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3 years ago

Math pls help!! larger number? smaller number?

Mathematics

1 answer:

Georgia [21]3 years ago

5 0

Answer:

larger number = 35

smaller number = 26

Step-by-step explanation:

let larger number be x

and another ( x-9 )

so, x+x-9=61

2x = 70

x = 35

smaller number = 35 - 9

= 26

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To an order of magnitude, how many piano tuners are in New York City? The physicist Enrico Fermi was famous for asking questions

Olin [163]

Suppose that the population of NYC is 10,000,000, and there're average of 3 people per household
= 3.3 million HHs
and 1 in 10 HHs has a piano
= 330,000 pianos

on average, a piano is tuned once a year
= 330,000 tuning per year
= 6,000 tunings per week

suppose a piano tuner works 5 days a week and handling 5 pianos a day. That will be 25 pianos a week

hence, you need 6,000/25 = 240 tuners

hope this helps

4 0

4 years ago

if n represents a number, write an expression for the quantity three less than twice this number divided by the quantity 7 more

Ugo [173]

Answer:

(2n / n^2 + 7) - 3 i think

Step-by-step explanation:

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3 years ago

If one card is drawn from a standard deck of 52 playing cards, what is the probability of drawing a red card?

Greeley [361]

Answer:

1/52

Step-by-step explanation:

6 0

3 years ago

Match the products of rational expressions with their simplest forms.

Alborosie

Lets simplify each one of the rational expressions using the product rule of exponents: $a^n*a^m=a^{n+m}$ and the quotient rule of exponents: $\frac{a^n}{a^m} =a^{n-m}$ .

1. $\frac{-3x^2}{2y^2} * \frac{y^2}{9x} =- \frac{x}{6} = \frac{-1}{6} x$

2. $\frac{5y^2}{10x^2} * \frac{4x^2}{y} =2y$

3. $\frac{-9y^2}{5x} * \frac{-10x^2}{3y} =6xy$

4. $\frac{14x^2}{5y} * \frac{-10y}{7x} =-4x$

We can conclude that you should pair the rational expressions with their simplest form as follows:
$6xy-----\ \textgreater \ \frac{-9y^2}{5x} * \frac{-10x^2}{3y}$
$\frac{-1}{6} x-----\ \textgreater \ \frac{-3x^2}{2y^2} * \frac{y^2}{9x}$
$-4x-----\ \textgreater \ \frac{14x^2}{5y} * \frac{-10y}{7x}$
$2y-----\ \textgreater \ \frac{5y^2}{10x^2} * \frac{4x^2}{y}$

7 0

3 years ago

A road sign gives drivers information about traffic on busy highways. One sign shows "15 miles in 20 minutes." What is the speed

Leto [7]

Answer:

Step-by-step explanation:

1 hour = 60 minutes

15 / 20 = x / 60

solve for x

15*3 / 20*3 = x / 60

45 / 60 = x / 60

denominators cancel

x = 45

4 0

3 years ago