2 years ago

Model each two-step operation by solving. -2x-3=5

Mathematics

2 answers:

Dafna1 [17]2 years ago

8 0

Answer:

x=-4

Step-by-step explanation:

You have to do all this math to isolate the variable, so, first,

You have to use the opposite sign of negative 3, which is positive 3, and add on both sides!

Then, you isolate the variable by dividing -2 on both sides, which is...

-4!

Alexxx [7]2 years ago

3 0

The answer is gonna be -4

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5×67= a. (67×10)÷2 b. (67x2)+(67×2) c. (6 ×7)×5 d.(5×6)+(5×7)

lbvjy [14]

Answer:

a).

= (67×10)÷2

= 670 ÷ 2

= 335

Explanation:

a).

= (67×10)÷2

= 670 ÷ 2

= 335

So, 5×67 = (67×10)÷2

=> 335 = 335

b).

= (67x2)+(67×2)

= 134 × 134

= 268

So, 5×67 ≠ (67x2)+(67×2)

=> 268 ≠ 335

c).

= (6 ×7)×5

= 42 × 5

= 210

So, 5×67 ≠ (6×7)×5

=> 210 ≠ 335

d).

= (5×6)+(5×7)

= 30 + 35

= 65

So, 5×67 ≠ (5×6)+(5×7)

=> 65 ≠ 335

Hence, (a) is the correct answer.

4 0

2 years ago

The radius of a circle measures 12 centimeters what is the area

Andrej [43]

Answer:

$144\pi$

Step-by-step explanation:

$\pi(r^{2} )$

$\pi(12^{2} )$

$144\pi$

7 0

1 year ago

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mars1129 [50]

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Step-by-step explanation:

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