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klasskru [66]
4 years ago
6

Sam correctly answered 80% of the questions on his last math test if he missed 3 problems how many questions were on the test

Mathematics
1 answer:
Dominik [7]4 years ago
6 0
Hello There!

100% - 80% = 20%
20% = 3
Therefore, 10% = 1.5
100% = 10 x 10%
100% = 10 x 1.5
100% = 15.

There were 15 questions.

Hope This Helps You!
Good Luck :) 

- Hannah ❤
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It cost Hudson $28.20 to send 188 text messages. How much would it cost to send 63 text messages? Good luck!
frosja888 [35]

Answer:

$9.45

Step-by-step explanation:

1.  First, you want to figure out how much one text message costs.  To do this, divide the dollar amount (28.20) by the number of text messages (188).  You get 0.15, or $0.15 per text message.

2. Using this $0.15 per text message, you can calculate how much 63 text messages costs.  You simply multiply $0.15 by 63 to get $9.45, which is your answer.

Hope this helps! :)

3 0
3 years ago
Which properties did Marty use?<br><br> Thank you very much!!
nadezda [96]

Answer:123

Step-by-step explanation:

5 0
4 years ago
(2w-5)(w+7) so far I got 2w^2 + 9w + ?
FromTheMoon [43]

Answer:

=2w2+9w−35

Step-by-step explanation:

(2w+−5)(w+7)

(2w)(w)+(2w)(7)+(−5)(w)+(−5)(7)

2w2+14w−5w−35

2w2+9w−35

7 0
3 years ago
What is 5.4 x 2 3/4 show your work
VladimirAG [237]

Answer:

14.85

Step-by-step explanation:

4.4 x 2.75 = 14.84

       2.75

       4.4

      -------

     (Multiply it out)

3 0
4 years ago
Read 2 more answers
What is the quadratic in vertex form that has a vertex of (-1, 5)<br><br> Options in image
dimaraw [331]

Answer:

Third option

y = (x+1) ^ 2 + 5

Step-by-step explanation:

In this case we must write a quadratic equation in the vertex form.

We have the vertice. (-1, 5)

We know that the vertex form for a quadratic equation is:

y = (x-h) ^ 2 + k.

Where (h, k) is the vertex.

So if the vertex is (-1, 5), the equation sought is:

y = (x-(-1)) ^ 2 + 5

y = (x+1)) ^ 2 + 5

Therefore the answer is the Third option.

5 0
3 years ago
Read 2 more answers
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