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3 years ago

Please answer dis question

Mathematics

1 answer:

Ymorist [56]3 years ago

3 0

Answer:

Step-by-step explanation:

A = 4

B = 5

Theres a 1 number diffrence.

(sorry if its wring its 12am im tired-

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Write an equation for each context. Draw a model first if necessary, and make sure you define your variable and what it represen

natta225 [31]

Answer:

a. $6x+1240=12484$

$x_1+x_2+x_3+x_4=65\\x_2=2x_1\\x_3=x_1+2\\x_4=0.25x_2$

c. $5x+20=415$

Step-by-step explanation:

a. In the account are 6 deposits of the paid that Tom gets each month and the initial $1240. Let $x$ be the paid Tom gets each month, then:

$6x+1240=12484$

Solving for $x$ :

$6x=12484-1240\\6x=11244\\x=\frac{11244}{6} \\x=1874\\$

b)Let $x_1$ be pounds contained in the first box, $x_2$ the pound in the second box, $x_3$ the pounds in the third box and $x_4$ the pound in the fourth box, then:

$x_1+x_2+x_3+x_4=65\\x_2=2x_1\\x_3=x_1+2\\x_4=0.25x_2$

Substitute the value of $x_2$ in the last equation:

$x_4=0.25(2x_1)\\x_4=0.5x_1$

Substitute all the equation in the first and solve for $x_1$ :

$x_1+(2x_1)+(x_1+2)+(0.5x_1)=65\\4.5x_1=65-2\\x_1=63/4.5=14$

Solving for x2,x3, and x4:

$x_2=2x_1=2*14=28\\x_3=x_1+2=14+2=16\\x_4=0.25x_2=0.25*28=7$

c) Simon is ordering 5 cans and 5 racquets, the total from the cans is 5(4)=$20. Let x be the cost of each racquet,

$5x+20=415$

Solving for x:

$5x=415-20\\x=395/5=79$

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3 years ago

What is the slope that passes through (-9,-8) and (-15,-16)

guapka [62]

Answer:

Slope = $\frac{4}{3}$

Step-by-step explanation:

(-9, -8) & (-15 , -16)

Slope = $\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

$= \frac{-16-[-8]}{-15-[-9]}\\\\= \frac{-16+8}{-15+9}\\\\= \frac{-8}{-6}\\\\= \frac{4}{3}$

5 0

3 years ago