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erica [24]
2 years ago
7

Match the property that was used. x+13=13+x

Mathematics
2 answers:
Alex777 [14]2 years ago
8 0

The commutative property states that

a + b = b + a.

So, x + 13 = 13 + a.

Jobisdone [24]2 years ago
3 0

the commutative property was used

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Anna35 [415]

Answer:

21 is 84% to 25, so there would be 25 total questions on the test

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Solve 35 divided by 7168
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0.0048828125‬

Step-by-step explanation:

35/7168= 0.0048828125‬

7 0
3 years ago
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a 400 g of a liquid of density 1.6g/cm3 is made from mixing liquids of density 1.2g/cm3 and 1.8g/cm3 find the mass of the liquid
gogolik [260]

Answer:

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Step-by-step explanation:

Let the:

Mass of 1.2g/cm³ of liquid = x

Mass of 1.8g/cm³ of liquid = y

From our Question above, our system of equations is given as:

x + y = 400........ Equation 1

x = 400 - y

1.2 × x + 1.8 × y = 1.6 × 400

1.2x + 1.8y = 640..... Equation 2

We substitute, 400 - y for x in Equation 2

1.2(400 - y) + 1.8y = 640

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- 1.2y + 1.8y = 640 - 480

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y = 266.67 g

Solving for x

x = 400 - y

x = 400 - 266.67g

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Write as a fraction 56:120
Fudgin [204]
56:120 = 56/120 = 7/15
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2 years ago
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