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Serggg [28]
3 years ago
12

If you were to solve the following system by substitution, what would be the best variable to folve for and from what equation?

Mathematics
2 answers:
prisoha [69]3 years ago
5 0

Answer:

X in the first equation

Step-by-step explanation:

weeeeeb [17]3 years ago
3 0

Answer:

D

Step-by-step explanation:

It's easiest to divide everything by 3.

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A pound is about .45 kg. If I collected 3lbs of aluminum , how many kg. Did I collect ?
icang [17]

Answer:

You collected 1,395 kg.

Step-by-step explanation:

Since each pound would be 45 kg and you collected 31 pounds more then you would have to multiply 45 times 31.

3 0
2 years ago
Please help me with this
Irina18 [472]

The sum of 8m and 3 is 8m + 3

Answer is B. 8m + 3

8 0
3 years ago
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I’m not sure what the answer can I get some help
Ronch [10]

Answer:

B.) 9.25p + 8.9t\leq 100

Step-by-step explanation:

8 0
2 years ago
If 4x-1=X, Find 30x<br> a) 10 b) 40<br> C) 12 d)11<br><br> How do you solve this?
cestrela7 [59]

Answer:

(a)

Step-by-step explanation:

Given

4x - 1 = x ( subtract x from both sides )

3x - 1 = 0 ( add 1 to both sides )

3x = 1 ( multiply both sides by 10 )

30x = 10 → (a)

3 0
2 years ago
the mantle layer of earth begins about 70 kilometers underneath the surface. The layer called the outer core begins about 2970 k
gavmur [86]
Given:
<span>mantle layer of earth begins about 70 kilometers underneath the surface
</span><span>outer core begins about 2970 kilometers underneath the surface

Since we need to find the position of each layer </span><span>relative to the surface, the surface will serve as the point of origin or 0. Below the surface infers a negative value. So, Mantle layer is -70 km from the surface while outer core is -2970 km under the surface.

Comparing -70 and -2970, -70 has a greater value than -2970. The nearer the number is to the origin or 0, the higher its value.

Comparing the absolute greater value of -70 and -2970, -2970 has a greater absolute value. This is because absolute value is the positive value of the number. Absolute value of -70 is 70 while absolute value of -2970 is 2970. Thus, -2970 has a greater absolute value. </span>
6 0
2 years ago
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