3 years ago

The exact answer please

Mathematics

1 answer:

shtirl [24]3 years ago

3 0

Answer:

$36.42 or $36.72

Step-by-step explanation:

different answers depends on order

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Step-by-step explanation:

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3 years ago

The sum of prime number<br> less than x is 58<br> find an integer value for x

s344n2d4d5 [400]

Answer:

but it can be 18 too

cuz the q doesn't tell us that the value of x has to be a prime no.

Step-by-step explanation:

2+3+5+7+11+13+17=58

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Step-by-step explanation:

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2 years ago

-2x-y=-9<br> 5x-2y=18<br> substitution

KIM [24]

$-2x-y=-9 \\
5x-2y=18 \\ \\
\hbox{solve the first equation for y:} \\
-2x-y=-9 \ \ \ |+2x \\
-y=-9+2x \ \ \ |\times (-1) \\
y=9-2x \\ \\
\hbox{substitute 9-2x for y in the second equation:} \\
5x-2(9-2x)=18 \\
5x-18+4x=18 \\
9x-18=18 \ \ \ |\div 9 \\
x-2=2 \ \ \ |+2 \\
x=4 \\ \\
y=9-2x=9-2 \times 4=9-8=1 \\ \\
\boxed{(x,y)=(4,1)}$

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3 years ago

Read 2 more answers

Explain howyou wouldestimateto subtract 189 from 643

kupik [55]

I would estimate 643 - 189 by rounding 643 to the tens place and 189 to the hundreds place.

643 => 640

189 => 200

Now you can subtract 200 from 640.

640 - 200 = 440

6 0

3 years ago