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NNADVOKAT [17]
3 years ago
10

Is (-1,4) a solution of the inequality y<2x+5?

Mathematics
1 answer:
Sveta_85 [38]3 years ago
6 0
Let's plug x= -1, y= 4 in the inequation, we have:
4< 2*(-1)+5
⇒ 4< -2+5
⇒ 4< 3 (false)

Therefore, (-1,4) is not a solution of the inequation y<2x+5~
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An ice cream cone has a height of 6 inches and a radius of 2 inches as shown. The ice cream completely fills the cone, as well a
iragen [17]
The cone itself is 25.13, with the half sphere added it’s 41.8 :)
6 0
3 years ago
Mrs. Fields has a bag of marbles. One-fourth of the marbles are red. How many marbles can there be in the bag?
makvit [3.9K]

Answer:

she can have 4 marbles in the bag.

Step-by-step explanation:

Because if one out of four is read then there is four marbles.

4 0
3 years ago
Two different types of tea are sold in your store. If you know 100 cups of tea were sold and one type sold 5 times as much as th
LiRa [457]

The answer can not be found from the given information

Step-by-step explanation:

Two different types of tea are sold in your store

  • You know 100 cups of tea were sold
  • One type sold 5 times as much as the other type

We need to find how much of each type of tea were sold

Assume that the two types are x and y

∵ x represents one type of tea

∵ y represents the other type of tea

∵ 100 cups of tea where sold

- Add x and y, then equate the sum by 100

∴ x + y = 100 ⇒ (1)

∵ x type is 5 times as much as y type

∴ x = 5y ⇒ (2)

Now we have a system of equations to solve it

Substitute x in equation (1) by equation (2)

∴ 5y + y = 100

∴ 6y = 100

- Divide both sides by 6

∴ y = 16.67

<em>But you know number cups must be whole numbers</em>

The number cups can be 102 <em>OR</em> one type is 4 times as much as the other type

If the number of cups is 102, then

85 cups of one type and 17 cups of the other type were sold

If one type is 4 times as much as the other type, then

80 cups of one type and 20 cups of the other type were sold

The answer can not be found from the given information

Learn more:

You can learn more about the system of equations in brainly.com/question/2115716

#LearnwithBrainly

8 0
3 years ago
Plz help due tomorrow
Lostsunrise [7]

Answer:

6(10)+5x=180

Step-by-step explanation:

The grocery store received a crate of 180 pound...

So, the whole amount is 180..

The crate contains six 10 pound bag of potato plus an unknown number of 5pound bag of potato....

So if we think, that the unknown number is x the equation would be

6(10)+5x=180

Hope ya find this helpful..

6 0
3 years ago
A grocer has 30 pounds of tomatoes. If he wants to pack them into 2 1/2 - pounds packages, how many packages of tomatoes will he
OLga [1]

Answer:

12

Step-by-step explanation:

Divide 30 by 2.5, which is 12. Therefore, it would be 12 packages.

3 0
1 year ago
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