3 years ago

Based on the graphs, which statement is true? PLEASE HELPP 15 points:/!?!

Mathematics

1 answer:

Serjik [45]3 years ago

5 0

Answer:

I think b

Step-by-step explanation:

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2x+7y=1<br> X+5y=2 answer using elimination method

miskamm [114]

$\left \{ {{2x+7y=1} \atop {x+5y=2\ \ |*(-2)}} \right. \\\\
 \left \{ {{2x+7y=1} \atop {-2x-10y=-4}} \right. \\+----\\elimination\ method\\\\
-3y=-3\ \ \ | divide\ by\ -3\\
y=1\\\\
x=2-5y=2-5=-3\\\\
solution:\\ \left \{ {{y=1} \atop {x=-3}} \right.$

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3 years ago

melinda charges $4 per hour for babysitting. Mrs. Garden does not want to spend more than $25 for babysitting. What is the maxim

Rama09 [41]

You would have to divide 25 by 4. You would get 6.25. That means that Melinda can babysit for 6 hours.

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4 years ago

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K+5/3=-7/4 (those are fractions) also can you show your work?

iris [78.8K]

Answer:

-3 5/12=k

Step-by-step explanation:

K+5/3= -7/4

subtract 5/3 from both sides

K= -7/4-5/3

lcm of 4 and 3 is 12

K= -21/12-20/12

K= -41/12

K= -3 5/12

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3 years ago

The length of a rectangle is 3cm greater than its width. the perimeter of the rectangle is 34cm. find its length.

mamaluj [8]

Answer:

10cm

Step-by-step explanation:

The formula for perimeter is:

$P=2(l+w)$

Let the width of the rectangle be x then the length would be...

3+x

Now, let's plug these values into the equation and solve. (Note we are also given perimeter is 34 cm):

$34=2(x+3+x)\\34=2(2x+3)\\Distribute\ the\ 2\ to\ each\ term\ in\ the\ parentheses\\34=2(2x)+2(3)\\34=4x+6\\Subtract\ 6\ from\ both\ sides\\4x=28\\Divide\ both\ sides\ by\ 4\\x=7$

And since the length is x+3 then it is...

x+3=7+3=10cm

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2 years ago

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electronic store is donating 7.25 percent of every sale to charity. How much would they donate from the sale of an entertainment

Nana76 [90]

Your answer is $424.05

5,849 x 0.0725 = 424.05

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3 years ago