3 years ago

Explain how u would find 34×3/4 mentally.

Mathematics

1 answer:

love history [14]3 years ago

4 0

Turn 34 into an improper fraction ( 34/1 ) and multiply it by 3/4. You get 20 1/2

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Henry has $21.50 to ride the trolley around San Francisco this week. It will cost him $0.50 every time he rides. Identify the de

myrzilka [38]

Answer:

Dependent: Cost of the ride.

Independent : Number of rides.

Step-by-step explanation:

The independent variable is the variable what we change and the dependent variable is the variables which changes because of that changes.

Here the total cost of ride changes for any change in the number of rides.

Hence, the number of rides is the independent variable and the total cost of ride is the dependent variable

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3 years ago

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2x+5d-9×2c+844+233+2×+78d

goldfiish [28.3K]

Answer:

−18c+83d+4x+1077

Step-by-step explanation:

combine all like terms

(2x+2x=4x)

(5d+78d=83d)

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3 years ago

Find the value of a and b if root3-1/root3+1+ root3+1/root3-1=a+root3 b

Digiron [165]

Answer:

a=4 and b = 0

Step-by-step explanation:

Given : $\dfrac{\sqrt 3 -1}{\sqrt 3+1}+\dfrac{\sqrt 3+1}{\sqrt 3-1}=a+\sqrt 3 b$

To find, The value of a and b

Solution,

Solving LHS of the given equation,

$\dfrac{(\sqrt 3-1)^2+(\sqrt3+1)^2}{(\sqrt 3+1)(\sqrt 3-1)}=a+\sqrt 3 b$

Since,

$(a-b)^2=a^2+b^2-2ab\\\\(a+b)^2=a^2+b^2+2ab\\\\(a-b)(a+b)=a^2+b^2$

So,

$\dfrac{3+1-2\sqrt 3+3+1+2\sqrt 3}{3-1}=a+\sqrt 3 b\\\\4=a+\sqrt 3 b$

$4+0=a+\sqrt 3 b$

On comparing we get :

a = 4 and b = 0

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3 years ago

Helpp plss this needs to be done before 11:59 I’ll do anything for you just helpp

Alexus [3.1K]

Answer:

20=91.35*2

182$

21=17+18+15 vs 17+15+18

equal distributive property

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D. Tanisha is 6, and Bess is 12

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3 years ago

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