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alex41 [277]
4 years ago
15

Solve for x. Please help quick!

Mathematics
1 answer:
dexar [7]4 years ago
4 0
\dfrac{5}{2} =  \dfrac{x}{ \frac{1}{7} }

Cross Multiply:
2x = 5 \times \dfrac{1}{7}

Evaluate right side:
2x =  \dfrac{5}{7}

Divide by 2 on both sides:
x =  \dfrac{5}{7} \div 2

Change the divide fractions to multiplication fraction:
x =  \dfrac{5}{7} \times  \dfrac{1}{2}

Combine into single fraction:
x =  \dfrac{5}{14}
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Find the value of x
gayaneshka [121]

Answer:

42°

Step-by-step explanation:

Since all the angles in the figure add up to 180°...

180 - 54 = 126

3x = 126°

x = 126 ÷ 3 = 42

4 0
3 years ago
What is 45,231 written in expanded form? 2 x 10,000 + 1 x 1,000 + 3 x 100 + 5 x 10 + 4 2 x 10,000 + 3 x 1,000 + 1 x 100 + 4 x 10
adoni [48]

Answer:

45231 = 4 \times 10000 + 5\times 1000 +2 \times 100 + 3\times 10 +1 \times 1

Step-by-step explanation:

Given the number:

45,231

We have To write the given number in the expanded form.

Solution:

First of all, let us write the different digits of the number:

Unit's digit = 1

Ten's digit = 3

Hundred's digit = 2

Thousand's digit = 5

Ten thousand's digit = 4

Unit's digit has to be multiplied with 1.

Ten's digit has to be multiplied with 10.

Hundred's digit has to be multiplied with 100.

Thousand's digit has to be multiplied with 1000.

Ten Thousand's digit has to be multiplied with 10000.

And then they have to be added so that the number gets formed.

45231 = 4 \times 10000 + 5\times 1000 +2 \times 100 + 3\times 10 +1 \times 1

3 0
3 years ago
A tree is 3,212 years old how can you express this age in scientific notation with the lowest level of precision
AfilCa [17]
3x10^3 I believe that’s the answer
8 0
3 years ago
Read 2 more answers
HELP PLEASE Will give brainliest if it helps.
AnnyKZ [126]

Answer:

2x+23

Step-by-step explanation:

The perimeter of a triangle is calculated by adding the sum of all sides.

Therefore, in the given problem, the perimeter will be:

Perimeter = 21-x + 2x-3 + x+5

= 2x+23

6 0
3 years ago
P=3h+3u solve for h<br> ...?
horrorfan [7]

p=3h + 3u  subtract 3u from both sides

p-3u=3h   now divide both sides by 3

h = p/3 - u

5 0
4 years ago
Read 2 more answers
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