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wariber [46]
3 years ago
12

2/10 (4/5)-(5/2)+ (10)

Mathematics
2 answers:
salantis [7]3 years ago
8 0

Answer:

\frac{383}{50} = 7.66

Step-by-step explanation:

\frac{2}{10}(\frac{4}{5})-(\frac{5}{2})+10

= \frac{4}{25} -\frac{5}{2}+10

=\frac{383}{50} = 7.66

Dima020 [189]3 years ago
7 0

Answer:

2/10 (4/5)-(5/2)+ (10)=7.66

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musickatia [10]

Answer:

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Step-by-step explanation:

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6 0
3 years ago
Please help its from the lines and angles chapter
Murrr4er [49]

This is the answer of this question

4 0
3 years ago
David bought 3 dvds and 4 books for $40 at a yard sale. Anna bought 1 dvd and 6 books for $18. How much did each dvd and book co
Ber [7]

Answer:

A book is worth $1 and a DVD is worth $12.

Step-by-step explanation:

The equations (2 unknowns and two equations, d is for a DVD and b is for a book):

For David: 3d+4b=40

For Anna: d+6b=18

Now multiply the second equation with -3 and add to the first equation:

3d+4b=40

−3d−18b=−54

Combined equation: −14b=−14 and b=1 (means that each book is worth $1).

 

Now for DVD price, use the second equation:

d=18−6 or d=12 (means that each DVD  is worth $12).

A book is worth $1 and a DVD is worth $12.

8 0
3 years ago
What is (y-10)(4y+2)?
AleksandrR [38]

Answer:

4y²−38y−20

Step-by-step explanation:

(y−10)(4y+2)

=(y+−10)(4y+2)

=(y)(4y)+(y)(2)+(−10)(4y)+(−10)(2)

=4y²+2y−40y−20

=4y²−38y−20

please mark me brainliest!

8 0
3 years ago
Read 2 more answers
Maths question trigonometry help pleassssee
r-ruslan [8.4K]

Answer:

x=4.5

Step-by-step explanation:

Using sohcahtoa we know tangent is equal to (length of side opposite to the angle ) / (lenth of side adjacent to the angle)

therefore: tan (theta) = (x-3) / (x) = 1 / 3

now cross multiply

3(x-3) = x

now solve for x

3x - 9 = x

-9= -2x

x= 4.5

7 0
2 years ago
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