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raketka [301]
3 years ago
7

Can someone do the whole thing

Mathematics
1 answer:
olga_2 [115]3 years ago
8 0

Answer:

1

Step-by-step explanation:

y=mx+b,  equation for slope-intercept line

we can work out the equation based on given two points (1,1) and (7,4)

  • m=(y2-y1)/(x2-x1)= (4-1)/(7-1)= 3/6= 1/2

y=1/2x+b

For (1,1)

  • 1= 1/2+b ⇒ b= 1/2

For (7,4)

  • 4=7*1/2+b ⇒ b= 1/2

So we get

  • y= 1/2x+1/2

The answer is 1 for question mark

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almond37 [142]

Answer:

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Step-by-step explanation:

7 0
2 years ago
Evaluate: 2x + 5x - 11 = -46
TiliK225 [7]

Answer:

x=-5

Step-by-step explanation:

Combine like terms: 7x-11=-46

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4 0
2 years ago
Sandra is selling cookie dough for a fundraiser. She has a minimum fundraising goal of $150. If Sandra's mom gave her a $45 cont
grin007 [14]

Answer:

<h2>At least 21 cookie</h2>

Step-by-step explanation:

Firstly she needed to raise $150

and each cookie $5

let the number of cookie be x

let the expression for the fund raising be

150=5x

given that the mom gave her $45

then she need

150-45=5x

105=5x

x=105/5

x=21

Therefore she need to sell at least 21 cookie

         

6 0
3 years ago
Can someone please help
Leona [35]

Answer:

each hamburger costs $3.50

Step-by-step explanation:

he spent $13 in total and bought one hot dog for $2.50 and 3 hamburgers but we don't know the price of one hamburger so we could represent it by the equaton,

2.50 + 3h = 13 now solve for x

-2.50           2.50

3h = 10.50

h=3.50

check:

2.50+3(3.50)=13

2.50+10.50=13

13=13

4 0
3 years ago
In the diagram below, quadrilateral ABCD has vertices A(-5,1), B(6,-1),C(3,5), and D(-2,7). What are the coordinates of the midp
puteri [66]

Answer:

6

Step-by-step explanation:

5 0
3 years ago
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