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Ber [7]
3 years ago
11

If 2x+5= 12 for some value of x, then what does 6x+20 equal???

Mathematics
2 answers:
ANEK [815]3 years ago
6 0
1. Solve for x in 2x + 5 = 12
2x + 5 = 12       Subtract 5 from both sides.
2x = 7               Divide 2 from both sides.
x = 3.5

2. Substitute 3.5 in for x in 6x + 20
6(3.5) + 20
21 + 20
41

Your answer is 41.


Morgarella [4.7K]3 years ago
5 0
Here is the answer to the question

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3 years ago
The area of Gateway National Recreation is about twenty-six thousand, six hundred and sixty-three hundredths. Which shows this n
Delicious77 [7]

Answer:

B. 26,606.63

Step-by-step explanation:

The area of Gateway National Recreation Area is about twenty-six thousand, six hundred six and sixty-three hundredths. Which shows this number in standard form? A. 26,606.3 B. 26,606.63

C. 26,660.63 D. 26,666.3

Solution

Break down and writing in numerals of twenty-six thousand, six hundred six and sixty-three hundredths.

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Six hundred six = 606

Sixty - three hundredth = 0.63

Adding

26,000 + 606 + 0.63

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26,606.63

The correct answer is B

5 0
3 years ago
On a particular Saturday, 60% of the visitors to an art museum were students. If 144 students visited the museum, how many total
pentagon [3]
Hello! To solve this question, we can write and solve a proportion. Because we are looking for the whole, which is the total amount of visitors on a Saturday, set the proportion up like this: 144/x = 60/100. This is because we are looking for the total amount of visitors, and we know that 144 is 60% of x number of visitors. Cross multiply the values in order to get 14,400 = 60x. Now, divide each side by 60 to isolate the "x". 14,400/60 is 240. x = 240. The art museum had 240 visitors that Saturday.
5 0
3 years ago
Read 2 more answers
What is the best estimate for the area of circle A, in square units? Use the approximation “pie”≈3.14.
amm1812

Answer:

153.86 un²

Step-by-step explanation:

Area circle = πr²

Radius is the distance of the center to the edge(perimeter)

Radius = 7

Area circle = 3.14(7)²

Area circle = 3.14 * 49 = 153.86

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

7 0
3 years ago
Read 2 more answers
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