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11111nata11111 [884]
3 years ago
15

Melissa, Ravi, and Eric sent a total of 154 txt msg. Melissa sent 10 more msg than Eric. Ravi sent 4 times as many msg as Eric h

ow many messsges did they each send
Mathematics
1 answer:
romanna [79]3 years ago
8 0

Answer:

Eric=154 txt msg

Melissa=164 txt msg

Ravi=615 txt msg

I hope this helped :)

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Please Help Me Please​
Nataly_w [17]

Step-by-step explanation:

  1. dnnxncjch uxdhenxfxxmckc
  2. ddjjcdj
  3. DC Jd hmm dn
  4. jdfncj
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7 0
3 years ago
Solve the simultaneous equations. You must show all your working to find x and y. 1/2x -3y = 9 5x y + y = 28
Anastaziya [24]

<em>The right question is:</em>

\frac{1}{2}x - 3y = 9

5x + y = 28

Answer:

<em></em>x = 6<em> </em>

y = -2<em></em>

<em></em>

Step-by-step explanation:

Given

\frac{1}{2}x - 3y = 9

5x + y = 28

Required

Solve for x and y

Make y the subject of formula in the second equation

y = 28 - 5x

Substitute y = 28 - 5x in the first equation

\frac{1}{2}x - 3(28 - 5x) = 9

Open the bracket

\frac{1}{2}x - 3*28 - 3*- 5x = 9

\frac{1}{2}x - 84 + 15x = 9

Collect Like Terms

\frac{1}{2}x  + 15x = 9+ 84

\frac{x}{2}  + 15x = 9+ 84

\frac{x+30x}{2} = 93

\frac{31x}{2} = 93

Multiply both sides by 2

2 * \frac{31x}{2} = 93 * 2

31x = 186

Divide both sides by 31

\frac{31x}{31} = \frac{186}{31}

x = \frac{186}{31}

x = 6

Recall that y = 28 - 5x

So;

y = 28 - 5 * 6

y = 28 - 30

y = -2

Hence;

<em></em>x = 6<em> and </em>y = -2<em></em>

8 0
3 years ago
Read 2 more answers
Given f(x) = 2x2 - 3, what is the value of f(x + 3)?
creativ13 [48]

Answer:

Answer A is correct.

Step-by-step explanation:

Please note the difference beteen f(x+3) and f(3).

So f(x + 3) means, where you see x in the equation, you substitute x+3. (This is a recursive entry).

f(x)= 2x² - 3

f(x)= -3 + 2x²

f(x)= -3 + 2* (x+3)²

f(x)= -3 + 2* (x+3) * (x+3)

f(x)= -3 + 2* (x² + 3x + 3x + 9)

f(x)= -3 + 2* (x² + 6x + 9)

f(x)= -3 + 2x² + 12x + 18

f(x)= 2x² + 12x + 18 -3

f(x)= 2x² + 12x + 15

So answer A is the correct answer

8 0
3 years ago
Ixl help ASAP PLZ HELP
frutty [35]

Answer:

(9,-6)

(9,2)

(8,2)

(8,-6)

Step-by-step explanation:

To reflect something over the y axis all you have to do is change the sign of the X coordinate

which means that

(-9,-6) is (9,-6)

The other answers are

(9,2)

(8,2)

(8,-6)

4 0
3 years ago
Pls answer 1. 2. 3.
Arisa [49]
1.You can see through the comparison to a mountain, that the grandpa is y’all and always the ‘looming’ (hovering) over the speaker you can see that the speaker does not speak much around his grandpa, as he is “silent as a stone”

2.These details show that the speaker is impressed by his grandpa and looks up to him the way a stone would look up to a mountain-it shows that he hopes one day he will grow to be like his grandpa

3.the theme of this poem is shown through the way the speaker looks at his grandpa and the shed. The shed needs more than paint because it’s so old, which relates to his grandpa and the theme of growing older
8 0
3 years ago
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