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spin [16.1K]
3 years ago
7

molly has two older twin brothers if you multiply all three of their ages together you get 128 how old is molly and her brothers

Mathematics
1 answer:
seropon [69]3 years ago
5 0

Answer:

8,8 and 2

Step-by-step explanation:

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2/3y=-3x-9 pleaseeeeeeeeee
charle [14.2K]
The slope is -4.500
Hope this helped :)
3 0
3 years ago
At 1 p.m., the number of cars in a parking lot is 78. Given the formula found in the first part of the question, An=78⋅1.09n, es
Harrizon [31]

Answer:

At 6 p.m., the number of cars in a parking lot is 120

Step-by-step explanation:

At 1 p.m., the number of cars in a parking lot is 78.

Given,

A_n=78\cdot 1.09^n

Note that

A_0=78\cdot 1.09^0=78\cdot 1=78

So, 1 p.m. goes for n = 0, then

6 p.m. goes for n = 5

Thus,

A_5=78\cdot 1.09^5\approx 120

4 0
3 years ago
In order to solve the system of linear equations, the coefficients of one of the variables must be the same number but opposite
Mashutka [201]

Answer:

Step-by-step explanation:

because both equations do not have matching numbers for the x or y variable, and both equations are positive you are going to have to multiply each equation by a number  so that there will be at least one variable with the same number but with opposite signs.

it does not matter which variable you choose.

lets use y because 2 and 3 are smaller then 2 and 5.

so lets multiply the first equation by 2 in order to get y equal to 6.

2(2x)+2(3y)=(2)6

(do not forget to multiply what the equation is equal to also)

4x+6y=12

now for the second equation we need y to equal negative 6

-3(5x)+-3(2y)=-3(4)

-15x-6y=-12

now lets put the 2 new equations next to each other and see what we can cancel out

4x+6y=12

-15x-6y=-12

-11x=0

x=0

now plug 0 in for x and solve for y (it does not matter which of the 4 equations you choose to solve.

2(0)+3y=6

3y=6

y=2

so your answer is x=0, y=2

8 0
3 years ago
Am I correct ?<br> ( √2 - √3 )² =1 - √2
Arturiano [62]
You are not correct, the right answer should be 5-2 square root symbol. I couldn't find out how to put one there.
4 0
3 years ago
Simplify: ((x-5)3/2)^2/3<br> X-5<br> (x - 5)^2<br> (x – 5^)3
netineya [11]

Answer:

x - 5

Step-by-step explanation:

((x - 5) {}^{ \frac{3}{2} } ) {}^{ \frac{2}{3} }

(x - 5) {}^{ \frac{3}{2} }  { \times }^{ \frac{2}{3} }

(x - 5) {}^{ \frac{6}{6} }

(x - 5) {}^{1}

Therefore x - 5

7 0
2 years ago
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