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3 years ago

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Two ladders are leaning against a wall at the same angle, as shown. How long is the short ladder? (The long ladder is 70×50) (Th

e short ladder is 20×?)
A.) 28 ft
B.) 175 ft
C.) 25 ft
D.) 20 ft

1 answer:

Ahat [919]3 years ago

6 0

Idk but add me on epic my username is APB1203

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Austin had 1200 apples eaten in his hole life. Austin is 22 years old . how many apples did he eat per year?

Papessa [141]

Answer:

54.54

Step-by-step explanation:

If you take 1200 and divide it by 22, you get this. Hope it helps!

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the first few steps in solving the quadratic equation 5x2 27x = 14 − 13x by completing the square are shown. 5x2 27x = 14 − 13x

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The best step to do next is to add 80 to both sides of equation:
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88

Step-by-step explanation:

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Which on the answer please help

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Homework: 5.1 Systems of Linear Equations

Klio2033 [76]

Answer:

$\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:}$

$x=8,\:y=5$

Step-by-step explanation:

Given the system of linear equations

$7x-y=51$

$x+3y=23$

solving by the elimination method

$\begin{bmatrix}7x-y=51\\ x+3y=23\end{bmatrix}$

$\mathrm{Multiply\:}x+3y=23\mathrm{\:by\:}7\:\mathrm{:}\:\quad \:7x+21y=161$

$\begin{bmatrix}7x-y=51\\ 7x+21y=161\end{bmatrix}$

$7x+21y=161$

$-$

$\underline{7x-y=51}$

$22y=110$

so

$\begin{bmatrix}7x-y=51\\ 22y=110\end{bmatrix}$

now solving for y

$22y=110$

$\mathrm{Divide\:both\:sides\:by\:}22$

$\frac{22y}{22}=\frac{110}{22}$

$y=5$

$\mathrm{For\:}7x-y=51\mathrm{\:plug\:in\:}y=5$

$7x-y=51$

$7x-5=5$

$7x=56$

$\mathrm{Divide\:both\:sides\:by\:}7$

$\frac{7x}{7}=\frac{56}{7}$

$x=8$

$\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:}$

$x=8,\:y=5$

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3 years ago