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aniked [119]
2 years ago
14

A student answered 86 problems on a test correctly and received a grade of 98%. How many problems were on the test, if all the p

roblems were worth the same number of points?
Mathematics
1 answer:
Marrrta [24]2 years ago
8 0

Answer:

88 problems

Step-by-step explanation:

98% of the total is 86 problems answered correctly.

(0.98)x = 86

x = (86/0.98)

x = 87.551

We need a whole number, so round to 88 problems

You might be interested in
1p
goblinko [34]

Answer:

O 81 km per hour

Explanation

Given parameters:

Number of days traveled  = 3 days

Distance covered on the first day  = 1080km

Time of travel  = 10hrs

Rate of travel  = 108km/hr

Time of travel on second day = 12hrs

Rate of travel  = 90km/hr

Time of travel on third day  = 18hrs

Rate of travel  = 60km/hr

Unknown

Average speed  = ?

To find the average speed, we sum the distances and divide by the sum of the time.

  Average speed  = \frac{Total distance}{total time}

we do not know the second and third distances;

  Distance  = speed x time

D2  = 90 x 12 = 1080km

D3  = 60 x 18  = 1080km

    Now;

  Average speed  = \frac{1080 + 1080 + 1080 }{10 + 12 + 18 }

 

 Average speed  = \frac{3240}{40}   = 81km/hr

The average speed is 81km/hr

6 0
3 years ago
A rectangular prism has a height of 15 centimeters. The base of the prism has an area of 22 square centimeters. What is the volu
Tema [17]

Answer:

330cm^3

Step-by-step explanation:

22 only has 2 factors 11&2. So take 11•2•15=330 Doing it as 22•1•15 works as well.

6 0
2 years ago
Expand 2(p+q) ??????
soldier1979 [14.2K]

Answer:

2p+2q

Step-by-step explanation:

7 0
3 years ago
. A restaurant charges a $100 setup fee, plus $15 per guest, to host a private party. The table
netineya [11]

Answer:

42

Step-by-step explanation:

i said so

3 0
3 years ago
Read 2 more answers
Correct answers only pls.
Colt1911 [192]
-1.25 or -1 1/4 that’s because the dot is in between a half and a whole number so one half divided by two is 1/4
7 0
3 years ago
Read 2 more answers
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