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3 years ago

10. How many solutions does this system of equations have? Explain how you know.

Mathematics

1 answer:

Shkiper50 [21]3 years ago

5 0

2 solutions of this system of equation

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Darryl deposits $1,500 into a savings account that has a simple interest rate of 2.7%. Lori deposits $1,400 into a savings accou

igor_vitrenko [27]

Darryl:
Answer:
A = $1,905.00

(I = A - P = $405.00)

Equation:
A = P(1 + rt)

Lori:

Answer:
A = $1,932.00

(I = A - P = $532.00)

Equation:
A = P(1 + rt)

Thus $532-$405= $127 more in Lori's account

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3 years ago

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The volume of a cube is 27 n Superscript 27cubic units. What is the length of one side of the cube? 3 n cubed units 3 n Superscr

NeTakaya

The length of side of cube is $3n^9$ units

Solution:

Given that, volume of cube is $27n^{27}$ cubic units

To find: length of one side of cube

The volume of a cube is given as:

$v = a^3$

Where, "a" is the length of side of cube

Substituting the given value of volume we get,

$27n^{27} = a^3$ ------ eqn 1

We know that,

$27 = 3 \times 3 \times 3 = 3^3$

Substitute the above in eqn 1

$3^3 n^{27} = a^3$

Now again substitute for 27 = 3 x 9

$3^3n^{3.9} = a^3$

Take 3 as common power

$(3n^9)^3 = a^3$

By taking cube roots on both side,

$3n^9 = a\\\\a = 3n^9$

Thus length of side of cube is $3n^9$ units

8 0

3 years ago

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What is 6 divided by 7 in fraction form?

DENIUS [597]

Since 6 divided by 7 is already its simplest form, you would just right it like so.

6/7

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3 years ago

What is the area of the rectangle ?

Jet001 [13]

Answer:

Step-by-step explanation:

8 * 5 = 40

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Solve for x+ 1/3=2x-2 2/3-6x

Tcecarenko [31]

When I solved this problem I got x=-3/5

6 0

3 years ago