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ElenaW [278]
3 years ago
13

Is ( 2,7) a solution of 2y = 3x + 8

Mathematics
1 answer:
solmaris [256]3 years ago
5 0

Answer:

Yes

Step-by-step explanation:

2(7) = 3(2) + 8

14 = 6+8

14 = 14

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Another One I need help withhhh sorrry
Effectus [21]

Answer:

y = 2x+3

Step-by-step explanation:

Sorry I'm probably too late since Quizziz doesn't wait unless you have the freeze timer thing.

y = mx+b

b is the y intercept. The y intercept (when x=0) is given in the table.

Now plug a coordinate in to solve for m.

My coordinates: (1,5)

5 = m + 3

Solve.

2 = m

m = 2

Note: never plug in the y intercept when looking for m.

You can also find the slope by (subtracting the y value of one coordinate from another y value of another coordinate)/(subtracting x value from the first y coordinate above from the x value from the second coordinate).

In this case, it'd be

m = (7-5)/(2-1)

m = 2/1

m = 2

6 0
3 years ago
Katie is twice as old as her sister Mara. The sum of their ages is 24. Find their ages.
Alenkasestr [34]
So k=katie's' age
m=mara's age

k is 2 times as old as m
k=2m

sum is 24
add means sum
k+m=24

so we have
k+m=24 and
k=2m
subsitute
2m+m=24
add
3m=24
divide both sides by 3
m=8
subsitute again
k=2m
k=2(8)
k=16

katie=16
mara=8
4 0
3 years ago
HELP, EXTRA POINTS AND BRAINIEST UMM DONT GUESS AND "NO NO NOOO LINKS" ty
3241004551 [841]

Answer:

236.3 feet squared.

Step-by-step explanation:

Base Surface Area =  8 squared

=  64 feet squared

Lateral Surface Area =  

2×8× √  

( 8 )2 + 102

2

=  172.3 feet sqaured

Total Surface Area = 236.3 feet squared

Please brainliest! I worked so hard!

7 0
3 years ago
An animal shelter spends $3.50 per day to care for each bird and $8.50 per day to care for each cat. Jaxson noticed that the she
ANEK [815]
X+y=24
3.5x+8.5y=114

X=18
18 birds
3 0
3 years ago
Divide the fraction and then simplify to its lowest form.
Andre45 [30]

Answer:

2/5

Step-by-step explanation:

3/10÷3/4

3/10×4/3

4/10

2/5

3 0
3 years ago
Read 2 more answers
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