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Gelneren [198K]
3 years ago
15

diana and marc are raising money for their class trip by sleling gift wrapping paper.marc raise 39$ by selling 5 rolls of red wr

apping paper and 2 rolls of foil wrapping papree Diana raisee 57$ by selling 3 rolls pf red wrapping paper and 6 rolls.of.foil paper for how much are diana and marc selling each rool of red and foil wrapping paper?
Mathematics
1 answer:
Alex3 years ago
8 0
They are selling the wrapping paper for $5 each and selling the foil wrapping for $7 dollars each.

39=5(5)+2(7)
57=3(5)+6(7)
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PLEASE HELP
Lena [83]

Answer:

11.4 cm

Step-by-step explanation:

Using pythagoras theorem,

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2 years ago
Solve the following equation algebraically show the steps: <br><br><br> n/3 -5 = 5
Lana71 [14]

\longrightarrow{\green{   \: n = 30 }} 

\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\red{:}}}}}

\frac{n}{3}  - 5 = 5

➼ \:  \frac{n}{3}  = 5 + 5

➼ \:  \frac{n}{3}  = 10

➼ \: n = 10 \times 3

➼ \: n = 30

Therefore, the value of n is 30.

\large\mathfrak{{\pmb{\underline{\blue{To\:verify}}{\blue{:}}}}}

\frac{30}{3}  - 5 = 5

✒ \: 10 - 5 = 5

✒ \: 5 = 5

✒ \: L.H.S.=R. H. S

Hence verified.

\bold{ \green{ \star{ \orange{Mystique35}}}}⋆

7 0
2 years ago
the length of the longer leg of a right triangle is 3 ft more than three times the length of the shorter leg. the length of the
Ulleksa [173]

with the pythagorean theorem

\begin{gathered} (4+3x)^2=x^2+(3+3x)^2 \\ 16+24x+9x^2=x^2+9+18x+9x^2 \\ 16+24x+9x^2=10x^2+18x+9 \\ 16+24x+9x^2-9=10x^2+18x+9-9 \\ 9x^2+24x+7=10x^2+18x \\ 9x^2+24x+7-18x=10x^2+18x-18x \\ 9x^2+6x+7=10x^2 \\ 9x^2+6x+7-10x^2=10x^2-10x^2 \\ -x^2+6x+7=0 \end{gathered}

using the formula of the quadratic equation

\begin{gathered} x_{1,\: 2}=\frac{-b\pm\sqrt{b^2-4ac}}{2a} \\ x1=\frac{-6+\sqrt{6^2-4\left(-1\right)\cdot\:7}}{2\left(-1\right)}=-1 \\ x2=\frac{-6-\sqrt{6^2-4\left(-1\right)\cdot\:7}}{2\left(-1\right)}=7 \end{gathered}

the length cannot be negative, therefore x=7

length of the shorter leg is: 7ft

length of the longer leg is: 3+3(7)= 24ft

length of the hypotenuse is: 4+3(7)= 25ft

5 0
1 year ago
What is 5/6 times 12
viktelen [127]
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3 years ago
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Which graph represents a function with direct variation?<br><br>​
sweet [91]

This is easier than you think!

When a graph shows direct variation, it always <em>passes through the origin</em>

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The very <u>center! </u>

Your answer is the first graph!

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