All categories

2 years ago

Solve using substitution

Mathematics

2 answers:

TEA [102]2 years ago

6 0

Answer:

x = 4

y = -4

(4, -4)

Step-by-step explanation:

-7x - y = -24

y = -3x + 8

-7x - (-3x + 8) = -24

-7x + 3x - 8 = -24

-4x = -16x

x = 4

To solve for y.

y = -3(4) + 8

y = -12 + 8

y = -4

insens350 [35]2 years ago

6 0

Answer:

x= 8/5

y= 28 4/5

Step-by-step explanation:

You might be interested in

the seventh grade class is raising money to have a class trip at the end of the year they began the year with $1500 now they hav

Novay_Z [31]

Answer:

10%

Step-by-step explanation:

(1650 - 1500) /1500 = 10%

5 0

3 years ago

Which graph best describes this?

NemiM [27]

A, Is the answer according to my calculations.

8 0

3 years ago

Read 2 more answers

Jerry was comparing the points the bulls socered for different games he recorded 85,85, 86,77, 93 determine the mean median mode

maks197457 [2]

Answers:
Mean - 85.2
Median - 85
Mode - 85

Explanation:
Mean - 77+85+85+86+93=426/5 (the amount of data points given) = 85.2

Median - Organize the data points from least to greatest and eliminate the outermost numbers two at a time (one from both side) until you’re left with one.

Mode - The number that appears the most often in a given data set

3 0

3 years ago

Kindly solve this question 6 too !!

Shkiper50 [21]

Answer:

$x=1$

Step-by-step explanation:

$~~~~~x = \dfrac{1}{2 - \dfrac 1{2-\dfrac{1}{2-x}}}\\\\\\\implies x = \dfrac{1}{2 - \dfrac 1{\dfrac{4-2x-1}{2-x}}}\\\\\\\implies x= \dfrac{1}{2 - \dfrac{2-x}{3-2x}}\\\\\\\implies x = \dfrac{1}{\dfrac{6-4x-2+x}{3-2x}}\\\\\\\implies x = \dfrac{3-2x}{4-3x}\\\\\\\implies 4x -3x^2 = 3-2x\\\\\\\implies 3x^2 -4x +3-2x = 0\\\\\\\implies 3x^2 -6x +3 = 0\\\\\\\implies 3(x^2 -2x +1) =0\\\\\\\implies x^2 -2x +1 = 0\\\\\\\implies (x-1)^2 = 0\\\\\\\implies x -1 = 0\\\\\\\implies x = 1$

7 0

2 years ago

In 2013 Traci joined a swim club. The fees were £600 per year in 2013. Each year the fees increase by 6%. Calculate, to nearest

balandron [24]

Answer:

715 pounds

Step-by-step explanation:

FV = solve

PV = 600

I% = 6

K = 1, N = 3 (2013 - 2016 = 3 years)

Plug it in:

FV = 600 x [ 1 + (6/100 x 1)]³

= 600 x ( 1 + 0.06)³

= 600 x (1.06)³

FV = 714.61, 715 to the nearest dollar.

Therefore, the fee in 2016 is 715 pounds.

6 0

3 years ago