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gizmo_the_mogwai [7]
3 years ago
13

How do solve this problem? 1 2/5x =7

Mathematics
1 answer:
elena55 [62]3 years ago
5 0

Answer:

if you are solving for x then the answer is 5

Step-by-step explanation:

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A number consists of two digits whose sum is 12. If 16 is added to the number, then one of the digits is four times the value of
NeX [460]

Answer: The number is 12.

Step-by-step explanation:

Since we have given that

Sum of two digits = 12

Let the one's digit be 'x'

Let the ten's digit be '12-x'

So, Original number would be

x+10(12-x)\\\\=x+120-10x\\\\=-9x+120

If 16 is added to the number, then one of the digit is four times the value of the other.

According to question, we get that

-9x+120+16\\\\=-9x+136

so, the one's digit be 'x'.

Let the ten's digit be '4x'.

so, New number would be

10x+4x=14x

According to question, it becomes,

14x=-9x+136\\\\14x+9x=136\\\\23x=136\\\\x=\dfrac{136}{23}=12

So, the number would be

-9x+120=-9\times 12+120=-108+120=12

Hence, the number is 12.

7 0
4 years ago
Hilda runs 2/3 of a mile in a half-hour. If she continues to run at a constant rate, how many miles will she run in 3 hours?
Naddika [18.5K]
2/3 a mile in half an hour
3 hours=6 x 2/3
6/1 x 2/3 = 12/3
12/3 =4 miles in 3 hours
5 0
4 years ago
Read 2 more answers
You have 6 reindeer, Rudy, Jebediab, Ezekiel, Lancer, Gloopin, and Balthazar, and you want to have 5 fly your sleigh. You always
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You can arrange your reindeer 30 different ways.
5 0
3 years ago
Heron wants to buy a video game. The price is regularly priced at 55 dollars. The store has a discount of 20% off and a sales ta
seropon [69]

The amount paid by Heron for the video game  is $46.64.

Step-by-step explanation:

Here, the marked price of the video game  = $55

The discount percentage on the video game  = 20%

Calculating 20% of the $55, we get:

\frac{20}{100}  \times 55  = 11

So, the discount offered on the video game  = $11

Selling Price  = Marked Price  - Discount

                        =$55 - $11 = $44

Now,  the tax percentage on the video game  = 6%

Calculating 6% of the $44, we get:

\frac{6}{100}  \times 44  =2.64

So, the tax  on the video game  = $2.64

New Selling Price  = Selling Price  +  Tax

                        =$44 + $2.64  = $46.64

So, the amount paid by Heron for the video game  is $46.64.

3 0
3 years ago
Which expression is equivalent to the expression below?<br> 8(2r)+9r<br> 8(2r)+9r
maria [59]
Hopes this helps but is this a multiple choices questions or not:

Answer: 25r
5 0
3 years ago
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