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adoni [48]
3 years ago
6

Why do my teachers give me problems they can't help me with -_-

Mathematics
2 answers:
IRISSAK [1]3 years ago
8 0

Answer:

a. True

b. True

c. True

d. False

Step-by-step explanation:

a. 30.48 centimeters is equal to one foot (12 inches)

b. The unit rate means how many centimeters per inch

c. 6 inches on the number line is equal to 15.24 centimeters

d. If you divide 1 by 2.54 the answer is 0.39 not 0.039

const2013 [10]3 years ago
7 0

Answer:

a. False

b. True

c. True

d. False

Step-by-step explanation:

a. Is false because it says the equivalent ratios of centimeters and feet. When it is comparing centimeters and inches

b. Is true because the unit rate in this double number line is 2.54 centimeters per inch

c. Is true because it shows on the double number line that 6 inches is equal to 15.54 centimeters

d. Is false, although the fact that 0.039 inches are in a centimeter is true, it does not show that rate in the double number line

I hope this helps :)

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Answer:

7x^2+5x

Step-by-step explanation:

Given

Polynomial 1: 9x^2+8x

Polynomial 2: 2x^2+3x

We have to find subtraction of both

So,

9x^2+8x - (2x^2+3x)

First of all the brackets will be eliminated by multilying the minus sign

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The terms with same power of variable will be written together

9x^2-2x^2+8x-3x

=7x^2+5x ..

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3 years ago
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Step-by-step explanation:

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2 years ago
Find x and y, given that KL and line MN are parallel. Show all work
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\dfrac{|MK|}{|KJ|}=\dfrac{|NL|}{|LJ|}\\\\\dfrac{x-2}{5}=\dfrac{12}{8}\ \ \ \ |cross\ multiply\\\\8(x-2)=5\cdot12\\\\8x-16=60\ \ \ |+16\\\\8x=76\ \ \ |:8\\\\\boxed{x=9.5}
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sergey [27]

Answer:

If A(t) represents the amount of salt in the tank at time t, the correct differential equation for A is is dA/dt =  15 - 0.005A

Option C) dA/dt =  15 - 0.005A is the correction Answer

Step-by-step explanation:

Given the data in the question;

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first we determine the rate in and rate out;

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rate out = A pounds/1000gallons × 5gallons/min  = 5Ag/1000pounds/min

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so we substitute

dA/dt = rate in - rate out

dA/dt =  15 - 0.005A

Therefore, If A(t) represents the amount of salt in the tank at time t, the correct differential equation for A is is dA/dt =  15 - 0.005A

Option C) dA/dt =  15 - 0.005A is the correction Answer

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kate buys 10 ticket to show. She also pays a 5$ parking fee. she spent $35 to see the show. What equation is this
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Answer:

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Each ticket was $3

hope this helps :)

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