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riadik2000 [5.3K]
3 years ago
15

Due to nght please help part 2 !

Mathematics
2 answers:
mash [69]3 years ago
5 0

Answer:

t≤ 9

Step-by-step explanation:

3.5+4t≤ 39.5

subtract 3.5 from each side

4t≤ 36

divide each side by 4

t≤ 9

skad [1K]3 years ago
3 0

Answer:

t ≤ 9

Step-by-step explanation:

3.5 + 4t ≤ 39.5

3.5 + 4t - 3.5 ≤ 39.5 - 3.5

4t ≤ 36

4t ÷ 4 ≤ 36 ÷ 4

t ≤ 9

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A student has received the following test scores: 71%, 89%, 72%,
lidiya [134]

Answer: 81%

Step-by-step explanation:

From the question, we are informed that a student received the following test scores: 71%, 89%, 72%,

84% and 83% in 5 tests and the student wants to maintain an average of 80%.

The lowest score/grade they can receive on the next test to maintain at least an 80% average first thus:

First, to make it easy we can remove the percent sign. Then we multiply 80 by 6 since we're calculating for 6 tests scores. This will be:

= 80 × 6

= 480

We then add all the 5 test scores. This will be:

= 71 + 89 + 72 + 84 + 83

= 399

We then subtract the values gotten. This will be:

= 480 - 399

= 81

This means the student must get at least 81%

5 0
3 years ago
If it took 28 minutes to run 4 miles, then at that rate, how long would it take to run 20 miles?
SSSSS [86.1K]

Answer:

140 minutes

Step-by-step explanation:

After 28 mins you've gone 4 miles, assuming this rate is constant and you dont slow down or speed up, in order to get to 20 miles you will have run 5x as much (20/4 = 5), thus 5x the amount of time (28x5).

20/4 = 5

5x28 = 140

8 0
2 years ago
Read 2 more answers
A trader purchased an article for 250 naira. At what price must he sell to make a profit of 20%?​
Misha Larkins [42]

Answer:

300

Step-by-step explanation:

10% of 250 is 25. so 20% is 50

250 + 50 = 300

3 0
3 years ago
Write an expression equivalent to h^6/h^3 in the form of h^m
Pavel [41]

Answer:

h^3 = h^m

Step-by-step explanation:

\frac{h^6}{h^3} = h^m

6 - 3 = 3

keep the base same, therefore

h^3 = h^m

Hope this helps!

3 0
3 years ago
Can somebody help me please
Mrac [35]
Answer:
A=(1/2)BxH
10x6=60m
4 0
2 years ago
Read 2 more answers
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