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4 years ago

15

Together, Tom and max have 72 football cards. Tom has 2 more than 4 times as many cards as max has. How many football cards does

Tom have?

1 answer:

frosja888 [35]4 years ago

4 0

Tom has 58 football cards

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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

$22y=110$

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

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

$y=5$

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

$7x-y=51$

$7x-5=5$

$7x=56$

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

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

$x=8$

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

$x=8,\:y=5$

7 0

3 years ago

6 stuffed peppers cost $36.What Will 12 stuffed peppers Cost?

Olegator [25]

You can find the answer by first dividing 12 by 6 which = 2
so multiply 36 by 2 which =72
72 is your answer ;) hope this helps

6 0

3 years ago

12.7 = x – 3.8 help again

PilotLPTM [1.2K]

Answer:

x=16.5

Step-by-step explanation:

12.7 + 3.8 = x - 3.8 + 3.8

16.5 = x

6 0

3 years ago

Read 2 more answers

What does 6/8 equal to In equivalent fraction

kicyunya [14]

3/4 is equivalent to 6/8

6 0

4 years ago

Which number would make the statement true? (2 points)

alexandr402 [8]

Answer:

0.253

Step-by-step explanation:

since it is greater than 0.243

5 0

2 years ago

Read 2 more answers