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STatiana [176]
2 years ago
9

Someone please help me out i don´t understand this question ill give you 21 points

Mathematics
2 answers:
suter [353]2 years ago
8 0

Answer:

0.67

Step-by-step explanation:

Formula: k = y/x

k = 2/3

k = 0.66666666666

k = 4/6

k= 0.66666666666

k = 6/9

k = 0.66666666666

k = 8/12

Round 0.67

Hence, answer = 0.67

[RevyBreeze]

Darya [45]2 years ago
7 0

Answer:

2/3

Step-by-step explanation:

Direct proportions are given by:
y=kx where k is the constant
2=k×3
2/3=k

4=k×6
4/6=k
2/3 = k

6=k×9
6/9 =k
2/3 = k

8 = k×12
8/12 = k
2/3 = k

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a 12-ft ladder leans against a building so that the angle between the ground and the ladder is 74°. how high does the ladder rea
WINSTONCH [101]

Answer:

12 feet

Step-by-step explanation:

Sometimes, a simple drawing is a great way to start! In the attached drawing, the red line represents the ladder, the brown represents the ground, and the black represents the building!

We want to find the side of the triangle from where the ladder meets the building to where the building meets the ground. This can be found using trigonometric identities, namely sine:

sin\theta=\frac{opposite}{hypotenuse}

Plug in known values:

sin(74^o)=\frac{x}{12}

Rearrange to isolate the variable:

x=12sin(74^o)

Simplify!

x=11.535140... ft

Round to the nearest foot:

x=12ft

8 0
2 years ago
Marcus is saving money to build a new robot. He already has $75 saved up from the last competition he won. He deposits $8 per we
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Answer:

soo hardd

Step-by-step explanation:

6 0
3 years ago
Solve the equation for x.<br>​
devlian [24]

Answer:

x=1

Step-by-step explanation:

multiply both sides by 28 (it is the Least Common Multiple) which would bring your equation to be

7x-2= 4x+1

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7 0
3 years ago
Read 2 more answers
1 is 25% of what number?
Travka [436]

Answer:

4

Step-by-step explanation:

25% is the same as 1/4.

1 is 1/4 of what number?

Answer: 4

You can also answer it with an equation.

Let x = the number you are looking for.

1 is 25% of x can be written as the following equation.

25% of x = 1

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Answer: 4

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