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Radda [10]
4 years ago
13

Add together 8.03 m 1.26 m 0.5 m 4.09 m 3.5 m

Mathematics
2 answers:
trasher [3.6K]4 years ago
8 0

Answer:

17.38m

Step-by-step explanation:

lord [1]4 years ago
8 0

Answer:

17.38m

Step-by-step explanation:

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If y-3x=9, 7x+y=25, what is the value of x and y?
lianna [129]

\bold{\rm{Given}}\text{ : If y - 3x = 9, 7x + y = 25, what is the value of x and y}?

\bold{\rm{Solution}} \text{: We'll solve this by substitution method}

\dashrightarrow  y - 3x = 9 \\  \\  \dashrightarrow   \boxed{y = 9 + 3x } \qquad .. \sf eq(1)

\text{we got the value of y now getting the value of x}

\looparrowright 7x + y = 25 \\  \\  \looparrowright 7x = 25 - y \\  \\  \looparrowright  \boxed{x =   \frac{25 - y}{7}} \qquad .. \sf eq(2)

\text{Now, putting y = 9 + 3x in eq(2)}

\hookrightarrow  x =  \frac{25 - y}{7}   \\  \\ \hookrightarrow  x =  \frac{25 - 9 + 3x}{7}  \\  \\ \hookrightarrow  7x =  25 - 9 + 3x \\  \\ \hookrightarrow  7x - 3x =  16 \\  \\ \hookrightarrow  4x = 16 \\  \\ \hookrightarrow  x =  \frac{16}{4}  \\  \\ \star \quad  \boxed{ \green{ \frak{ x = 4}}}

\text{Now we know the value of x, for getting y we need to put x in eq(1)}

: \implies y = 9 + 3x \\  \\   : \implies y = 9 + 3(4) \\  \\  : \implies y = 9 + 12  \\  \\    \star \quad  \boxed{\frak{  \green{y = 21}}}

\text{Hence, values of x and y are} \:  \frak{ \green{4}}  \: \text{and} \:  \frak{ \green{21}} \: \text{respectively}.

4 0
3 years ago
Alberto is painting a large triangle on one wall of his bedroom. The base of the triangle is 4 feet, and the height is 8 feet. I
Mila [183]
The awnser would be 1.6 square feet beacause 8 times 0.2
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3 years ago
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3k+15=66<br> k=-7;k=17;k=27
mash [69]
3k + 15 = 66
3k = 66 - 15
3k = 51
k = 51/3
k = 17
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3 years ago
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Does 9, 12, and 14 make a right triangle
dolphi86 [110]
I would believe no ... if 14 was a 15 yes
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3 years ago
Which triangle on the coordinate grid is a translation of triangle F? triangle ___​
pogonyaev
It’s triangle G, bc it was moved up by 4 units.
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