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Anvisha [2.4K]
4 years ago
10

3x + 9y = -42 -3x + 2y = -2 The solution to the system is

Mathematics
1 answer:
AlladinOne [14]4 years ago
6 0

x=−2 and y=−4

If you need explanation Just ask!

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At time tequals​0, water begins to drip out of a pipe into an empty bucket. After 14 ​minutes, there are 7 inches of water in th
Vaselesa [24]

Answer:

w=0.5t

Step-by-step explanation:

Given:

'w' represents inches of water left after 't' minutes of time.

The dripping out of water is a linear function.

At time 't' equal to 0, the bucket was empty.

After 14 minutes, there are 7 inches of water in the bucket.

A linear function model is of the form: w=mt+b

Where, m\to\textrm{dripping rate of water}\\b\to\textrm{water level at t=0}

Now, at t=0,w=0(\textrm{As bucket was empty})

At t=14,w=7

Therefore, plugging these values in the above linear model and solving the system of linear equations. This gives,

0=m(0)+b\\0=0+b\\b=0\\\\7=14m+0\\m=\frac{7}{14}=0.5\ in/min

Therefore, the values of 'm' and 'b' are 0.5 and 0 respectively.

Thus, the linear model is given as:

w=0.5t

4 0
3 years ago
Can someone please help me<br> I really would appreciate it.
Yakvenalex [24]
The formula for a triangl is one-half base time height ( 1/2 bh).
So for this triangle, input the base and height.
1/2 (10 x10)
The solve
1/2 (100)
50
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8 0
3 years ago
Read 2 more answers
The sum of two numbers is 24. The second number is 4 more than the first number. Let a represent the first number
OverLord2011 [107]

Answer:

a=10, b=14

Step-by-step explanation:

a+b = 24

b=a+4

a+(a+4)=24

2a+4=24

2a=20

a=10

b=14

6 0
2 years ago
Fill in the blank. (5 + 2) × 10 = (5 × 10) + (2 × __ )
satela [25.4K]

Answer:

70=50+3.5=70 therefore the answer is 3.5

3 0
3 years ago
Solve each equation. Show or explain your method. DONT TAKE MY POINTS I WILL GIVE BAINLEST
son4ous [18]

#1

= 9

Let's solve your equation step-by-step.

8.88=4.44(x−7)

Step 1: Simplify both sides of the equation.

8.88=4.44(x−7)

8.88=(4.44)(x)+(4.44)(−7)(Distribute)

8.88=4.44x+−31.08

8.88=4.44x−31.08

Step 2: Flip the equation.

4.44x−31.08=8.88

Step 3: Add 31.08 to both sides.

4.44x−31.08+31.08=8.88+31.08

4.44x=39.96

Step 4: Divide both sides by 4.44.

#2

= y = -3

 

Step 1: Simplify both sides of the equation.  

Step 2: Subtract 2 from both sides.  

Step 3: Divide both sides by 5.

5 0
3 years ago
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