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Sophie [7]
3 years ago
9

Which is the location of the dairy?

Mathematics
1 answer:
mixer [17]3 years ago
6 0

Answer:

the uter of a cow.......

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A test is worth 80 points. Multiple-choice questions are worth 2 points, and
gavmur [86]

Answer:

<u>There are 10 multiple-choice questions and 15 short-answer questions in the test</u>

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

Test worth 80 points

Multiple-choice questions are worth 2 points

Short-answer questions are worth 4 points

Multiple-choice questions + Short-answer questions = 25

2. How  many multiple-choice questions are there?

Let's solve this problem, this way:

m = Multiple-choice questions

s = Short-answer questions

Our equations system is:

m + s = 25

2m + 4s = 80

Solving for m in the 1st equation:

m + s = 25

m = 25 - s

Substituting m in the 2nd equation and solving for s:

2m + 4s = 80

2 * ( 25 - s) + 4s = 80

50 - 2s + 4s = 80

2s = 80 - 50

2s = 30

<u>s = 30/2 = 15</u>

Substituting s in the 1st equation and solving for m:

m = 25 - 15

<u>m = 10 </u>

<u>There are 10 multiple-choice questions and 15 short-answer questions in the test</u>

4 0
3 years ago
1 point
kari74 [83]
Hmmm i think it’s $37.20
7 0
3 years ago
Dana has 4 hours to spend training for an upcoming race. She completes her training by running full speed the distance of the ra
Sedaia [141]

Answer:

2hrs 40 minutes

Step-by-step explanation:

The formula for distance is expressed as:

d=st, s=speed, t=time

#The time taken to run:

d=st\\\\t=d/s\\\\t_r=d/8

#The time taken to walk:

d=st\\\\t=d/s\\\\t_w=d/2

#Since the distances are the same:

d_r=8t_r,d_w=2t_w\\\\8t_r=2t_w\\\\t_r+t_w=4->t_w=4-t_r\\\\\therefore8t_r=2(4-t_r)\\\\8t_r=8-2t_r\\\\t_r=1\frac{1}{3} \hrs\\\\t_w=4-1\frac{1}{3}=2\frac{2}{3}\ hrs

Hence, Dana spends 2hrs 40 minutes walking back

8 0
3 years ago
Solve for b:<br> 6b + 6b + 9 -9 = 4(3b)
Travka [436]
Combine like terms so 12b=12b
Then divide by 12 which then b=1
5 0
2 years ago
Multiple Choice
inessss [21]
Answer:
B
Step-by-step explication:
(1/4)/(3/8)=(2/3)
5 0
3 years ago
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