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anastassius [24]
4 years ago
5

Solve −27=19−2x for x . First, identify the best first step in solving this equation. What choice is correct?

Mathematics
1 answer:
Nezavi [6.7K]4 years ago
7 0

Answer:

By subtracting -27 by 19 to balance the sides.

Step-by-step explanation:

-27= 19-2x

-27-19= -2x

-46= -2x

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300 to reserve + 85 fee = 385, plus 27 per person or (27b) which equals 2,653. 27b + 385= 2,653. solve the equation for b and the answer is 84
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3 years ago
(-4,6), (r,10) and m = -2. what is r?
olya-2409 [2.1K]

Answer:

-6

Step-by-step explanation:

The formula of slope Y2-Y1/X2-X1

so you actually use this formula equal to -2

10-6/X-(-4) = -2

3 0
3 years ago
A grain of sand weighs about 1 x 10 g.
gulaghasi [49]

Answer:

7.5\cdot 10^9 g

Step-by-step explanation:

In this problem, we are told that the mass of 1 grain of sand is:

m=1\cdot 10^1 g

The total mass of N grains of sand will be therefore

M=Nm

where

N is the number of grains of sand

M is the total mass

Here we have a number of grains of sand equal to

N=7.5\cdot 10^8

Therefore, the total mass of the grains of sand is:

M=(7.5\cdot 10^8)(1\cdot 10^1 g)=7.5\cdot 10^9 g

7 0
4 years ago
The area of a triangle is 12 square units. The base of the triangle is 4 units. What is the height of the triangle in units?
masya89 [10]

Answer:

6 =h

Step-by-step explanation:

The area of a triangle is given by

A = 1/2 bh

12 = 1/2 (4) h

12 =2h

Divide each side by 2

12/2 = 2h/2

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3 0
3 years ago
B(n)=-4-2(n-1) <br> find the12th term in the sequence
bixtya [17]

Answer:

The 12th term in the sequence is b(12)= -26

Step-by-step explanation:

For the 12th term, that means we need to find what the value of b is when n=12

To find b:

  • Substitute all 'n' with 12 (since its the 12th term)

                    b(n)= -4-2(n-1)

                    b(12)= -4-2(12-1)

  • Solve the equation in order of BEDMAS (aka PEDMAS)

                    b(12)= -4-2(11)

                            = -4- (2*11)

                            = -4-(22)

                            = -26

The  12th term in the sequence is b(12)= -26

4 0
3 years ago
Read 2 more answers
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