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Alla [95]
3 years ago
10

A hardware store sells light bulbs in different quantities. the graph shows the cost of various quantities. according to the gra

ph, what is the cost of a single lightbulb?

Mathematics
1 answer:
skelet666 [1.2K]3 years ago
3 0

Looking at the two black dots

5 bulbs cost $9

Divide total cost by number of bulbs bought:

9 / 5 = $1.80 per bulb.

10 bulbs cost $18

Divide total cost by number of bulbs bought:

18 / 10 = $1.80 per bulb

The cost for one bulb is $1.80

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50 BIG POINTS! Help me on math please!  @ Apologiabiology, @ Bookishfairy73
nekit [7.7K]
Rate of change is also knkown as slope which is found by
\frac{y2-y1}{x2-x1}=slope if you know 2 points/ordered pairs
aos, if x incheases while y decreases then slope is negative
when x increases while y increases then slpe if positive
also, if you can convert to y=mx+b, m=slope
another thing if you have ax+by=c then slope=-a/b

so first one
2x-5y=15
a=2
b=-5
-2/-5=2/5
slope=2/5
positive

next
y=-4x
-4 =slope=negative


x increases while y decreases
negative

x increases while y decreases
negative


so
Positive
Negative
Negative
Negative





A. 6x-3y=12
sloope=-6/-3=2

B. y=5x+b
slope=5

C. (8-2)/(3-1)=6/2=3
sloope=3

D. goes up 4 units and goes right 1 unit, 4/1=4
sloope=4


5 is greates
B is the answer









A. (6-3)/(4-3)=3/1=3
slope=3

B. y=4+6x
slope=6


C.12x+6y=18
slope=-12/6=-2

D. goes down 5 units as it goest 1 uniit to right aka -5./1
slope=-5


greatest is 6
B is answer











the starting value I would guess si when x=1 what is the greats y value

look at each
first one
A. x=1 and =-3

B.y=3x-8
y=3(1)-8
y=3-8
y=-5

C. 8x+4y=16
8(1)+4y=16
8+4y=16
4y=8
y=2

D. at 1 unit to right it is 1 nit up so y=1


greatest is  2 or C





so just subsitute 1 for x since x represents how many teaspoons
y=16(1)560
y=16+560
y=576 caloris for 1 sugar teaspoon

for honey, just read off the graph
for when x=1
y=504

so calores of sugar=576
calories in honey=504






ANSWERS

Postive
Negative
Negative
Negative

B

B

C

sugar=576
honey=504
4 0
3 years ago
Read 2 more answers
Which of the following equations is perpendicular to the line y = 2x + 8?
EastWind [94]

ya I want to go get back to the school and I will get back to school today I don’t have

3 0
3 years ago
6
Arte-miy333 [17]
The answer might be B
7 0
3 years ago
Of the 28 students in class, about 65% are wearing sneakers. How many students are not wearing sneakers? Round to the nearest wh
BigorU [14]

Answer:

10

Step-by-step explanation:

Based on the given conditions, formulate: \(28 \times ( 1 - 65\% )\)

Calculate the sum or difference:\(28 \times 0.35\)

Calculate the product or quotient:\(9.8\)

Find the closest integer: 10

Answer: 10

7 0
2 years ago
How would you shift the function
Otrada [13]

I believe that the answer would be:

g(x) = 12x + 17  

5 0
3 years ago
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