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3 years ago

Please help I'm struggling really bad :(

Mathematics

2 answers:

faltersainse [42]3 years ago

3 0

Answer of Part A is 243 Lunches

Answer of Part B is 850.50$

klasskru [66]3 years ago

3 0

I need points yes please

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Helpppp please!!!!!!

uysha [10]

Answer:

x-8

Step-by-step explanation:

since we dont know how much gas is in the tank, lets make that X.

and since we subtract 8 gallons from how much is in the tank, we make that X-8

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3 years ago

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If the tempture is 39.2 degrees F what would the tempture be in celsius

rodikova [14]

Answer:

4 degrees celsius

Step-by-step explanation:

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2 years ago

Bill says that he can add 23 and 40 without regrouping. Is bill correct? How do you know?

creativ13 [48]

He can because you can add it mentally. You can just have 23 in your head and count by adding 10 "4" times.

Hope this helped☺☺

7 0

3 years ago

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Elimination_4x_2y=14 _10x+7y=_24

Gnesinka [82]

Answer:

The answer is $x=-\frac{50}{8}$ and $y=\frac{11}{2}.$

Step-by-step explanation:

Given:

-4x-2y=14

-10x+7y=-24

Now, to solve it by elimination:

$-4x-2y=14$ ......(1)

$-10x+7y=-24$ ......(2)

So, we multiply the equation (1) by 7 we get:

$-28x-14y=98$

And, we multiply the equation (2) by 2 we get:

$-20x+14y=-48$

Now, adding both the new equations:

$-28x-14y+(-20x+14y)=98+(-48)$

$-28x-14y-20x+14y=98-48$

$-28x-20x-14y+14y=50$

$-8x=50$

Dividing both the sides by -8 we get:

$x=-\frac{50}{8}$

Now, putting the value of $x$ in equation (1):

$-4x-2y=14$

$-4(-\frac{50}{8})-2y=14$

$\frac{200}{8} -2y=14$

$25-2y=14$

Subtracting both sides by 25 we get:

$-2y=-11$

Dividing both sides by -2 we get:

$y=\frac{11}{2}$

Therefore, the answer is $x=-\frac{50}{8}$ and $y=\frac{11}{2}.$

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3 years ago

Factor the polynomial: –3x^4 – 9x^3 + 15x^2

spayn [35]

Answer:-3x^2(9x^5-5)

Step-by-step explanation:

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3 years ago

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