5.5x10^9 times 2.3x10^7

Mathematics

2 answers:

hjlf3 years ago

8 0

Answer:

Step-by-step explanation:

So 5.5 x 10^9 times 2.3 x 10^7 would equal to 126 500 000.

JulsSmile [24]3 years ago

6 0

$5.5\times 10^9\cdot 2.3\times 10^7\implies (5.5\cdot 2.3)\times 10^910^7
\\ \quad \\
\textit{recall the exponent rules}
\\ \quad \\
(5.5\cdot 2.3)\times 10^910^7\implies (5.5\cdot 2.3)\times 10^{9+7}$

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Costa is planning a lunch banquet. The equation C=450+28g models the relation between the cost in dollars, C, of the banquet and

algol13

Answer:

When the number of guests is 0, the cost would be $450.

Step-by-step explanation:

We have been given an equation $C=450+28g$ , which models the relation between the cost in dollars, C, of the banquet and the number of guests, g.

We can see that our given equation in slope-intercept form of equation $y=mx+b$ , where, m represents slope of line and b represents y-intercept or initial value.

We can see that slope for our given equation is 28 and the C-intercept is 450.

The C-intercept tells us that when there are 0 guests in the banquet, the cost would be $450.

3 0

3 years ago

2X plus Y equals 7 <br> 3X minus 4Y equals five

Dvinal [7]

$\left \{ {{2x+y=7\ \ | *4} \atop {3x-4y=5}} \right. \\\\ \left \{ {{8x+4y=28} \atop {3x-4y=5}} \right. \\+----\\Addition\ method\\\\
11x=33\ \ \ | divide\ by\ 11\\
x=3\\\\y=7-2x\\
y=7-2*3=7-6=1\\\\Solution:\\ \left \{ {{y=1} \atop {x=3}} \right.$