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3 years ago

If the ratio of dogs to cats at an animal shelter is 2:5, then the number of cats is _____ times the number of dogs.

Mathematics

2 answers:

lys-0071 [83]3 years ago

6 0

What number you have to multiply 2 to get 5.
Or 2*x=5 solve for x

cestrela7 [59]3 years ago

3 0

The number of cats is 5/2 the number of dogs.

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What is the mass (in grams) of 8.11×1026 CO2 molecules?

Kobotan [32]

Answer:

It is 59,275.74 grams

Step-by-step explanation:

• Molecular mass of carbon dioxide

$= (12 \times 1) + (16 \times 2) \\ = 12 + 32 \\ = 44 \: g$

[ molar masses: C = 12 g, O = 16 g ]

• From avogadro's number, it says 1 mole contains 6.02 × 10^23 molecules or atoms.

But 1 mole is equivalent to its molar mass in terms of weight, therefore;

${ \sf{6.02 \times {10}^{23} \: molecules = 44 \: g }}\\ { \sf{8.11 \times {10}^{26} \: molecules =( \frac{8.11 \times {10}^{26} }{6.02 \times {10}^{23} } \times 44) \: g}} \\ \\ = { \boxed{ \boxed{ \bf{59275.7 \: \: g}}}}$

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3 years ago

need help with this someone please help

qwelly [4]

Answer: B

Step-by-step explanation:

7 0

3 years ago

2 y + 4 x = 8, Solve for y

mash [69]

Answer:

y=−2x+4

Step-by-step:

2y+4x=8

Step 1: Add -4x to both sides.

4x+2y+−4x=8+−4x

2y=−4x+8

Step 2: Divide both sides by 2.

2y /2 = −4x+8 /2

y=−2x+4

4 0

4 years ago

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From a sample of 50 incinerators in a major city. of the 50 samples, only 18 met an environmental standard for the concentration

yuradex [85]

Yes. since half of 50 is 25 it is correct to say that 18 is less than half

6 0

3 years ago

Someone please help!!!!! WILL MARK BRAINLIEST

adoni [48]

Answer:

y = (1/2)x + 1

Step-by-step explanation:

linear line equation is y = mx + b

Where m is the slope and b is the y-intercept when x is 0.

For m, m is change in y(delta y) over change in x(delta x).

We are given two points: (0,1) and (4,3).

m = (y2 - y1)/(x2 - x1) = (3-1)/(4-0) = 2/4 = 1/2

y = (1/2)x + b

Now plug in (0,1) into above equation to find b value.

1 = (1/2)0 + b => b = 1

Final equation is y = (1/2)x + 1

3 0

3 years ago