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3 years ago

Can somebody help me out wii this pleaseee ??

Mathematics

1 answer:

alexira [117]3 years ago

5 0

Z= 105 y= (3y+42)=105

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rick spent 20% of his monthly salary on rent, 25% of the remainder he spent on food and saved the rest. If he saved $600 each mo

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the answer is 360

Step-by-step explanation:

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Consider the scale drawing and actual drawing of an office. A smaller rectangle has a length of 2.5 inches and width of 1.5 inch

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6.8 cm I hope it work pls mark me brainlest

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3 years ago

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Sindi borrowed an amount of money from his father to open the Salon. The loan will be paid back by means of payments of R25 000

amm1812

The present value of the loan will be = R36,250

<h3>Calculation of the present value</h3>

The principal capital (P) = R25 000

Interest rate for the payment (R)= 7.5%

Time for the payment (T)= 6 years

Therefore simple interest = P×T×R/100

= 25,000×6×7.5/100

= 250×6×7.5

= R11,250

The present value of the loan will be;

= 25,000 + 11,250

= R36,250

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brainly.com/question/20690803

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2 years ago

Solve the linear eqvations by matrix inversion method 2x -2y = 4 , 3x + 2y = 6

Alex73 [517]

Answer:

The answer is below

Step-by-step explanation:

A linear graph has an equation of the form:

y = mx + b,

where y and x are variables, m is the slope (rate of change) of the graph and b is the y intercept (value of y when x is 0).

Given that:

2x -2y = 4 , 3x + 2y = 6

The matrix form of the equation is:

AX = B

$A=\left[\begin{array}{cc}2&-2\\3&2\end{array}\right] ,X=\left[\begin{array}{c}x\\y\end{array}\right] ,B=\left[\begin{array}{c}4\\6\end{array}\right] \\\\Therefore:\\\\\left[\begin{array}{cc}2&-2\\3&2\end{array}\right] \left[\begin{array}{c}x\\y\end{array}\right] =\left[\begin{array}{c}4\\6\end{array}\right] \\\\\left[\begin{array}{c}x\\y\end{array}\right] =\left[\begin{array}{cc}2&-2\\3&2\end{array}\right]^{-1} \left[\begin{array}{c}4\\6\end{array}\right] \\\\$

$\left[\begin{array}{c}x\\y\end{array}\right] =\left[\begin{array}{cc}0.2&0.2\\-0.3&0.2\end{array}\right] \left[\begin{array}{c}4\\6\end{array}\right] \\\\\left[\begin{array}{c}x\\y\end{array}\right] =\left[\begin{array}{c}2\\0\end{array}\right]$

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3 years ago

Simplify<br> i3<br> a. -I<br> b. -1 <br> c. I<br> d. 1

Sholpan [36]

i3 simplified is c. I

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3 years ago

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