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n200080 [17]
2 years ago
13

You need to solve a system of equations. You decide to use the elimination

Mathematics
1 answer:
denis-greek [22]2 years ago
4 0

Answer:

it is c it is c it is c it is c

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5×12÷[-12÷{15+(4-13)}]​
Elina [12.6K]

Answer:

=5×12÷[-12÷{15+(-9)}]

=5×12÷[-12÷6]

=5×12÷(-2)

=-30

Step-by-step explanation:

8 0
2 years ago
Please help and explain step by step​
Mila [183]

Answer:

92 cm

Step by step explanation:

first: you divide the rectangle into two right angled triangles using the diagonal

secondly:

you use pythagoras theorem to find the width of the rectangle

110²= 60²+ w²

w²= 110²- 60²

w²= 12100- 3600

w²= 8500

w= 92.195

w= 92 cm

6 0
3 years ago
Evaluate 8 - 4.7y - x <br> when y= -1 and x= 2.
Marat540 [252]
Substitute in the values for y and x into the equation.

so..

8 - 4.7(-1) - (2)   solve the equation 
8 + 4.7 -2 
12.7 - 2 
10.7 
4 0
3 years ago
Read 2 more answers
∠A and ∠B are supplementary, and ∠A and ∠C are supplementary. Which conclusion is valid? Select one: A. ∠B and ∠C are supplement
zysi [14]

Option D is the correct answer.

Answer:

D. ∠B and ∠C are congruent.

Step-by-step explanation:

Since, ∠A and ∠B are supplementary.

Therefore,

∠A + ∠B = 180°.....(1)

Since, ∠A and ∠C are supplementary.

Therefore,

∠A + ∠C = 180°.....(2)

From equations (1) & (2)

∠A + ∠B = ∠A + ∠C

=> ∠B = ∠C

Hence, ∠B and ∠C are congruent.

4 0
3 years ago
What is 60- 0.3 answer?
balu736 [363]
Your answer will be 59.7
3 0
2 years ago
Read 2 more answers
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