2 years ago

Write a fraction that can be used to represent the same value of the decimal number 0.78

Mathematics

1 answer:

avanturin [10]2 years ago

8 0

Answer:

$\frac{78}{100}$

If you need a simplified fraction then $\frac{39}{50}$

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Find the surface area of the following triangular prism. surface area=_________ ft²

Scorpion4ik [409]

Answer:

312 ft²

Step-by-step explanation:

3 rectangles

2 triangles

4 yd = 12 ft

A = 4ft×12ft + 8ft×12ft + 10ft×12ft + 2×6ft×8ft/2

= 48ft² + 96ft² + 120ft² + 48ft²

= 312 ft²

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3 years ago

3x + y = 19 , and x + 3y = 1. Find the value of 2x + 2y

soldi70 [24.7K]

$3x+y=19 \\
x+3y=1 \\ \\
\hbox{add the sides of the equations:} \\
3x+x+y+3y=19+1 \\
4x+4y=20 \\ \\ \hbox{divide both sides by 2:} \\
2x+2y=10$

The answer is d. 10.

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3 years ago

Find the midpoint of the line segment joining the points (7,1) and (-1,-1)

chubhunter [2.5K]

= x1 + x2/2 , y1 + y2/2
= 7+-1/2 , 1+(-1)/2
Midpoint = (3,0)

6 0

2 years ago

Solve and check 8-(6-8x) =4x+4

navik [9.2K]

Greetings!

"Solve and check $8-(6-8x)=4x+4$ "...

Solve for x:
 $8-(6-8x)=4x+4$
Remove the Parenthesis.
$8-6-8x=4x+4$
Simplify.
$2-8x=4x+4$
Add -4 to both sides.
$(2-8x)+(-4)=(4x+4)+(-4)$
Simplify.
$-2-8x=4x$
Add 8x to both sides.
$(-2-8x)+8x=(4x)+8x$
Simplify.
$-2=12x$
Divide both sides by 12.
$(-2)/12=(12x)/12$
Simplify.
$-0.166666667=x$

The answer is: x=-0.166666667

Hope this helps.
-Benjamin

7 0

2 years ago

Write 4.510in word form

ehidna [41]

Hello there,
4.510 in word form is four and fifty-one hundredths.

Hope this helps! :)

3 0

2 years ago