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3 years ago

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A man receives Rs. 60 for the first week and Rs. 3 more each week than the preceeding week. How much does he earns by the 20th w

eek

1 answer:

yarga [219]3 years ago

8 0

60+63+66+69+72+75+78+81+84+87+90+93+96+99+102+105+108+111+113=1652

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Solve the system by elimination. 4x=−3y−10 9x+2y=6

nadya68 [22]

Answer:

<h2>x = 2, y = -6</h2>

Step-by-step explanation:

$\left\{\begin{array}{ccc}4x=-3y-10&\text{add}\ 3y\ \text{to both sides}\\9x+2y=6\end{array}\right\\\\\left\{\begin{array}{ccc}4x+3y=-10&\text{multiply both sides by 2}\\9x+2y=6&\text{multiply both sides by (-3)}\end{array}\right\\\\\underline{+\left\{\begin{array}{ccc}8x+6y=-20\\-27x-6y=-18\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad-19x=-38\qquad\text{divide both sides by (-19)}\\.\qquad\dfrac{-19x}{-19}=\dfrac{-38}{-19}\\.\qquad \boxed{x=2}$

$\text{Put the value of}\ x\ \text{to the second equation:}\\\\9(2)+2y=6\\18+2y=6\qquad\text{subtract 18 from both sides}\\2y=-12\qquad\text{divide both sides by 2}\\\dfrac{2y}{2}=\dfrac{-12}{2}\\\boxed{y=-6}$

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4 years ago

Figure 1 is similar to figure 2

jonny [76]

Answer:

True

Hope this helps. Have a great day. :)

-wfz

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3 years ago

A person’s age and the number of siblings.

irakobra [83]

Whats the Question ? it doesn't make since you need more too the question

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3 years ago

To the nearest hundred what is the greatest whole number that rounds to 2500 the least whole number

snow_lady [41]

So, we round to hundreds, yes? is this waht i understood?

then the greatest number that will be rounded down to 2500 will be 2549 - the next number, 2550 would be rounded to 2600

and the least would be 2450. 2449 would be rounded down to 2400.

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4 years ago

Which number best represents thirty-one feet below sea level?

Natali [406]

Answer:

c

Step-by-step explanation:

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3 years ago

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