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2 years ago

My daughter, Lena is counting her blocks by color.

Mathematics

1 answer:

Leto [7]2 years ago

7 0

Answer:

The ratio of red to yellow blocks = 24:8 = 3:1

The ratio of green to blue blocks = 16:12 = 4:3

The ratio of purple to total blocks = 20:60 = 1:3

Step-by-step explanation:

(would appreciate it if you could mark me the brainliest:))

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In country X, the average yearly salary of 50-year-olds with 16 years of education is $50,275, while the average yearly salary o

nika2105 [10]

Answer:

38%

Step-by-step explanation:

The additional wage compared 12 years of education to 16 years of education is:

$Extra\ wage\%=\frac{50,275-36,265}{36,265} *100 = 38.6%$

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3 years ago

A teacher collects data on the number of hours, s, his students spend studying and the number of hours, t, they spend watching T

Sidana [21]

Since there is a negative correlation, evident by the negative slope of the equation of the line given to be -0.5, if we take t as 0, we get an equation of,
s = 3.6
This means that if a student does not watch television, he or she spends a maximum of 3.6 hours studying.

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3 years ago

organic milk cost $2.25 per half gallon at this rate how can the price of organic milk be determined ?

cupoosta [38]

Per half gallon it is $2.25
1/2 G=$2.25
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And so on...
Hope this helped

3 0

3 years ago

(1.)Find the slope of the line that passes through the given pair of points. (If an answer is undefined, enter UNDEFINED.) (?a +

jekas [21]

Answer:

1. The slope of the line is $m=\frac{-2b+3}{2a}$ .

2. The value of a is 18.

Step-by-step explanation:

If a line passes through two points, then the slope of the line is

$m=\frac{y_2-y_1}{x_2-x_1}$

(1)

It is given that the line passes through the points (-a + 3, b - 3) and (a + 3, -b). So, the slope of the line is

$m=\frac{-b-(b-3)}{a+3-(-a+3)}$

$m=\frac{-b-b+3}{a+3+a-3)}$

$m=\frac{-2b+3}{2a}$

The slope of the line is $m=\frac{-2b+3}{2a}$ .

(2)

If the line passing through the points (a, 1) and (6, 5), then the slope of the line is

$m_1=\frac{5-1}{6-a}=\frac{4}{6-a}$

If the line passing through the points (2, 7) and (a + 2, 1), then the slope of the line is

$m_2=\frac{1-7}{a+2-2}=\frac{-6}{a}$

The slopes of two parallel lines are same.

$m_1=m_2$

$\frac{4}{6-a}=\frac{-6}{a}$

On cross multiplication we get

$4a=-6(6-a)$

$4a=-36+6a$

$4a-6a=-36$

$-2a=-36$

Divide both sides by -2.

$a=18$

Therefore the value of a is 18.

8 0

3 years ago

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a me

nadezda [96]

The answer is between $175 and $295. The standard deviation rule tells us that for distributions that have the normal shape, approximately 99.7% of the observations fall within 3 standard deviations of the mean. Indeed, 175 = 235 − 3 * 20 and 295 = 235 + 3 * 20 are exactly 3 standard deviations below and above the mean, respectively.

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4 years ago