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nikklg [1K]
3 years ago
11

Carla has a store that sell candles for 4 for 10 dollars. A customer called and Carla needs to know how much 20 candles would co

st?
Mathematics
1 answer:
umka21 [38]3 years ago
3 0

Answer:

20 candles is 50 dollars

Step-by-step explanation:

set up a proportion. you know what 4 candles is. that's ten dollars.

4/10 = 20/x

x will be your placeholder for the cost, because we don't know how much 20 candles is. now, make sure everything is lined up, obviously it'll be different on here. I'll post a picture of the work at the bottom.

take 4 and cross multiply it to X. that's 4x. then you'll take 10 and multiply it by 20. mental math, that gives you 200. so, now you've got a one step equation of 4x=200.

take 4 divide it into 200, and you get 50. hope this helps!!

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If someone can please answer the question in the picture thatd be great
Ann [662]

Answer:

≈ 20.8 ft

Step-by-step explanation:

A right triangle is formed between the wall, the ground and the ladder.

The ladder is the hypotenuse , the wall and ground are the legs.

let h be the height of the wall, then using Pythagoras' identity

h² + 33² = 39²

h² + 1089 = 1521 ( subtract 1089 from both sides )

h² = 432 ( take the square root of both sides )

h = \sqrt{432} ≈ 20.8 ft ( to the nearest tenth )

5 0
3 years ago
Where is 2/4 on the number line with a number line of on 3 ticks?
KIM [24]
2 to the left is 3 your very welcome hope this helps
4 0
3 years ago
Find the value of c. 16 = 4 - 3c
dybincka [34]

Answer:

c = -4

Step-by-step explanation:

16 = 4 - 3c

subtract 4 from each side

16-4 = 4-4 - 3c

12 = -3c

Divide each side by -3

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6 0
3 years ago
Read 2 more answers
Which equation represents the line shown
murzikaleks [220]

Answer: Third option:

Step-by-step explanation:

The equation in Slope Intercept form of a line that does not pass through the point (0,0), which is known as "Origin, is the following:

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The equation  in Slope Intercept form  of a line that passes through the Origin, is:

y=mx

Where "m" is the slope of the line.

In this case you can observe in the picture attached that the line passes through the point (0,0).

You can also notice that "y" would be the Dependent variable and "x" the Independent variable.

Therefore, the equation of this must have this form:

 y=mx

The only equation that matches with that form, is the one given in the Third option. This is:

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7 0
3 years ago
This is another problem for my math class<br> Solve the inequality below<br> X + 14 &gt; 27
frez [133]

Answer:

x = 14+

Step-by-step explanation:

If 14 + 14 = 28

Then

28 > 27 is true.

8 0
2 years ago
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