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Novosadov [1.4K]
3 years ago
8

Select all expressions that are equivalent to 5x + (x+6) +3x.

Mathematics
1 answer:
zhuklara [117]3 years ago
6 0

Answer:

9x + 6 and 6x + 6 + 3x

Step-by-step explanation:

You might be interested in
Write a expression that is equivalent of 4+3(5+x)
Serggg [28]

Answer:19+3x

Step-by-step explanation:

4+3(5+x)

Open bracket

4+15+3x

19+3x

3 0
4 years ago
An ice cream shop sells cones at the volume of 94.2 cubic meters they want to double the volume of the cones without changing th
marin [14]
The volume of a cone is V=\pi r^2\frac{h}3 where r = radius and h = height. If the cone has a volume of 94.2 cm³ (I assume you didn't mean m³ because that would be ridiculously huge) and a height of 10 cm, we can plug these values into the formula to find the radius. Don't do any rounding.

94.2 = \pi r^2\frac{10}3 \\ 282.6 = \pi r^2 *10 \\ 28.26 = \pi r^2 \\ 8.99543738355 = r^2 \\ 2.99923946752=r

Now we know that's going to be the radius of our <em>new </em>cone as well since we're keeping the diameter the same. The volume is going to be double 94.2 which is 188.4. Let's solve for the height.

188.4 = \pi (2.99923946752)^2\frac{h}3 \\ 188.4 = \pi(8.99543738355)\frac{h}3 \\ 188.4 = 28.26\frac{h}3 \\ 565.2 = 28.26h \\\\ \boxed{h = 20, r\approx 3}
5 0
3 years ago
A 20-pound bag of dog food costs $16. What is the unit price per pound? ​
ch4aika [34]

Answer:

0.8

Step-by-step explanation:

To calculate the cost of any item per pound, divide the cost of the item by its weight in pounds: cost ÷ pounds = cost per pound.

Hope This Helped!!

6 0
3 years ago
Roman said that the ratio comparing how many miles he walks to how many miles patrick walks each week is 3:2. patrick said that
Viktor [21]

Answer:

Since Roman walks 1 more than Patrick then you have to subtract 1 from Patricks number of miles.

4 0
3 years ago
I forgot what to do
kvv77 [185]
Pretty sure it would be 21x^2+16x+17y
8 0
3 years ago
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