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REY [17]
2 years ago
14

If you answer 9 questions incorrectly on your science test you will earn a score of 70%. How many total

Mathematics
2 answers:
solmaris [256]2 years ago
8 0

Answer:

The total of questions is 30

Step-by-step explanation:

If with 9 incoreccet answer we get 70%

9 incorect answers equal 100% -70% = 30%

The number of questions for 70% is

9/30x70=21

Total of questions= 21+9=100

Verification

21/30x100=70%

Dmitrij [34]2 years ago
4 0

Answer:

30 questions on the test

Step-by-step explanation:

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A train is travelling at a constant speed in ten minutes it travels 24 km work out how far it travels in 20 minutes
Elina [12.6K]
If it travels at a constant speed for twice the amount of time, the train should travel twice the distance, or 24 * 2 = 48 km.
8 0
3 years ago
20, 70, 110, 140, 160, ___ what’s the next sequence?
spin [16.1K]

Answer:

D (i hope)

Step-by-step explanation:

When you minus the highest to the lowest it is added by 10 so

160-140= 20

140-110=30

110-70= 40

70-20= 50

I had added 10 to 160 and got 170

7 0
3 years ago
What is the finance charge on $13,300 financed at 7.9 percent for 4 years if the monthly payment per $100 is $2.44?
luda_lava [24]

If you borrowed $100, then your monthly payment is $2.44

If you borrowed $200, then your monthly payment is 2*2.44 = 4.88

etc etc

We can set up a proportion

2.44/100 = x/13300

to figure out the monthly payment x. Cross multiply and solve for x

2.44*13300 = 100*x

100x = 2.44*13300

100x = 32452

x = 32452/100

x = 324.52

So the monthly payment is $324.52

An alternative way to get this monthly payment is to apply 2.44% to 13300, which is another way to view the phrase  "monthly payment per $100 is 2.44"

------------------

There are 48 months in 4 years (start with 12 mon = 1 yr, then multiply both sides by 4) so we multiply 48 by the monthly payment to get the result 48*324.52 = 15,576.96. This is the total amount you have to pay back which is the principal plus interest.

Subtract off the principal (amount borrowed) to find the interest or finance charge: 15,576.96 - 13,300 = 2,276.96

Answer: Choice B

5 0
4 years ago
A triangular prism has a height of 9 inches. The triangular base has a base of 3 inches and a height of 8 inches. Find the volum
AfilCa [17]
I think it's 106.08 in²
4 0
4 years ago
) Choose ALL the numbers that are less than 6.58. 6.583 6.5 6.58 5.98 6.538 6.49​
bonufazy [111]

Answer:

6.5, 6.49

Step-by-step explanation:

3 0
3 years ago
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