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3 years ago

Find the expression you can substitute for 5x+y=10

Mathematics

1 answer:

Gennadij [26K]3 years ago

7 0

5x=5*2
Y=0 so 5*2=10 +0 =10

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Find what n equals 8(2n-2) = 4 - 4n (explanation please)

slavikrds [6]

Answer:

$\huge\boxed{n=1}$

Step-by-step explanation:

In order to find the value of n that satisfies this equation, we can perform a series of algebraic steps on it to solve for n.

$8(2n-2) = 4- 4n$
Distribute in the 8 on the left side:
$16n-16=4-4n$
Add 4n to both sides
$20n-16=4$
Add 16 to both sides
$20n = 20$
Divide both sides by 20
$n=1$

Therefore, n=1 is the value of n that satisfies this equation.

Hope this helped!

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3 years ago

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Which inequality represents the situation? The cost of the ticket is no more than $50.

Minchanka [31]

Answer:

1. ≤ 50

2. ≥ 200

Step-by-step explanation:

7 0

3 years ago

Find an approximate equation y=ab^x with the coordinates (0, 4) (3, 95)

bogdanovich [222]

We have $y=ab^{x}$

Plug in $(0, 4)$ :
$4=ab^{0}$ ⇒ $4=a$
So we now have $a$

Plug in $(3, 95)$ :
$95=4b^{3}$
⇒ $b^{3}=\frac{95}{4}$
⇒ $b=\sqrt[3]{\frac{95}{4}}$
which is approximately 2.874

So we get
$y=4(\sqrt[3]{\frac{95}{4}})^{x}$
or, in decimal form,
$y=4*2.874^{x}$

7 0

3 years ago

Calculate the perimeter of an equilateral triangle which has a side of 14cm

g100num [7]

An equilateral triangle has 3 equal sides. Since one side is 14 cm, then all sides are 14 cm. You multiply 4 by 3 and you get your answer.

14*3=42. The perimeter is 42cm.

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3 years ago

Thirty is 12% of what number? 3.6 360 2.5 250

Irina-Kira [14]

Thirty of 12% is 3.6

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3 years ago

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