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PSYCHO15rus [73]
3 years ago
14

What is the value of x?

Mathematics
1 answer:
Lelechka [254]3 years ago
5 0
X = 35

use the formula a^2 + b^2 = c^2 in order to find the hypotenuse, which is x.

21^2 + 28^2 = c^2
441 + 784 = c^2
1225 = c^2
35 = c

x = 35
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Jack's school is 6 km from his home. He goes to school by bus. One day on the way to school due to road construction the bus had
Setler79 [48]

Answer:

<h2>The bus was 1250 meters away from school</h2>

Step-by-step explanation:

Given that the total distance of the school from home is 6km

converting 6km to meters we have 6,000m

Since the bus stopped at 4750 meters from his home.

The remaining distance is the distance the bus is from his school

i.e 6000-4750= 1250 meters

8 0
3 years ago
Which two expressions are used to solve this problem?
kari74 [83]
Your first equation would be (97-25)/8
Then, your equation is 72/8
The answers are D and B!

Hope this helps!
4 0
4 years ago
A dairy wishes to mix together 1,000 pints of milk that contains 8% butterfat. if the mixture is to be made from milk containing
cricket20 [7]
We can write the question as a mathematical formula as follows:  
1000 * 0.08 = m * 0.05 + c * 0.2
 1000 = m + c  
where m are pints of milk and c are pints of cream 
 So solving the first equation with m = 1000 - c
 1000*0.08 = (1000-c)*0.05 + c*0.2
 80 = 50 - 0.05c + 0.2c
 80-50 = (0.2-0.05)*c
 30 = 0.15*c
 c = 30/0.15
 c = 200 
 m = 1000-200 = 800 
 So the dairy needs 800 pints of milk and 200 pints of cream
8 0
3 years ago
Read 2 more answers
A quadrilateral ABCD has the area 10 square feet. After a dilation with a scale factor of 3, find the area of quadrilateral A'B'
gtnhenbr [62]

10 x 3^2

= 10 x 9

= 90

5 0
3 years ago
Suppose P(A)=0.9, P(B)=0.4 and P(B|A)=0.2. What is P(A|B)?
Leokris [45]
The answer is 0.45

------------------------------------

Work Shown:

P(B|A) = P(B and A)/P(A)
0.2 = P(B and A)/0.9
0.2*0.9 = P(B and A)
0.18 = P(B and A)
P(B and A) = 0.18
P(A and B) = 0.18

P(A|B) = P(A and B)/P(B)
P(A|B) = 0.18/0.4
P(A|B) = 0.45
3 0
3 years ago
Read 2 more answers
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