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poizon [28]
3 years ago
10

A multiple choice test consists of 100 questions. A correct answer is worth 2 marks, while an incorrect answer is worth -1 marks

. If a student receives a score of 89, how many questions did this student answer in correctly
Mathematics
1 answer:
Papessa [141]3 years ago
5 0

Answer:the answer is 44.50

Step-by-step explanation:

since the right answer worth more than the wrong then you have to put 89 divide by 2 because two is how much point the correct answer worth.

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What is 7 devided by 245 and show work
agasfer [191]

1. <span>Set up the long division.
</span>
<span>245/7</span>

2. <span>Calculate 700 ÷ 245, which is 2 with a remainder of 210.
</span>
<span><span>0.02</span><span>245/7.</span><span>4.90</span><span>2.10</span></span>

3. <span>Bring down 0, so that 2100 is large enough to be divided by 245.
</span>
<span><span>0.02</span><span>245|/.</span><span>4.90</span><span>2.100</span></span>

4. <span>Calculate 2100 ÷ 245, which is 8 with a remainder of 140.
</span>
<span><span>0.028</span><span>245|/.</span><span>4.90</span><span>2.100</span><span>1.960</span><span>140</span></span>

5. <span>Bring down 0, so that 1400 is large enough to be divided by 245.
</span>
<span><span>0.028</span><span>245/7.</span><span>4.90</span><span>2.100</span><span>1.960</span><span>1400</span></span>
6. <span>Calculate 1400 ÷ 245, which is 5 with a remainder of 175.
</span>
<span><span>0.0285</span><span>245|7.</span><span>4.90</span><span>2.100</span><span>1.960</span><span>1400</span><span>1225</span><span>175</span></span>

7. <span>Therefore, 7 divided by 245 approximately equals 0.0285
</span><span><span>7÷245≈0.0285</span></span>

8. <span>Simplify
</span><span><span><span>0.0285  <------------- Answer :) </span></span>
</span>

8 0
3 years ago
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