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3 years ago

1729 math problem which two pairs of numbers have cubes that add up to 1729

Mathematics

1 answer:

RoseWind [281]3 years ago

4 0

Where Are The Two Pairs?/ Finish The Rest Of The Question So I Can Help

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Needs solved now please!

kati45 [8]

Answer:

see explanation

Step-by-step explanation:

Given

(2m + 5n)² = (2m + 5n)(2m + 5n)

Each term in the second factor is multiplied by each term in the first factor, that is

2m(2m + 5n) + 5n(2m + 5n) ← distribute both parenthesis

= 4m² + 10mn + 10mn + 25n² ← collect like terms

= 4m² + 20mn + 25n² ← perfect square trinomial

6 0

2 years ago

Read 2 more answers

A gardener found that he was able to plant 1/4 of a packet of flower seeds in 1/5 of a garden.At this rate how much of the garde

telo118 [61]

Answer: $\frac{4}{5}$ of garden.

Step-by-step explanation:

Given: The area covered by $\frac{1}{4}$ of a packet of flower seeds= $\frac{1}{5}$ of a garden.

The area covered in 1 packet= $4\times\frac{1}{5}$

⇒The area covered in 1 packet= $\frac{4}{5}$ of garden.

Thus, the entire packet of seeds would cover $\frac{4}{5}$ of garden.

3 0

3 years ago

Alex has three less than four times as many baseball cards as his brother jon. If they have 407 baseball cards. how many does ea

natta225 [31]

103 cards

3-4x=407 is the equation

8 0

2 years ago

the volume V of a gas at a constant temperature varies inversely with the pressure P. when the volume is 100 cubic inches the pr

fiasKO [112]

Answer:

The pressure is $20\ psi$

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent an inverse variation if it can be expressed in the form $y*x=k$ or $y=k/x$

In this problem we have

$V*P=k$

where

V is the volume of a gas at a constant temperature

P is the pressure

we have

For $V=100\ in^{3}$ , $P=25\ psi$

step 1

Find the value of k

substitute the values of V and P

$100*25=k$

$k=2,500$

The equation is equal to $V*P=2,500$

step 2

Find the pressure when the volume is 125 cubic inches

For $V=125\ in^{3}$

substitute in the equation and solve for P

$125*P=2,500$

$P=2,500/125=20\ psi$

8 0

3 years ago

your local gas stations are having a price war during the past seven days they have lowered the price of regular gas by $0.2 eac

Serga [27]

<h2>Answer with explanation:</h2>

Let x denotes the number of days and y denotes the total change in gas price ( in dollars).

Given : During the past seven days the price of regular gas is decreased by $0.2 each day.

Rate of decrease =$0.2 per day

Then , Total change in gas price = Rate of decrease x Number of days

i.e. $y= 0.2 \times x$

i.e. $y=0.2x$ (1)

To find the total change in gas price in 7 days , we put x= 7 in (1) , we get

$y=0.2(7)=1.4$

Hence, the total change in gas price in 7 days = $1.4

8 0

3 years ago