ago

6 0

Answer:

x=2

Step-by-step explanation:

6x+1=x+11

1st step:

5x=10

2nd Step:

x=2

ruslelena [56]3 years ago

3 0

Answer:

x=2

Step-by-step explanation:

because if you put the equation as in x+11=6x+1 and do the equation you'll get x=2

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Find four numbers that form a geometric progression such that the third term is greater than the first by 12 and the fourth is g

olchik [2.2K]

If $x$ is the first number in the progression, and $r$ is the common ratio between consecutive terms, then the first four terms in the progression are

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We want to have

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In the second equation, we have

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So now we have

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3 years ago

A person spends 1/5 of his salary on rent, 3/7 on food, 1/3 on other expenses and saves the rest. If she earns $21,000 per month

sukhopar [10]

Answer:

$9600 saving / year

Step-by-step explanation:

1/5 of $21000 = 21000 / 5 = $4200 / month on rent

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total savings/month = salary/month - rent/month - food/month - other expenses/month

total savings/month = 21000 - 4200 - 9000 - 7000

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1 year ago

Which expressions are equivalent?

shusha [124]

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4 years ago

Read 2 more answers

a jar contains nickels and pennies. there are 56 coins in the jar in all. the total value of the coins is 1.52. how many pennies

nevsk [136]

1 penny is just 1c
one nickel is 5 pennies or 5c

alrite...

p = amount of pennies in the jar
n = amount of nickels in the jar

we know there are 56 coins in the jar, thus whatever "p" and "n" are,

p + n = 56

we also know, the total value of all pennies and nickels is one buck and 52 cents, or 1.52.. that's 152 pennies.

now, we know there are 5 pennies in one nickel, so in "n" nickels, there are 5*n pennies, or 5n, thus

p + 5n = 152

$\bf \begin{cases}
p+n=56\implies \boxed{n}=56-p\\
p+5n=152\\
----------\\
p+5\left( \boxed{56-p} \right)=152
\end{cases}$

solve for "p", to see how many penny coins are there.

what about the nickels? well, n = 56 - p.

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3 years ago