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Rus_ich [418]
3 years ago
10

Emily thought of a counting number, and then she added the next counting number to it. She got the sum of 57. What was Emily’s n

umber?
Mathematics
2 answers:
Dovator [93]3 years ago
8 0
Let this number be x. The next number is (x+1). And their sum is 57. Then, we have to solve this equation x+x+1=57
                                       2x=56
                                       x=28
Emily's number was 28
patriot [66]3 years ago
5 0

Answer:

28

Step-by-step explanation:

do reverse math

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The equation of a circle is x^2 + y^2= 42.25 Find the radius of the circle.
poizon [28]

Answer:

radius = 6.5

Step-by-step explanation:

The equation of a circle centred at the origin is

x² + y² = r² ( where r is the radius )

x² + y² = 42.25 ← is in this form

with r² = 42.25 ( take the square root of both sides )

r = \sqrt{42.25} = 6.5

7 0
3 years ago
Use a definition, postulate, or theorem to find the value of x in the figure described.
Yuri [45]
The Definition of Linear Pair states that both ∠ABC and ∠CBD are equal to 180 degrees. In the question, this tells you that 
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5 0
3 years ago
In the equation below, b and c represent the price per pound, in dollars, of beef and chicken, respectively, x weeks after july
Bumek [7]

Answer:

D

Step-by-step explanation:

Since 1 and c are supposed to be equal, I put 2.35+0.25x=1.75+0.4x and solved that for the x. I got 4. Then, since I want to find the price of the beef, I plugged the 4 in the equation of "b" and got 3.35.

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4 0
3 years ago
Solve -np-80&lt;60 for n. Show your work.<br><br> Solve 2a-5d=30 for d. Show your work.
xz_007 [3.2K]

-np-80 < 60\qquad\text{change the signs}\\\\np+80

------------------------------------------------------

2a-5d=30\qquad\text{subtract 2a from both sides}\\\\-5d=-2a+30\qquad\text{change the signs}\\\\5d=2a-30\qquad\text{divide both sides by 5}\\\\d=0.4a-6

8 0
3 years ago
Plz help me well mark brainliest if correct ...??????????
7nadin3 [17]

Answer:

Median.

Step-by-step explanation:

The median is the value separating the higher half of a data sample, a population, or a probability distribution, from the lower half. In simple terms, it may be thought of as the "middle" value of a data set. For example, in the data set {1, 3, 3, 6, 7, 8, 9}, the median is 6, the fourth number in the sample. The median is a commonly used measure of the properties of a data set in statistics and probability theory.

6 0
3 years ago
Read 2 more answers
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