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artcher [175]
3 years ago
10

-3x + y = -24 y = 7x + 22

Mathematics
2 answers:
77julia77 [94]3 years ago
5 0

Answer:

x = -11.5;. y = -58.5

Step-by-step explanation:

-3x+y=-24

y=7x+22

-3x+(7x+22)=-24

-3x+7x+22=-24

4x=-24-22

4x = -46

x = - 11.5

y= 7 * (-11.5) + 22

y = -58.5

levacccp [35]3 years ago
3 0

Answer:

first one: 8

second one: 3

Step-by-step explanation:

-3x + y = -24 |÷(-3x)

y = 8

y = 7x + 22 |-y

(y would be 1; the 7x moves to the other side.) meams:

7x = 21 |÷7

x = 3

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Hal is asked to write an exponential function to represent the value of a $10,000 investment decreasing at 2% annually. What
jek_recluse [69]

Answer:

0.98

Step-by-step explanation:

The investment starts at $10,000.

$10,000 is 100% of the investment.

In the first year, it loses 2% of its value. That means that after 1 year, the value of 100% of $10,000 is decreased by 2% of $10,000.

100% - 2% = 98%

After the first year, the investment is worth 98% of the original value.

98% as a decimal is 0.98

Answer: 0.98

4 0
3 years ago
Read 2 more answers
What is the value of k that makes each equation true. For example, 5(ky-6)=15y-30
motikmotik

Answer:

k = 3

Step-by-step explanation:

5(ky-6)=15y-30

Factor out a 5 from the right side

5(ky-6)=5(3y-6)

Divide each side by 5

ky -6 = 3y -6

Add 6 to each side

ky = 3y

divide by y

k = 3

4 0
3 years ago
Factor. 21x^2 -32x+12
baherus [9]
Through trial and error:
(7x-6)(3x-2)

Usually it works best to test out a number of possibilities :)
3 0
3 years ago
Help plz quick appreciated
Soloha48 [4]
Question 3:
If the diver is being pulled up at 25 feet every minute, in 10 minutes they would have been pulled up 10 times that
10*25=250
The diver is now 200 feet below, but 10 minutes ago they would have been 250 feet deeper so:
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450 feet
6 0
3 years ago
A graph Includes the ordered pair (2,4). Write two different rules that would be possible for this graph. Explain how you found
Vanyuwa [196]
We know that
An ordered pair is used to locate a point on a coordinate grid.
The first number in an ordered pair is the x-coordinate, and the second number in an ordered pair is the y-coordinate.

In this problem, the ordered pair is
(2,4)
so
the x-coordinate is equal to 2
the y-coordinate is equal to 4

therefore

Rule N 1
The y-value is 2 times the x-value

Rule N 2
The y-value is 2 greater than the x-value     

Both are possible because their solutions include the ordered pair listed          
4 0
3 years ago
Read 2 more answers
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