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Lena [83]
4 years ago
9

What is the value of the equation

Mathematics
2 answers:
sergiy2304 [10]4 years ago
6 0
D=3
→-2(3-8)=-2×-5=10
olga nikolaevna [1]4 years ago
5 0
Solve the equation (d + 12 = 15) for d, and then substitute the value of D into the expression ( -2(d+8) ) and simplify in order to find your answer.

1) Equation. Use algebraic properties to isolate d on one side.
 
       d + 12 = 15
d + 12 - 12 = 15 - 12
               d = 3

2) Expression. Substitute 3 into D and simplify.

-2(d - 8)
-2(3 - 8)
-2(-5)
10

Therefore your answer is 10.
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How many solutions are there to the following system of equations?
viva [34]
If you would like to know how many solutions are there to the following system of equations, you can calculate this using the following steps:

2x + 5y = -11         /*(-5)
10x + 25y = -55
_______________
-10x - 25y = 55
<span>10x + 25y = -55
</span>_______________
0 = 0

The correct result would be D. Infinitely many.
3 0
3 years ago
-2(-6x+3y-1)...do NOT include spaces
ohaa [14]
(Simplified)

(First, Distribute)

12x-6y+2

(If you want it in standard form, subtract 2)

12x-6y=-2
3 0
4 years ago
I'm stuck on a math question. "A submarine is descending to examine the seafloor 2100 feet below the surface. It takes the subma
vodka [1.7K]

Answer:

-1,050

Step-by-step explanation: This is quite simple first we know that 2,100 is negative(-2,100) because it is descending/going down. So now we know that we can divide -2,100 by 2 which sums up to 1,050. But we are going to have to add a negative sign due to the fact that if the two integers you are dividing are opposite signs it would be negative. So if you add a negative sign to 1,050 it would be -1,050. Just to keep in mind that opposites make negative when dividing I will put the integer rules below.

Download pdf
3 0
3 years ago
Read 2 more answers
5 x (8 x 10 with the power of 4)
ella [17]
First you need to solve the stuff in the parenthesis.
8 x 10^4

10^4 = 10,000

8 x 10,000 = 80,000

80,000 x 5 = 400,000

The answer is 400,000
8 0
3 years ago
Simplify the expression.<br><br> 9m−7m+2m
BaLLatris [955]

Answer:

4m

Step-by-step explanation:

First subtract:

9m-7m=2m

Then add:

2m+2m= 4m

Hope this helps!

Pls mark brainliest if correct:)

6 0
3 years ago
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