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2 years ago

4. You have 36 pairs of running shoes. Let x be the

Mathematics

1 answer:

Liono4ka [1.6K]2 years ago

4 0

Answer:

Nikes: 24 pairs
Adidas: 12 pairs

Step-by-step explanation:

The system of equations can be written ...

x + y = 36

x = 2y

The system can be solve by substituting for x:

(2y) +y = 36

y = 12 . . . . . . divide by 3

x = 2(12) = 24

There are 24 pairs of Nikes and 12 pairs of Adidas.

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Evaluate log12 - log4 + log5 and can you explain it to me?

mario62 [17]

Remember some simple log rules

$log(a)+log(b)=log(ab)$
and
$log(a)-log(b)=log(\frac{a}{b})$

work from left to right

$log(12)-log(4)+log(5)=$
$log(\frac{12}{4})+log(5)=$
$log(3)+log(5)=$
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7 0

3 years ago

38 - 8 ÷ 3 - 3 -7 + 4 + 16

Umnica [9.8K]

Answer:

45.33333333333

Step-by-step explanation:

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3 years ago

When solving equation which is the best first step to begin to simplify the equation -2(x+3)=-10

LiRa [457]

Answer:

Step-by-step explanation:

Alright, lets get started.

The given equation is :

$-2(x+3)=-10$

If we divide the equation with -2 in both sides

$\frac{-2(x+3)}{-2}=\frac{-10}{-2}$

$(x+3)=5$

$x+3=5$

Subtract 3 in both sides

$x+3-3=5-3$

$x=2$

So, the first step of simplifying equation is divide equation with -2. : Answer

Hope it will help :)

3 0

3 years ago

Read 2 more answers

Suppose that water is pouring into a swimming pool in the shape of a right circular cylinder at a constant rate of 3 cubic feet

gtnhenbr [62]

Answer:

Therefore the height of the water in the pool changes at the rate of $\frac{1}{3\pi}$ feet per minute.

Step-by-step explanation:

Given that the shape of swimming pool is right circular cylinder.

The rate of water pouring in the pool = 3 cubic feet per minute.

It means the rate of change of volume is 3 cubic feet per minute.

$\frac{dv}{dt}=3$ cubic feet per minute.

When the volume of the swimming pool changed it means the height of the water level of the pool change and the radius of the swimming pool remains constant.

Let the height of the pool be h.

The volume of the pool is = $\pi 3^2 h$ cubic feet