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oksian1 [2.3K]
3 years ago
6

A math test is worth 100 points and has 30 problems. Each problem is worth either three points or four points. How many four Pro

blems are there?
Mathematics
1 answer:
kvv77 [185]3 years ago
7 0
If all were 3-point problems, the test would be worth 90. In order to add 10 points to the value, 10 4-point problems are needed.
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Suppose the cost of college tuition is expected to increase 5% every year. How much will the tuition at a comunity college cost
evablogger [386]

Answer:

$7,596.43

Step-by-step explanation:

The cost of the college tuition is increasing 5% compounded annually for 5 years.

∴ A = P(1 + r%)ⁿ

where A = tuition fee after 5 years.

           P = current tuition

           r = rate of increase

            n = period

A =  $5,952(1 + 5%)⁵

     = $5,952(1 + 0.05)⁵

     =  $5,952 × 1.05⁵

     = $7,596.43

    =

8 0
3 years ago
Read 2 more answers
Please factorise 16p²-9q² for me<br>​
kirill115 [55]

Answer:

a ^ 2 - b ^ 2 = ( a + b ) ( a - b ) where a = 4p and b = 3q.

( 4p + 3q ) ( 4p - 3q )

7 0
2 years ago
Use a benchmark to find an equivalent percent for each fraction. 9/10 and 2/5. Please help! :o will mark brainliest if can!
denpristay [2]

Answer

9/10=<u>90%</u> and 2/5=<u>40%</u>

Explanation

9÷10=0.9   0.9x100=90%

2÷5=0.4   0.4x100=40%

<em>hope this helps!</em>

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3 0
3 years ago
Jacob made a circle-shaped poster for his geometry class.
krok68 [10]
<span>circumference is L=2\pi r
L=2π9=18π=18*3.14=56.52 in
Answer:  </span>circumference is <span>18π or 56.52 in</span>
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3 years ago
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liq [111]
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I’m sorry if it’s not clear this is my first answered question.
3 0
3 years ago
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