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3 years ago

If a=5 and b=6 then what does ab equal

Mathematics

2 answers:

disa [49]3 years ago

8 0

Answer06: 30

Step-by-step explanation:

30 because ab means it is a times b and 5x6 is 30

Alinara [238K]3 years ago

6 0

Answer:

5*6=30

Step-by-step explanation:

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Select the correct answer. Which set of coordinates satisfies the equations x − 2y = -1 and 2x + 3y = 12? A. (1, 2) B. (3, 1) C.

alekssr [168]

Answer:

The coordinates that satisfy the equations will be: (3, 2)

Hence, <em>option C</em> is correct.

Step-by-step explanation:

Given the equations

$x\:-2y\:=-1;\:2x\:+\:3y=12$

solving the equations to find the solution values (coordinates)

$\begin{bmatrix}x-2y=-1\\ 2x+3y=12\end{bmatrix}$

$\mathrm{Multiply\:}x-2y=-1\mathrm{\:by\:}2\:\mathrm{:}\:\quad \:2x-4y=-2$

$\begin{bmatrix}2x-4y=-2\\ 2x+3y=12\end{bmatrix}$

$2x+3y=12$

$-$

$\underline{2x-4y=-2}$

$7y=14$

$\begin{bmatrix}2x-4y=-2\\ 7y=14\end{bmatrix}$

solve for y

$7y=14$

$y=2$

$\mathrm{For\:}2x-4y=-2\mathrm{\:plug\:in\:}y=2$

$2x-4\cdot \:2=-2$

$2x=6$

$\mathrm{Divide\:both\:sides\:by\:}2$

$\frac{2x}{2}=\frac{6}{2}$

$x=3$

$\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:}$

$x=3,\:y=2$

Therefore, the coordinates that satisfy the equations will be: (3, 2)

Hence, <em>option C</em> is correct.

7 0

3 years ago

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9 students volunteer for a committee. How many different 2-person committees can be chosen?

asambeis [7]

It is definitely going to be 72

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3 years ago

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A family paid 23,100 as a down payment for a home if this represents 14% of the price of the home find the price of the home

IrinaVladis [17]

The answer is $42966

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4 years ago

Destiny said that 0.6 divided by 2 equals 0.3 is she correct

Reil [10]

Answer:

Yes

Step-by-step explanation:

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3 years ago

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32. You plan to purchase items for $4000 and will finance the cost with a fixed installment

Paul [167]

Answer:

Amount of finance charge = $800

Interest rate = 5% per year

Step-by-step explanation:

Given:

Cost of item = $4,000

Per month payment = $100

Number of month = 48 month = 48 /12 = 4 year

Find:

Amount of finance charge

Interest rate

Computtaion:

Total amount pay = 100 x 48

Total amount pay = $4,800

Amount of finance charge = Total amount pay - Cost of item

Amount of finance charge = 4,800 - 4,000

Amount of finance charge = $800

Interest = P x r x T

800 = 4,000 x r x 4

800 = 16,000 x r

Interest rate = 5% per year

7 0

3 years ago