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alexira [117]
3 years ago
10

What is the value of y in the equation 6.4x +2.8=44.4 , when x=3 ? y=

Mathematics
1 answer:
masha68 [24]3 years ago
8 0

Answer:

y=3.15

Step-by-step explanation:

I am assuming you meant 2.8y in your equation.

Plug in for x

6.4(3)+2.8y=44.4

6.4*3=19.2

So now 19.2 + 2.8y = 44.4

44.4-19.2=25.2

25.2/2.8=3.15

Meaning Y=3.15

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morpeh [17]
B. 3n^4 - 15n^3 + 12n^2
3 0
2 years ago
What is 1 divided by 5^-2? Please give clear explanation. thanks.
Pani-rosa [81]
1 / 5^-2

First, let's work out the denominator.
5^ -2 = 1/25. When an exponent is negative, it means to put a 1 over the product. Like we did earlier.

Now we have 1 / (1/25). 

1 / (1/25)
Divide 1 by 25.
1 / 0.04
Divide 1 by 0.04
25

The answer is 25!

Now if you make this answer as the Brainliest I will appreciate it very much. And for a limited time answer, and no scam or joke,  you will receive your very own flying space ship! No scam at all! Try it. Just press the mark as Brainliest and watch your spaceship land in your backyard! But seriously I will appreciate it if you mark this answer as the Brainliest.
7 0
2 years ago
I need help with this
Angelina_Jolie [31]
Answer: 256

F(8)=512- 768
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Hopes this helps
3 0
1 year ago
The temperature, T , of a given mass of gas varies inversely with its volume, V . The temperature of a certain gas with volume o
alekssr [168]
We know that

if t<span>he temperature T of a given mass of gas varies inversely with its volume V 
</span>then
T=k/V

Step 1
Find the value of k
for T=30º C and V=105 cm³
we have 
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therefore
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the answer is 37.5 °C
3 0
3 years ago
Can anyone help me? Brainlist if right! Thx :)
tamaranim1 [39]

Answer:

odd: 4/7

not 3: 6/7

4 or 5:  2/7

spinner spun 2: there both 1/7 i think im

only in 7th grade ;-;

Step-by-step explanation: well there are 7 spaces so the probabilty

of it landing on an odd space on the wheel is how many odd numbers there are over 7 . and there is only 1 three so the chance that it will not land on 3 is 6/7.  there is a 2/7 chance it will land on 4 or 5. and im not to sure abt the last one but like i said im  only in the 7th grade i am taking p classes tho so the rest should be right. :D        

4 0
2 years ago
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