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Dvinal [7]
2 years ago
8

Svetlanas hair is 4 centimeters long her hair grows 1.5 cm per month. Svetlana wants her hair to grow so that it's at least 7 cm

long write an inequality to determine the number of months,m, it will take svetlana hair to grow so it's at least 7 cm long
Mathematics
1 answer:
Ksenya-84 [330]2 years ago
6 0
1.5x + 4 (greater than or equal to) 7

It is greater than or equal to because she wants at least seven cm, which means that the length CAN be 7 cm, and it’s greater than because at least means a minimum of, so 7 cm or longer.

You add four because that’s how much hair she has already and you have 1.5x because that how much she growth per month. Plug in how many months for x and we’ll get a length in that amount of time
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Which triangles are similar by the angle-angle criterion for similarity of triangles ?
Alex Ar [27]

Answer:

Option D is correct.

\triangle ADE \sim \triangle ABC

Step-by-step explanation:

In triangle ADE and triangle ABC

From the figure:

\angle ADE = \angle ABE  [Angle]             [Given]

\angle DAE = \angle BAC  [Angle]

AA(Angle-Angle) similarity criterion states that in two triangles if two pairs of corresponding angles are equal, then these triangle Similar.

By AA similarity:

⇒\triangle ADE \sim \triangle ABC

5 0
3 years ago
The table gives the average age of airplanes per airline at Camila’s local airport. By what percent is the number of airlines wi
VladimirAG [237]

The percentage that the number of airlines with an average airplane age of 14 is less than the number of airlines with an average airplane age of 11 is:

B. 20%.

<h3>What is a percentage?</h3>

The percentage of an amount a over a total amount b is given by a multiplied by 100% and divided by b, that is:

P = \frac{a}{b} \times 100\%

The percentage of airlines with an average age of 14 years is:

P = \frac{2}{15} \times 100\% = 13.33\%

The percentage of airlines with an average age of 11 years is:

P = \frac{5}{15} \times 100\% = 33.33\%

The difference is:

33.33% - 13.33% = 20%.

Hence option B is correct.

More can be learned about percentages at brainly.com/question/10491646

#SPJ1

6 0
2 years ago
Lamar shares 6 pencils equally with himself and 5 friends. Write an equation and solve to show the number of pencils each friend
kkurt [141]
6 pencils÷ lamer+5 other friends=1.1 pencil for each person
3 0
3 years ago
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kvasek [131]
The answer is going to be 1/4 of a cup
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GarryVolchara [31]
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3 years ago
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