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stira [4]
4 years ago
12

May someone please help me in this question?

Mathematics
1 answer:
IRINA_888 [86]4 years ago
5 0
To determine the answer for this, you need to divide the amount earned by hours worked to get how much she is paid per hour.
22.50/3 = 7.50
60.00/8 = 7.50
112.50/15 = 7.50
Your answer is A.) A = 7.50h, meaning $7.50 per hour.
I hope this helps!
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4x + 2y = -12 3x + y = -10 please help system by substitution.
padilas [110]

Answer:

(-4, 2)

Step-by-step explanation:

4x+2y=-12

3x+y=-10

Start by dividing the first equation by 2 to simplify it...

2x+y=-6

Then, subtract -2x from both sides to isolate y...

y=-2x-6

Substitute -2x-6 for y in the second equation...

3x-2x-6=-10

Combine like terms...

x-6=-10

Add 6 to both sides

x-6+6=-10+6

x=-4

Plug -4 in for x to solve for y:

3(-4)+y=-10

-12+y=-10

Add 12 to both sides

-12+12+y=-10+12

y=2

(x,y)=(-4,2)

3 0
3 years ago
Find the sum (6y – 2) + (5y + 5)
slavikrds [6]

Answer:

11 y + 3

Step-by-step explanation:

(6y-2) + (5y+5)

Add 6y and 5y

11y - 2 + 5

Add -2 and 5

11 y + 3

7 0
3 years ago
Read 2 more answers
-4x - 2y = -2
puteri [66]

Answer: -5x= -11

Step-by-step explanation:

6 0
3 years ago
Leah flips a coin and then she spins the spinner with 3 equal sections colored red green and blue what is the probility that the
VARVARA [1.3K]

Answer:

33%

Step-by-step explanation:

Prob(heads) = 1/2

Prob(either red or blue) = 2/3

So Prob( heads and red/blue) = 1/2 * 2/3

= 2/6

= 1/3   which is 33%.

8 0
3 years ago
Read 2 more answers
A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 236.8-cm and a standard dev
RSB [31]

Transform M to the standard normally distributed random variable Z via

Z=\dfrac{M-\mu_M}{\sigma_M}

where \mu_M and \sigma_M are the mean and standard deviation for M, respectively. Then

P(236.5

5 0
3 years ago
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