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LenKa [72]
3 years ago
15

Gloria scored 75, 76, and 77 on the first three math tests. What score does she need on test #4 so that the mean of her scores w

ill be 80?​
Mathematics
1 answer:
skelet666 [1.2K]3 years ago
5 0

Answer:

77%

Step-by-step explanation:

(75+76+77+80) / 4 = 77

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Someone help and plz make sure it’s right :)
katrin2010 [14]
I’m pretty sure it’s it’s obtuse good luck
8 0
3 years ago
What’s 1.3837 to the 7th power?
Alinara [238K]

Answer:

9.71166

Step-by-step explanation:

In this kind of question,it means that 1.3837 raise to the power of 7

Which can be interpreted as 1.3837 ×1.3837 in seven times

It can be written as 1.3837^7

So to calculate this you can make use of calculator if it is available but if it's not available you can use your hand but the disadvantage is that it will consume your time

So to solve this now just say 1.3837^7

Then the answer is 9.71166

It can be rounded up to two decimal places And it gives 9.71..this is not actually necessary once it's not stated in the question to do so

So the final answer is 9.71166

6 0
3 years ago
Which expression has a negative value?
stiv31 [10]

Step-by-step explanation:

A - 3×3×-3×-3×-3 = 243

B - 3×-3×3 = 27

C - 3×3×-3×-3 = -81

D - 3×-3 = 9

The correct option is C

4 0
3 years ago
Read 2 more answers
2miles=0.5 hours <br> 1 1/3 hours=?miles
svetoff [14.1K]

we just cross multiply but in order:

2 miles = 0.5 hours

y miles = 1 1/3 hours

(then cross multiply)

answer should be : 1.33 miles

4 0
3 years ago
Find the potential solution to the equation log4(2 – x) = log4(–5x – 18).
NNADVOKAT [17]
Log₄(2 – x) = log₄(–5x – 18).

Since the logs have the same basis (4) & are equal then:

(2 – x) = (–5x – 18).  . Now solve for x & you will find x = -5
4 0
3 years ago
Read 2 more answers
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