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Hunter-Best [27]
3 years ago
10

Help plss???????????????

Mathematics
1 answer:
Arturiano [62]3 years ago
6 0

Answer:

the answer is 2

Step-by-step explanation:

(5×4-4×4)=2

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2a - 3b = -11<br> a + 3b = 8
dlinn [17]

Answer:

b = 3 and a = -1

Step-by-step explanation:

You have your given equation:

2a - 3b = -11

a + 3b = 8

You need to find what a and b is.

To find b:

2a - 3b = -11

-2a - 6b = -16

I multiplied a + 3b = 8 by -2. When you multiply a number you have to multiply all of them. You have to choose a number that would cancel out all of a.

So now your equation would look like this when you solve for b:

2a - 3b = -11

-2a - 6b = -16

-------------------

a - 9 = -27 then you divide -9 to -27 which is 3 so b = 3.

To find a:

2a - 3b = -11

a + 3b = 8

I multiplied a + 3b = 8 by -1 and 2a - 3b = -11 by -1 as well.

Your equation will look like this when you solve for a:

-2a + 3b = 11

-1a - 3b = -8

------------------

-3a = 3 then divide -3 to 3 which is -1 so a = -1.

Check to see if you have the correct answer by plugging in the number you got for a and b into the equation and solve.

1. 2(-1) -3(3) = -11

 -2 - 9 = -11

2. -1 + 3(3) = 8

   -1 + 9 = 8

8 0
3 years ago
Use each table to find the requested ratio.
RoseWind [281]

Answer:

Step-by-step explanation:

1:4

1:2

5:1

7 0
2 years ago
Read 2 more answers
Nishi invests £3200 at 6% interest per year. Work out how much she will have altogether after: 2 years ​
artcher [175]

SI = P×R×T/100

(3200×6×2)/100

= 384

Now 3200 + 384

= Euro 3584

4 0
2 years ago
Solve for x, given the equation square root of x + 9 -4 = 1
saveliy_v [14]

Answer:

x = -4

Step-by-step explanation:

7 0
3 years ago
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Use the interactive number line to find each sum to complete the table
Likurg_2 [28]

-1 - 2 = -3

R = -3

-4 + 1 = -3

S = -3

-6 - 3 = -9

T = -9

6 0
3 years ago
Read 2 more answers
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