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cricket20 [7]
2 years ago
5

Kirsten's work is shown below:

Mathematics
1 answer:
iVinArrow [24]2 years ago
8 0
She needs to move the decimal point, not just add 0's

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Determine the value of a + b in the system of equations below. <br><br> 5a + 4b = 22<br> 7a-b= 11
dexar [7]

Answer:

We have a + b as;

2 + 3 = 5

Step-by-step explanation:

Here, we want go get the value of a and b

from the second equation, we can get an expression for b

We have this as;

7a - b = 11

Thus,

b = 7a - 11

Now, from here, we can substitute the value of b into the first equation

We have this as;

5a + 4(7a - 11) = 22

5a + 28a -44 = 22

33a = 22 + 44

33a = 66

a = 66/33

a = 2

Recall;

b = 7a - 11

substituting the value of a from above;

b = 7(2) - 11

b = 14 - 11

b = 3

6 0
2 years ago
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marishachu [46]

Answer:

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Step-by-step explanation:

The expression can be simplified to (x^2)^2. Using an exponent rule, you multiply the two exponents together to get 4. The answer is x^4

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2 years ago
The length of the base edge of a pyramid with a regular hexagon base is represented as x. The height of the pyramid is 3 times l
eduard

1.) 3x

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it takes three days for a snail to climb a wall. if a snail climds up the wall 2 in. in one day, then slids down 1 in. how tall
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Which equation does the graph represent?
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