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3 years ago

Anyone know the answers to this?

Mathematics

1 answer:

solniwko [45]3 years ago

4 0

Answer:

Step-by-step explanation:

hope this helps

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6th grade math help me pleaseeeee

Ivenika [448]

Answer:

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Step-by-step explanation:

24 -37*2

24-74

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2 years ago

Seven times a number is the same as 12 more than 3 times the number. find the number

Arada [10]

7x=12+3x
-3x. -3x
4x=12
x=3

6 0

3 years ago

Read 2 more answers

Write an addition fact that helps you solve 16-9

pochemuha

4+1 = 5
5 is the answer but you could also just subtract it a normal way

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3 years ago

Read 2 more answers

a quantity of ethanol is cooled from 47.9° C to 12.3°C and releases 3.12 KJ of heat. what is the mass of the ethanol sample?

victus00 [196]

Answer:

35.9 grams

Step-by-step explanation:

We use the formula:

$q=m*C_p*\Delta T$

Where

q is heat released

m is mass

C_p is the constant 2.44

ΔT is change in temperature

We put the info in the formula and solve for m (mass):

$q=m*C_p*\Delta T\\-3.12 = m*2.44(12.3-47.9)\\-3.12*10^3=m*(-86.864)\\m=35.9$

The mass of ethanol is 35.9 grams

8 0

3 years ago

Solve for n or d27/36=n/4

Vlada [557]

27/36 = n/4
27*4 = 36n
108 = 36n
108/36 = 36n/36
n = 3

5 0

3 years ago