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3 years ago

11

Which measurement best describes about how much water is in the Boston aquarium's fish tanks?

1 answer:

kobusy [5.1K]3 years ago

5 0

I would say gallons or tons?

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Tom earns $30 a week mowing lawns. He spends one-tenth of his earnings on lunch and one-fifth of his earnings on music. He save

-BARSIC- [3]

Answer: Tom saves $21

Step-by-step explanation: The monthly earning has been given as $30. The spendings are expressed as fractions of the total earnings. The expenses are as follows;

Lunch = one tenth of the earnings

Lunch = 1/10 x 30

Lunch = 30/10

Lunch = 3

Also he spends the following on music

Music = one fifth of the earnings

Music = 1/5 x 30

Music = 30/5

Music = 6

So he spends a total of 3 plus 6 which equals 9 dollars out of his earnings. His savings becomes

Savings = 30 - 9

Savings = 21

Therefore his savings is $21

3 0

3 years ago

Simplify the radical expression. PLEASE HELP!!!

andrew-mc [135]

√15y*3√81y

√15y*√729y

√10935y^2

√729*15*y2

27y√15

4 0

4 years ago

Read 2 more answers

A plumber charges $25 to come to a home, and $15 per hour for a repair. Which equation gives the total cost, y, for a repair tha

pogonyaev

Answer:

15x + 25 = y

Step-by-step explanation:

$25 is a fixed cost and will have to be paid if the plumber comes and $15 times the number of hours it takes to do the repair is the variable cost. 'x' in this case is the number of hours. So the equation will be 15x + 25 = y

5 0

2 years ago

PLEASE HELP!! This is due today!! - The polynomial function shown has x-intercepts at x= -2, x=0 and x=1. Identify a possible eq

EleoNora [17]

Answer:

f(x)=-x(x+2)(x-1)

Step-by-step explanation:

5 0

3 years ago

Anyone help me. ....

weeeeeb [17]

Answer:

see explanation

Step-by-step explanation:

Using the rules of exponents

All the exponents inside the parenthesis are multiplied by the exponent outside the parenthesis.

Then

$\frac{m^{-7}n^{14} }{m^{-25}n^{40} }$ ÷ $\frac{m^{-21}n^{42} }{m^{-25}n^{40} }$

[ Using the rule $\frac{a^{m} }{a^{n} }$ = $a^{(m-n)}$ ]

= $m^{(-7-14)}$ $n^{(14-(-28)}$ ÷ $m^{(-15-10)}$ $n^{(25-(-15)}$

= $m^{-21}$ $n^{14+28}$ ÷ $m^{-25}$ $n^{25+15}$

= $\frac{m^{-21}n^{42} }{m^{-25}n^{40} }$

= $m^{(-21-(-25))}$ $n^{(42-40)}$

= $m^{(-21+25)}$ n²

= $m^{4}$ n² = $m^{x}$ $n^{y}$ , so x = 4 and y = 2

Then

$m^{x-2y}$ = $m^{4-2(2)}$ = $m^{4-4}$ = $m^{0}$ = 1 ← as required

6 0

3 years ago