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lara31 [8.8K]
4 years ago
6

In a group of 20 students 25% wear glasses how many do not wear glasses?

Mathematics
2 answers:
zlopas [31]4 years ago
7 0

Answer:

15

Step-by-step explanation:

25 percent of 20 is 5, and 20-5 equals 15.

cluponka [151]4 years ago
4 0

In a group of 20 students, 15 do not wear glasses.

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5+2(w-6) how do i rewrite as addition and solve?
Firdavs [7]

Answer:

2w - 7

Step-by-step explanation:

1) Expand by distributing terms.

5 + 2w - 12

2) Collect like terms.

2w + (5 - 12)

3) Simplify.

2w - 7

<em><u>Therefor</u></em><em><u>,</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>answer</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>2w</u></em><em><u> </u></em><em><u>-</u></em><em><u> </u></em><em><u>7</u></em><em><u>.</u></em>

7 0
3 years ago
When 50​% of a number is added to the​ number, the result is 210. what is the number?
stellarik [79]
I hope this helps you

4 0
3 years ago
Read 2 more answers
Find the ratio to its lowest 9cm to 36cm​
abruzzese [7]

Answer:

1:4 or 1/4

Step-by-step explanation:

9 cm : 36 cm

They both can be divided by 9 so,

9 ÷ 9 : 36 ÷ 9

= 1 : 4

Hope this helps

3 0
3 years ago
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What is the answer to this?
nekit [7.7K]

Answer:

Up

Step-by-step explanation:

Y= 1x^2 + 3x + 9

Y= Ax^2 + Bx + C

To determine which way a parabola opens just look at the coefficient (the number) of the x^2 - Always use the coefficient that is beside the x^2

So,  if the coefficient A is positive the parabola is opening upward

      if the coefficient A is negative the parabola is opening downward

7 0
2 years ago
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What is the next square number in the list? 49, 64, 81,
Anarel [89]

7x7 = 49

8x8=64

9x9=81

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5 0
3 years ago
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