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Bezzdna [24]
3 years ago
13

Todd is 3 years older than his brother Jack. If Jack is x years old and Todd is y years

Mathematics
2 answers:
True [87]3 years ago
8 0

Answer:

Todd is 31years old.

Step-by-step explanation:

x = 28 \\ y =  \\ 28 + 3 = 31

o-na [289]3 years ago
4 0
The answer to this would be 25.

Explanation:If Todd is three years older than jack you will have to subtract the three from that 28 to get your answer.
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In 2000 the number of students enrolled at Arlington County day school was 823 students in 2010 the population was approximately
RoseWind [281]

Answer:

enrollment decreases by 14.34%.

Step-by-step explanation:

Given that number of students enrolled in 2000 = 823

Given that number of students enrolled in 2010 = 705

705 is less than 823 so that means number of students enrollment is decreasing.


Decrease = 823-705 = 118

Percent decrease is given by formula:

Percent =\frac{part}{whole}\cdot100 =\frac{118}{823}\cdot100= 14.3377885784

which is approx 14.34%.

Hence final answer is that enrollment decreases by 14.34%

5 0
3 years ago
A baker made two cakes of the same size. • At the end of the day, there was 23 of a chocolate cake left. • There was 56 of a str
Murrr4er [49]
This is the concept of algebra, To solve the question  we proceed as follows;
Number of chocolate cake left=23 
The number of pieces that was left after the cake was divided into 2 equal pieces will be:
23*2
=46

Number of strawberry cake left = 56
The number of pieces that was left after the cake was divided into 3 equal pieces will be:
56*3
=168

Comparing the two fraction, the flavor that had larger pieces was strawberry cake;
This cake was larger compared to chocolate by:
168-46
=122
The answer is Strawberry by 122 of a cake
5 0
3 years ago
Graphing in Point-Slope Form y−y1=m(x−x1) <br> ​<br> Graph the equation y+7=−45(x−4) ?
nevsk [136]

Answer:

<h2>The graph is in the attachment.</h2>

Step-by-step explanation:

The point-slope form of an equation of a line:

y-y_1=m(x-x_1)

<em>m</em><em> - slope</em>

<em>(x₁, y₁)</em><em> - a point on a line</em>

The slope-intercept form of an equation of a line:

y=mx+b

<em>m</em><em> - slope</em>

<em>b</em><em> - y-intercept → (0, b)</em>

We have the equation in a point-slope form:

y+7=-\dfrac{4}{5}(x-4)

y-(-7)=-\dfrac{4}{5}(x-4)

Therefore we have one point: <em>(4, -7)</em><em>.</em>

<em>Convert to the slope-intercept form:</em>

y+7=-\dfrac{4}{5}(x-4)              <em>use the distributive property</em>

y+7=-\dfrac{4}{5}x+\left(-\dfrac{4}{5}\right)(-4)

y+7=-\dfrac{4}{5}x+\dfrac{16}{5}

y+7=-\dfrac{4}{5}x+3\dfrac{1}{5}          <em>subtract 7 from both sides</em>

y=-\dfrac{4}{5}x-3\dfrac{4}{5}

Put <em>x = -1</em><em> </em>to the equation:

y=-\dfrac{4}{5}(-1)-3\dfrac{4}{5}=\dfrac{4}{5}-3\dfrac{4}{5}=-3

Therefore we have the second point <em>(-1, -3)</em>.

3 0
3 years ago
Draw a triangle giving the following information: Right triangle, height of 3.1 ft and base of 8.9 ft. Find the length of the hy
Talja [164]

Hypotenuse Length: 9.42443632267

Angle 1 (opposite larger side): 70.8 Degrees

Angle 2 (opposite smaller side): 19.204 Degrees

7 0
3 years ago
Marcus and Lara each have the same number of songs on their ipods. Marcus has 10x + 8 songs and Lara has
devlian [24]

Answer:

The value of x is 20.

Step-by-step explanation:

Given that

Number of songs Marcus has = 10x+8

Number of songs Lara has = 15x-92

It is also given that they have the same number of songs that means both the expressions should be equal.

Putting both equal

10x+8 = 15x-92

This is a linear equation in one variable which can be solved using properties of equality

Subtracting 10 from both sides

10x+8-10x = 15x-92-10x\\8 = 5x-92

Adding 92 on both sides

8+92 = 5x-92+92\\100 = 5x

Dividing both sides by 5

\frac{5x}{5} = \frac{100}{5}\\x  = 20

Hence,

The value of x is 20.

3 0
3 years ago
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