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Lady bird [3.3K]
3 years ago
10

4.2x-1.4y=2.1 Solve for y

Mathematics
1 answer:
givi [52]3 years ago
7 0

Answer: y = -1.5+3x

Step-by-step explanation:

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Plz Help 30 points:
Inessa [10]

Answer:

a = 2(b) + 4.

Step-by-step explanation:

Part A: $11 + a = b. A= the extra money he got for walking the dog. B= the total money for walking the dogs.

Part B: a = 2(b) + 4. I did + 4 because it says “Larry was able to walk 4 more than twice as many dogs as his friend Kyle”. This equation would work because a = Larry and b = Kyle, so Larry has 2 times the amount as Kyle plus the 4.

I hope this helps <3

4 0
3 years ago
Read 2 more answers
I'm really not sure how to go about solving this algebraic equation, please help! .513 = (2x)^2 / (.05-x)
LiRa [457]
Let's set it up like this:
0.513=\frac{\left(2x\right)^2}{\left(0.05-x\right)}
Multiply both sides by 0.05-x
0.513\left(0.05-x\right)=\frac{\left(2x\right)^2}{0.05-x}\left(0.05-x\right)
0.513\left(0.05-x\right)=4x^2
We are then going to use the distributive property. Since we also know that the opposite of an number that is squared is the square root, we can also apply that. We would be left with something like this:
x=-\frac{0.513+\sqrt{0.673569}}{8},\:x=\frac{\sqrt{0.673569}-0.513}{8}
The variable x can be both positive or negative.
We have found successfully our answer.

Let me know if you have any questions regarding this problem!
Thanks!
-TetraFish<span />
4 0
3 years ago
Can someone please help me with this?!??!??!!???
Juli2301 [7.4K]

Answer:

2x²

Step-by-step explanation:

twice (2) the square (²) of a number (x)

hope that helps! have a wonderful day

4 0
3 years ago
Mountain climbers climb 15,840 feet on her way to the summit of a mountain how many miles did she climb
lutik1710 [3]

Answer:

they climbed 3 miles

Step-by-step explanation:

6 0
4 years ago
Find the area of a triangle with the given description. (Round your answer to one decimal place.)
Allushta [10]

9514 1404 393

Answer:

  67.0 square units

Step-by-step explanation:

The formula for the area is ...

  Area = 1/2ab·sin(C)

  Area = (1/2)(14)(28)sin(20°) ≈ 67.036 . . . . square units

The area of the triangle is about 67.0 square units.

6 0
3 years ago
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