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Alika [10]
2 years ago
10

Help me someone please

Mathematics
1 answer:
Debora [2.8K]2 years ago
8 0

Answer:4root3

Step-by-step explanation:

if you dont know what a equilateral triangle its just. a triangle basically  

(im in 7th btw)

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What is the solution to the equation 3x+9-7x=2(x+6)
sladkih [1.3K]

The answer is x equals 1/2.

6 0
3 years ago
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The base of the triangle decreases by 30% and the height increases by 20%.
sergeinik [125]

Answer:

Area decreases by 16%

Step-by-step explanation:

Use formula for the area of the triangle

A=\dfrac{1}{2}\cdot \text{Base}\cdot \text{Height}

<u>Initial triangle:</u>

The base is 18 cm

The height is 5 cm

The area is

A_{initial}=\dfrac{1}{2}\cdot 18\cdot 5=45\ cm^2

<u>New triangle:</u>

The base is (1-0.3)\cdot 18=0.7\cdot 18=12.6\ cm

The height is (1+0.2)\cdot 5=1.2\cdot 5=6\ cm

The area is

A_{new}=\dfrac{1}{2}\cdot 12.6\cdot 6=37.8\ cm^2

Area decreases by

100\%-\dfrac{37.8}{45}\cdot 100\%=100\%-84\%=16\%

5 0
3 years ago
A container is 80​% filled with liquid. The container holds 1,180 gallons of liquid. How many gallons of liquid are needed to fi
MariettaO [177]

Answer:

b

this is the correct answer

4 0
3 years ago
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Please help they are separate questions please help me with this!
monitta

Answer: Mary makes $1160, Steven makes $142.50

Step-by-step explanation:

Facts

MARY

8% commision on everything she sells

She sells a car for $14,500

The first question about Mary asks how much commision she makes. To find that, lets find 8% of 14,500

8% of 14,500= 0.08x14,500= 1160

Therefore, Mary makes $1,160 in commision.

STEVEN

Facts

He makes 15% in commision for the supplies he sells

He sells $950 in supplies

Money made =?

15% of 950=0.15x950=$142.50

6 0
2 years ago
If i started at 11:40 A.M. And my elapsed time was 5 hours and 20 minutes. What is my end time?
kiruha [24]

Answer:

5:00 pm

Step-by-step explanation:

11:00 + 5 is 4.00 so you'd be a 4:40 + 20 minutes, that ranks up another hour so its at 5:00 pm

3 0
3 years ago
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