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balandron [24]
3 years ago
10

0.4x-2.8 -------------- = 1.5 4 x= ?

Mathematics
2 answers:
Sedbober [7]3 years ago
4 0

Answer:

Step-by-step explanation:

0.4x - 2.8 = 1.5

Add 2.8 to both sides

0.4x - 2.8 +2.8 = 1.5 + 2.8

0.4x = 4.3

Divide both sides by 0.4

0.4x/0.4=4.3/0.4

x = 10.75

kondaur [170]3 years ago
3 0

Answer:

4.3

Step-by-step explanation:

what you wanna do is add the 1.5 and the -2.8 together, then devide it by 0.4 four, and thats what X equals.

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Simplify using the order of operations. (2 + 1) 3 ÷ 32 = 1 3 9 2
puteri [66]

Answer: I believe the answer is 0.1875. Must be a typo here, because...

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After parentheses are taken out. 3x3%32= No exponents, so multiply or divide, whatever comes first.

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5 0
3 years ago
If 3x - 2y = 9 , 27x³- 8y³= 1377 , prove that xy = 4 <br><br><br><br>plzz answer this question... ​
solniwko [45]

Step-by-step explanation:

Here we are given that , the Value of

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And we need to find the prove that ,

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We know a identity as ,

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On cubing both sides of the given equation,

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Simplify and then substitute ,

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8 0
3 years ago
Jake and Gloria are running on the track team. Gloria can run twice as many miles as
Tanzania [10]

Answer:

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Step-by-step explanation:

Use J to represent Jake's miles.

We know that Gloria's miles (G) is twice J, so G=2J

We also know that Jake and Gloria together ran 12 miles.

So we know, J+2J=12 or 3J=12   meaning J=4

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