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nikdorinn [45]
3 years ago
13

1.4 + 2/5x = 3/15x - 0.8 How do you solve this?

Mathematics
1 answer:
Rama09 [41]3 years ago
8 0
It appears you are looking for x.
1.4+2/5x=3/15x-.08

you have to isolate the x
 first add .08 to both sides
1.48+2/5=3/15x
i would now find the equivalence fraction of 2/5 with the denominator of 15. To do this you have to multiply 5 by 3 to get 15 so, you multiply the original numerator to get the equivalent one. 2(3)=6 
1.48+6/15x=3/15x
now i am going to subtract 6/15x from both sides
1.48=  -3/15x
to get rid of the fraction i am going to convert it to a decimal.
-3/15= -.2

1.48= -.2x

now i have to divide both sides by -.2
7.4=x


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Alona [7]
Answer:
3x^2 (y^5)^1/4 which is the first choice

Explanation:
The fourth root means that the bracket under has the root has a power of 1/4.
So, the given expression is:
(81 * x^8 * y^5)^1/4
Now, we will distribute the power as follows:
(81 * x^8 * y^5)^1/4 = (81)^1/4 * (x^8)^1/4 * (y^5)^1/4
                               = 3 * x^2 * y^5/4
This expression is equivalent to:
3x^2 (y^5)^1/4 which is the first choice

Hope this helps :)

8 0
3 years ago
Urgent !!!!!!!!!!!!!!! 10 points
Mademuasel [1]

Answer:

136 cm²

Step-by-step explanation:

Surface area = 2(lw+wh+hl)

l = 7

w = 2

h = 6

so,

2(7×2+2×6+7×6)

= 136 cm²

6 0
3 years ago
Read 2 more answers
Solve 5n + 6 = -3n - 10
Verizon [17]

Hi there! :)

Answer:

\huge\boxed{n = -2}

5n + 6 = -3n - 10

Solve for n:

Add 3n to both sides:

5n + 3n + 6 = -3n + 3n - 10

8n + 6 = -10

Subtract 6 from both sides:

8n + 6 - 6 = -10 - 6

8n = -16

Divide both sides by 8:

8n/8 = -16/8

n = -2.

3 0
3 years ago
Read 2 more answers
Round the number to the place indicated.<br> Round to the nearest tenth: 1.4511
Evgen [1.6K]
1.500 since 45 rounds to 50
8 0
3 years ago
Answer the question above.
Shtirlitz [24]
Please upload the question and i will work it out, have a lovely day!
8 0
3 years ago
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