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Yuri [45]
3 years ago
11

" alt="5x - 15 + 130 = x - 2 " align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
olga nikolaevna [1]3 years ago
6 0

Answer:

x=-117/4

Step-by-step explanation:

5x-15+130=x-2

5x-x+115=-2

4x+115=-2

4x=-2-115

4x=-117

x=-117/4

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What is the diameter of the smallest circle that would enclose 2,000 pennies?
OlgaM077 [116]

Answer: 84.9

Step-by-step explanation:

Model's equation: y=1.11x^2

Since y = 2000

y = 1.11x^2

2000 = 1.11x^2

x^2 = 2000/1.11

x^2 = 1801.8

x = 42.45

Diameter of the smallest circle will be:

= 2x

= 2 × 42.45

= 84.9

7 0
3 years ago
The sum of two numbers is –40. One number
sasho [114]

Answer:

-27 + -13 = -40

Step-by-step explanation:

3 0
3 years ago
Please help i dont undertand it
n200080 [17]
B
AKA 2

I have Khan Acadamy!!

Your welcome!
5 0
3 years ago
Read 2 more answers
I need more help I dont understand these letters and numbers​
svetlana [45]

Answer:

Width also known as (W) = 1.5 meters

Area also known as (A) = 6 square meters

Length also known as (L) = ?

the formula to find Length is:

Step-by-step explanation:

L=\frac{A}{W}

L = \frac{6}{1.5}

L= 4 m

Choice 3 is the answer

1.5x = 6

x=4

substitute 4 for the x

1.5(4)=6

1.5×4 = 6

so

6=6

so the answer is

1.5x=6

x=4

8 0
3 years ago
Read 2 more answers
A right triangle is given with a missing value of t. It is stated that the triangle is an acute right triangle with angles 50∘ a
sergiy2304 [10]

Answer: t=20°


Step-by-step explanation:

1. By definition, the sum of the interior angles is 180 degrees.

2. Keeping the information above on mind, you can write the following expression:

90+50+2t=180

3. Now, you must solve for t as following:

140+2t=180\\2t=180-140\\2t=40\\t=\frac{40}{2}\\t=20

4. Therefore, the value of t is 20°


6 0
4 years ago
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