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vovangra [49]
2 years ago
10

Whats the x value of the solution to this system of equations x=2y-4 7x+5y=-66

Mathematics
2 answers:
Sav [38]2 years ago
8 0

Answer:

-19/7

Step-by-step explanation:

Likurg_2 [28]2 years ago
5 0

Answer:

x=2y−47x

Step 1: Add 47x to both sides.

x+47x=−47x+2y+47x

48x=2y

Step 2: Divide both sides by 48.

48x

48

=

2y

48

x=

1

24

y

Answer:

x=

1

24

y

Step-by-step explanation:

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The rule T 5, -0.5° Ro, 1800(x, ) is applied to FGH to
Yuki888 [10]

Answer:

Step-by-step explanation:

Given rule for the multiple translations is,

T_{5,-0.5}.R_{0.180^{\circ}}(x,y)

Apply the rule R_{0,180^{\circ}} first.

(x, y) → (-x, -y)

This rule illustrates a rotation of the triangle FGH by 180° about the origin,

Vertices of ΔFGH are,

F → (1, 1)

G → (4, 5)

H → (5, 1)

After rotation vertices of the image triangle are,

F' → (-1, -1)

G' → (-4, -5)

H' → (-5, -1)

Further apply the rule,

T_{5,-0.5}

(x, y) → (x + 5, y - 0.5)

By this rule of translation,

F'(-1, -1) → F"{(-1 + 5), (-1 - 0.5)}

            → F"(4, -1.5)

G'(-4, -5) → G"[(-4 + 5), (-5 - 0.5)]

              → G"(1, -5.5)

H'(-5, -1) → H"[(-5 + 5), (-1 -0.5)]

             → H"(0, -1.5)

8 0
2 years ago
i When 20 is added to a certain number and the sun is divided by 3, the result is 3 times the number, find the number.​
Bingel [31]

Answer:

let \: the \: number \: be \: x \\  \frac{20 + x}{3}  = 3x \\  \frac{3(20 + x)}{3}  = (3x)3 \\ 20 + x = 9x \\ 20 = 9x - x \\ 20 = 8x \\  \frac{20}{8}  =  \frac{8x}{8}   \\ x = 2.5

Step-by-step explanation:

Hope that this is helpful .

Have a great day.

3 0
2 years ago
10. MP Find the Error The rate of growth for a
Akimi4 [234]

Answer:

the error is how many days it will take for the plant to grow 3.6 centimeters they have 1.44 but the correct answer is 9 days.

Step-by-step explanation:

it will take the plant 9 days to grow 3.6 centimeters

4 0
2 years ago
Increase $32 in the ratio 2:5<br>decrease 54 litter in the ratio 5:1<br>​
Novay_Z [31]

Answer:

Step-by-step explanation:

32 = 2 : 5

32/7 = 4

2 x 4 : 4 x 5

8 : 20

8 0
2 years ago
A sprinkler system uses 800 gallons of water in 5 days. How many gallons will the system use in a week?
emmainna [20.7K]
Yes 1,120 gallons per week (7 days)
Just divide 800 by 5 and see that the sprinkler system uses 160 gallons a day. Multiply 160 by 7 for the amount used a week and you will find that the answer is 1,120 gallons of water.
6 0
3 years ago
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