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coldgirl [10]
2 years ago
5

The ratio of students who wear glasses to the total class is 2: 5. If there

Mathematics
1 answer:
Fynjy0 [20]2 years ago
4 0

Answer:

35

Step-by-step explanation:

If 14 kids wear glasses and all others do not and the ratio is 2:5

divide 14 by 2 the answer is 7 multiply it by 5 and you have your answer

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Four times a number added to 9 times the number is 65. What is the number?
MA_775_DIABLO [31]

Answer: 5

Step-by-step explanation:

Let the number = x.

4x + 9x = 65

13x = 65

x = 5

6 0
2 years ago
Read 2 more answers
What is the value of f=(x)=16x when x= 1/2
zalisa [80]
For the second question, your first option is correct, you would rewrite 8 in power-base form 8=2^3 as the first step to solving the equation, power base form is exponential form.


4 0
3 years ago
Sinah bought some packs of gum. There were 8 sticks of gum in each pack. She gave 12 sticks of gum to manuela. This left sinah w
zhuklara [117]

Answer:

8g = 12 + 28

g = 5 packs

Step-by-step explanation:

Share of the sticks of gum

Manuela = 12 sticks

Sinah = 28 sticks

There are 8 sticks in each pack

g = number of packs of gum that sinah bought?

g × 8 sticks = 12 sticks + 28 sticks

8g = 40

Divide both sides by 8

g = 40 / 8

g = 5 packs

3 0
3 years ago
<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B2%7D%7B3%7D%20n%20%284p%20%2B%20%5Csqrt%7B36%7D%20-%202%20%7Bn%7D%5E%7B2%7D%20" i
Neporo4naja [7]

Answer:

-16.

Step-by-step explanation:

2/3 * (-3) * (4*5 + 6 - 2(-3)^2)

= -2(20 + 6 - 18)

= -2 * 8

= -16.

4 0
2 years ago
If a 12-sided regular polygon rotates about its center, at which angle of rotation will the image of the polygon coincide with t
Snowcat [4.5K]
Central angle of a regular polygon:
Ф = 360° : n. 
If n=12:  Ф = 360° : 12 = 30°
At the angle of rotation Ф = 30°  the image of the polygon will coincide with the preimage.
7 0
3 years ago
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