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Lisa [10]
3 years ago
13

Write an equation to find the number of Mr.night's homeroom if the total number of students is 90

Mathematics
1 answer:
tia_tia [17]3 years ago
5 0
This question is obviosly missing an ending but, I bet you will have to divide.
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Jayla ate 75% of the jelly beans in the bag. If she ate 24 jelly beans how many were in the bag?
maksim [4K]

Answer:

32 jelly beans were in the bag

Step-by-step explanation:

We know 75% is 3/4 and that she ate 24, so divide 24 by 3 then multiply it by 4:

24/3= 8

8 x 4 = 32

7 0
3 years ago
Find the x <br> Please help me and show how you got it :)
Kaylis [27]

9514 1404 393

Answer:

  x = 4

Step-by-step explanation:

The parallel lines divide the sides proportionally, so ratios of corresponding sides are the same.

  (x +5)/15 = (5x +1)/35

Multiplying by 105, we have ...

  7(x +5) = 3(5x +1)

  7x +35 = 15x +3 . . . . . eliminate parentheses

  32 = 8x . . . . . . . . . subtract 7x+3 from both sides

  4 = x . . . . . . . . divide by 8

4 0
3 years ago
Write the equation of the line that has a slope of -4 and goes through (3,-3)
Sindrei [870]
The functional equation of the line is f (x)=a*x+b
you have already a: -4 -->f (x)=-4 x+b
Now you can use the point (3;-3)
3 is the x-coordinate and -3 the f (x)-coordinate
--> -3 = -4*(3) + b Now you can solve it
-3 = -12+b (+12)
b = 9
ANSWER: f (x) = -4x + 9
3 0
3 years ago
Please help! Brainliest and 5 star given
goldfiish [28.3K]

Answer:

for second question

first length is 9cm

Area=l*b

= 9cm *9cm

=81<em><u>cm</u></em>

then, For semicircle

radius is 9 cm

area= 1/2*9cm

now , area of two semi circle = 2*1/2*9

= 9 cm

now area of shaded = 81-9

=72

5 0
3 years ago
Hopefully this is better to answer. can you help? lol (';
solong [7]

Answer:

2

Step-by-step explanation:

1+1=2 and 2=2

6 0
3 years ago
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