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Afina-wow [57]
3 years ago
10

WILL MARK BRAINLIEST !!!

Mathematics
1 answer:
Ghella [55]3 years ago
8 0

In the given point(-4,b) -4 is the x value.

Locate -4 on the graph and find the y value where the line is located. The y value would be b.

B = 1

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7/2x+1/2x = 18+ 9/2x
chubhunter [2.5K]

Answer:

x=-36

Step-by-step explanation:

Add the 7/2x +1/2x to be 8/2x which means that it'll be 4x=18=9/2

then subtract 9/2x on both sides so itll be

4x=18+\frac{9}{2} x

-9/2x       -9/2x

-\frac{1}{2} x=18   because if you do 8/2-9/2 it's -1/2

then multiply the reciprocal to both sides so

(\frac{2}{-1})(-\frac{1}{2}x)=(\frac{2}{-1})(18)

which then cancels out -1/2 and makes it

x=-36

4 0
4 years ago
Jason's box holds 4 kilograms of toys and 18 kilograms of books. What is the total mass of the toys and books.
Alborosie

18 times 4 equals 32 so the answer is 32

8 0
3 years ago
Read 2 more answers
Alex is x years old. June is 7 years older than Alex. In 5 years, their total combined age will be 31 years.
shepuryov [24]
Let Alex's age is x and June's age is y y - x = 7 .........(1)
(x+5) + (y+5) =31 
x + y = 21 .........(2) 
by adding 1 and 2 
2y = 28 
y = 14 
x = 7

8 0
3 years ago
Read 2 more answers
Express 0.00078456 in scientific notation
Annette [7]
7.8456 x 10^(-4)

this means you move the decimal place to the left 4 places to get the actual value
5 0
3 years ago
Read 2 more answers
25 points!!! Please help!!
nydimaria [60]

Answer:

a) y= 8x+90 b) 154 pounds

Step-by-step explanation:

a) 90 will be the initial value (b) and 8 will be the slope (m)

this gives the linear function :

y = 8x + 90

b) to find his weight after 8 weeks plug in x=8

y= 64+90

y=154

154 pounds

5 0
3 years ago
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