3 years ago

Adriana went to school for 6 2/5 hours on Tuesday. What is 6 2/5 expressed as a decimal?

Mathematics

1 answer:

lozanna [386]3 years ago

3 0

Answer:

6.4 .

Step-by-step explanation:

this was on my test

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X^2=81/100 solve the equation for x

grigory [225]

DAD?????????????????????

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3 years ago

Tomas's grandfather is 100 years old.Tomas's grandfather is 10 times as old as Tomas.How old is Tomas? Can someonegive me the a

Hitman42 [59]

Tomas should be 10

If his grandfather is 100, then divide 100 by 10 and you will get Tomas's age.

Please correct me if I'm wrong.

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Which is an equivalent form of the first equation that when added to second equation eliminates the x terms? 4/5 x-3/5y=18

Fittoniya [83]

Answer:

$-8x + 6y = -180$

Step-by-step explanation:

Given

$\frac{4}{5} x-\frac{3}{5}y=18$

$8x + 12y = 11$

Required

Equivalent form of the first equation that eliminates x when added to the second

To do this, we simply make the coefficients of x to be opposite in both equations.

In the second equation, the coefficient of x is 8.

So, we need to make the coefficient of x -8, in the first equation.

$\frac{4}{5} x-\frac{3}{5}y=18$

Multiply by -10

$-10 * [\frac{4}{5} x-\frac{3}{5}y=18]$

$\frac{-40}{5} x+\frac{30}{5}y=-180$

$-8x + 6y = -180$

<em>When this is added to the first equation, the x terms becomes eliminated</em>

6 0

3 years ago

Of F(x) and

Musya8 [376]

Do u mean what is f(8)?

(X) = 2x + 5
Inverse = (x-5)/2

F(x) = (x-5)/2
F(8) = (8-5)/2
= 3/2 = 1.5

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4 years ago

10% of £26 is equal to x% of £52. Calculate the value of x.<br><br>

irina1246 [14]

Answer:

Step-by-step explanation:

26 × 10 ÷ 100 = 52 · x ÷ 100

260 = 52 · x

x = 5

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4 years ago