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expeople1 [14]
3 years ago
13

There are 90 girls in the third year,25 of whom study biology. What percentage of third year girls study biology?​

Mathematics
1 answer:
Ilya [14]3 years ago
3 0

Answer:

27.77777...

Step-by-step explanation:

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The sum of two numbers is10 . The difference is2 .
erma4kov [3.2K]

Answer:

  • 6 and 4

Step-by-step explanation:

Let the numbers are x and y.

<u>Then the equations are:</u>

  • x + y = 10 (blue line)
  • x - y = 2 (red line)

<u>The graph are attached with the intersection marked: </u>

  • (6, 4)

3 0
3 years ago
Find the size of angle q if it is five times it's supplement​
tino4ka555 [31]

Answer:

<em>q =</em> 150

Step-by-step explanation:

Supplementary angles are angles that form a straight line and have a sum of 180 degrees, e.g. 120 and 60. If its supplement is thirty, and angle <em>q </em>is five times its supplement, it's 150. We know this is correct because 150 + 30 = 180, which is what we need for a supplementary angle.

7 0
3 years ago
Determine the value of x. Round answer to the nearest hundredth.
EleoNora [17]

Answer:

i believe it is 24

Step-by-step explanation:

PLZ GIVE BRAINLY

3 0
3 years ago
Read 2 more answers
F (x) = – 3x² + 3x + 7<br>Find f(8)​
aliya0001 [1]

Answer:

-161

Step-by-step explanation:

f(x)=-3x^2+3x+7\\f(8)=-3(8)^2+3(8)+7\\f(8)=-3(64)+24+7\\f(8)=-192+31\\=-161

7 0
4 years ago
Gina went for a fun dinner at Sally's Savory Seafood with some friends. The bill
snow_tiger [21]

Answer: Tip- $9.16

Total bill will be $57.82

Step-by-step explanation:

Bill before tax is $45.80

6.25% sales tax implies 6.25/100 x 45.80= $2.86

20% tip = 20/100 x $45.80 = $9.16

Total bill is therefore $45.80+ $2.86+ $9.16

5 0
4 years ago
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