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3 years ago

Why does 225.60 × 0.25 equal 56

2 answers:

3 0

It equals that because when you multiply a whole number by a decimal then the answer will always be smaller then the whole number.

Nataliya [291]3 years ago

3 0

Well first of all, 225.6 * 0.25 does NOT equal 56. It equal 56.4
Second of all, even if it did equal 56... our number system has been defined so that 225.6 * 0.25 just works out to 56.4... there's not really a reason it does equal 56.4

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Solve the system of equations by multiplying and adding. Enter the solution as an ordered pair.

GREYUIT [131]

Answer:

(x, y) = (- 3, 4)

Step-by-step explanation:

Given the 2 equations

5x + 2y = - 7 → (1)

4x - y = - 16 → (2)

multiply all terms in (2) by 2

8x - 2y = - 32 → (3)

Add (1) and (3) term by term

(5x + 8x) + (2y - 2y) = (- 7 - 32)

13x = - 39 ( divide both sides by 13 )

x = - 3

Substitute x = - 3 into either (1) or (2) and solve for y

substituting in (1) gives

(5 × - 3) + 2y = - 7

- 15 + 2y = - 7 ( add 15 to both sides )

2y = 8 ( divide both sides by 2 )

y = 4

solution is (- 3, 4 )

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3 years ago

In the early spring, the trout at Big Blue Lake swim at a depth of 30 feet below sea level. When the lake warms up in the summer

Pavel [41]

-50 feet because you have to add 2 to 30 and since it is below sea level, it is a negative

3 0

3 years ago

Can someone help me i really needed

AlladinOne [14]

The answer would be the third option or C

5 0

3 years ago

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Inverse Variation

AURORKA [14]

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$(4)\\xy=-12\\\\e.g.:\ \ \ x=3\ \ and\ \ y=-4\ \ \ \ or\ \ \ \ x=-3\ \ and\ \ y=4\ \ \Rightarrow\ \ Ans.\ A.\\\\(5)\\V\cdot T=a\ \ \ and\ \ \ 18\cdot 3=a\\\\ \ \ \Rightarrow\ \ \ a=54\ \ \ \Rightarrow\ \ \ V\cdot T=54\ \ \ \Rightarrow\ \ \ V= \frac{54}{T} \ \ \ \Rightarrow\ \ \ Ans.\ C.$

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3 years ago

A bag of balls is given to you which has 3 red balls, 4 green balls, 2 orange balls and 6 white balls. What is probability of pi

soldi70 [24.7K]

Probability of picking a green ball = number of green balls / total number of balls

Pr(green) = 4/(3+4+2+6) = 4/15

4 0

3 years ago

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