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netineya [11]
3 years ago
9

the next Science test will have 50 questions.How many questions does Julia need to answer correctly to recieve a score of 90%

Mathematics
2 answers:
andrezito [222]3 years ago
5 0
She will have to answer 45 questions right because if you multiply 50×.90. You will get 45, so she can only get 5 questions wrong.
Katarina [22]3 years ago
3 0
Julie will need to answer 45 questions correctly to receive a score of 90%
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What is 400 percent as a mixed number?
prohojiy [21]
You can put 400/100 to get the fraction 4/1 or 4, it is not a mixed number though. So the final answer is 4
8 0
3 years ago
Complete the table and find the balance A if $5000 is invested an an annual rate of 6% for 15 years and compounded n times a yea
Olenka [21]

Answer:

1: 11982.79

2: 12136.31

4: 12216.09

12: 12270.46

365: 12297.10

Step-by-step explanation:

The compound interest formula is A=P*(1+r/n)^nt

P=principal amount

r=rate

n=number of compounds per period

t=number of periods

In this situation, the principal amount is 5,000=P. The rate is 6%, so r=0.06. n is equal to the top number in the table. And this is 15 years, so t=15.

For 1, it would be A=5,000*(1+.06/1)^1*15, or A=5,000(1.06^15), or 11982.79.

For 2, it would be 5,000*(1+.06/2)^2*15, or 5,000*(1.03^30), or 12136.31.

And so forth. Good luck

5 0
3 years ago
a company making washing machines works out that the probability of a new washing machine working perfectly is 0.972 what is the
andreyandreev [35.5K]

Answer:

0.028

Step-by-step explanation:

1 - P good = P faulty

1 - 0.972 = 0.028

4 0
3 years ago
the local Swim Center is making a special offer they regular charge is $7 per day to swim at the pool the special offer would ha
algol [13]
To fill in the first column = 
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The second one would be = 
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Hope this helps!
8 0
3 years ago
Lucy is going to walk in a fundraising event to raise money for her school band. Her mother has agreed to donate $7.50 to the sc
Readme [11.4K]

Answer: y = $7.50x + $25

Step-by-step explanation:

From the question, we are informed that Lucy is going to walk in a fundraising event to raise money for her school band and her mother has agreed to donate $7.50 to the school for each mile that Lucy walks, plus an additional $25.

The equation that represents y, the total amount of money Lucy's mother will donate if Lucy walks x miles during the event will be:

= ($.750 × x) + $25

y = $7.50x + $25

Since Lucy walks x Mike's, we multiply x by $7.50 and then add the answer to the additional $25 which is the answer gotten above.

7 0
4 years ago
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