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finlep [7]
2 years ago
7

Mac has taken seven maths exams this year. His average mark is 78%. What mark must he get on the eighth exam to raise his averag

e to 80%?
Mathematics
1 answer:
mash [69]2 years ago
4 0

Answer:

94

Step-by-step explanation:

7*78 + x = 8*80

x = 94

Or, think that he was short 2 points on each of 7 tests, so he has to make them all (14) up on the last test.

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If m ACB =(11x-32),find the value of x
Digiron [165]

Answer: x= acb/11 + 32/11

Step-by-step explanation:

Solve for  x  by simplifying both sides of the equation, then isolating the variable.

8 0
4 years ago
A zoo has 2 male lions one sixth oh the lions are male lions how many lions are there at the zoo ?
Deffense [45]
I'm guessing there are 12 lions since half of twelve is 6 and there is only 2 male lions. I would put down 12. Hope that helps!
8 0
4 years ago
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The population of a town is 58,000 and is growing by 23% per year. If the trend continues, what will the population be in 8 year
mina [271]

The population in 8 yrs would be 164,720

6 0
3 years ago
I know it’s a lot but 23 points and will make brainliest!!!<br> Please do 5-10
hodyreva [135]

Answer:

5, 20 - 52 = x

6, x - 27 = 5

7, 4 + x = 6

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Step-by-step explanation:

hope this is what u wanted.

brainiest please

5 0
3 years ago
A little help pls this old i don't remember any of it
liraira [26]

Answer:

Bowling ball

Step-by-step explanation:

A bowling ball has much more mass than all three of the other choices and the amount of kinetic energy is determined based on a object's mass and velocity, but in this case, all 4 balls are traveling at the same velocity. Therefore, we know that the bowling ball has much more mass so therefore it has the most kinetic energy.  

7 0
3 years ago
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