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tiny-mole [99]
3 years ago
7

At a pizza competition, Davonne at two more than twice as many slices as the runner-up. If davonne at 11 slices, then how many s

lices did the runner-up eat?
Mathematics
1 answer:
alexira [117]3 years ago
5 0
The runner up ate 4.5 slices 
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3x+y=5 , 2x-2y=22 solve the system of equations by the addition method
IgorLugansk [536]

<span><em />
3x+y=5</span>

<span /><span>2x-2y=22 ...............2(x-y)=22 ⇒ x-y=11</span><span><em /></span>

<span><em>3x+y=5</em></span>

<span /><span><em><u>x-y=11                   </u> </em>(+)</span>

<span />3x+x+y-y=11+5

<span>4x=16  /:4</span>

<span /><em>x=4</em>

x-y=11

4-y=11

-y=7 /*(-1)

<em>y=-7</em>


<span><em></em></span>

5 0
4 years ago
Read 2 more answers
Melissa bought 3 loaves of freshly baked bread at a specialty bread shop. She paid twice as much for the whole grain bread as fo
guapka [62]

The right answer is Option B and Option E.

Step-by-step explanation:

Given,

Price of french loaf =1f

Price of whole grain bread = 2f

Price of cinnamon rasin bread = 2f+2.50

Total amount spent = $11.25

According to given statement;

f+2f+(2f+2.50)=11.25

f+2f+2f+2.50=11.25

Subtracting 2.50 from both sides

5f+2.50-2.50=11.25-2.50\\5f=8.75

f+2f+(2f+2.50)=11.25 and 5f=8.75 describes the situation.

The right answer is Option B and Option E.

Keywords: linear expressions, addition

Learn more about linear expressions at:

  • brainly.com/question/4021035
  • brainly.com/question/4034547

#LearnwithBrainly

6 0
3 years ago
1. 7 + 5x = 3 - 2x and 7 + 7x = 3<br> Are they equivalent, if so what is X
oksano4ka [1.4K]

Answer: They are equivalent, and x = -4/7

Step-by-step explanation:

Fist we need to see what the answers to each of these equations are

7 + 5x = 3 - 2x

Subtract 7 on each side

5x = -4 - 2x

Add 2x

7x = -4

X = -4/7

Now the second one

7 + 7x = 3

Subtract 7

7x = -4

X = - 4/7

They are equal and x = -4/7

4 0
4 years ago
URGET PLEASE HELP
sweet-ann [11.9K]

Answer:

f(x)+ g(x) = -2x^{4} + 6x^{3} +8x^{2} -8x+3

Step-by-step explanation:

You just have to add the like terms separately,

5-7 in x^{4}

only 6 in x^{3}

10-2 inx^{2}

-8 in x

and 3 as the constant

3 0
3 years ago
PLEASE HELP! (1/4) - 50 POINTS -
Annette [7]

Answer:

  D)  0.35

Step-by-step explanation:

The table gives the area between z=0 and the given magnitude of z. That is, the area between z = 0 and z = -0.6 is 0.23, as found in the 0.6 column of the table. Similarly, the area between z = 0 and z = 0.3 is 0.12, as found in the 0.3 column of the table.

The area between z = -0.6 and z = +0.3 is the sum of these areas:

  p(-.6<z<.3) = 0.23 +0.12 = 0.35

5 0
3 years ago
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