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vichka [17]
3 years ago
14

A student started out poorly on his first mathematics test. However, he doubled his score on each of the next two tests. The thi

rd test grade was 100. What was the student’s average test grade? Round to the nearest tenth.
Mathematics
1 answer:
dsp733 years ago
6 0
His score is 50

How to:
First test grade:0
Second test grade:50
Third test grade: 100
Add all three and divide by 3
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Six sprinters are racing in a 100-meter dash. How many different ways can a gold, silver, and
horrorfan [7]

Answer:

Step-by-step explanation:

Explanation

6 sprinters are in a race. Any one of the 6 could win. None of them can win 2 medals. So the first result is 6

5 runners remain. The second medal goes to any one of the 5

4 runners remain after 1 of the 5 have been choosen.  Any one of the 4 could win.

Answer 6 * 5 * 4 = 120

There are 120 ways of awarding 3 medals to 6 people.

3 0
2 years ago
the length of a rectangle is 5 inches more then the width. the area of the rectangle is equal to 2 inches more than 4 times the
Svet_ta [14]
P = 2(L + W)
L = W + 5
A = 4P + 2

P = 2(W + 5 + W)
P = 2(2W + 5)
P = 4W + 10

A = 4P + 2
A = 4(4W + 10) + 2
A = 16W + 42

A = L * W
A = W(W + 5)
A = W^2 + 5W

W^2 + 5W = 16W + 42
W^2 + 5W - 16W - 42 = 0
W^2 - 11W - 42 = 0
(W + 3)(W - 14) = 0

W - 14 = 0
W = 14 <==

L = W + 5
L = 14 + 5
L = 19 <==

P = 2(19 + 14)
P = 2(33)
P = 66

A = L * W
A = 19 * 14
A = 266

answer : length = 19, width = 14....perimeter = 66....area = 266
5 0
3 years ago
If you know the answers pls put this <br> 1<br> 2<br> 3<br> 4<br> 5
Hitman42 [59]

Answer:

1.6 kids

2.6

3.6

4.6

5.6

Step-by-step explanation:

if you count by 6 then you will see that im right

4 0
2 years ago
Mark borrow $200 at 12% compound interest for 2 years if he makes no payments how much interest will he owe at the end of the se
Arlecino [84]
B (if annual interest), 
200+12%=224
224+12%=250.88
6 0
3 years ago
Help Plz AZAP! ONLY TWO QUESTIONS HELP!!!! THEY ARE DIFFERENT!
NeX [460]

Answer:

ask your math teacher

Step-by-step explanation:

get some help from a tutor.

6 0
3 years ago
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