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wel
3 years ago
14

Riley is saving up to buy a new television. She needs a total of $1,279.93. Riley has saved $200.39 already and earns $77.11 per

Mathematics
1 answer:
Genrish500 [490]3 years ago
5 0

Answer:

A. 14

Step-by-step explanation:

we subtract 200.39 from our total cost, which gives us 1,079.54 and then we divide by the amount she earns a week, 77.11. to get 14. it will take riley 14 weeks to have enough money to get the television.

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0.142857143 as a fraction simplified
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0.142857143 as a fraction equal

142857143/1000000000
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4 years ago
Add 2 1/9 + 7 4/9. Express is simplest form. Show work.
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Add he fractions first, 1/9 + 4/9 which is 5/9. Now add the whole numbers which are 2 and 7, and you get 9. Your fraction will be 9 5/9 and this number cannot be simplified anymore.
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3 years ago
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A, b, and c are collinear, and B is between a and c. The ratio of AB to AC is 1:2. If A is at (7,-1) and B is at (2,1) what are
Nutka1998 [239]

Answer:

C(-3,3)

Step-by-step explanation:

Given

A = (7,-1)

B = (2,1)

AB:AC = 1:2

Required

Determine the coordinates of C

Since, B is between A and C; we need to determine ratio BC as follows;

AB:AC = 1:2

Convert to division

\frac{AB}{AC} = \frac{1}{2}

<em>AC = AB + BC;</em>

\frac{AB}{AB + BC} = \frac{1}{2}

Cross Multiply

2 * AB = 1 * (AB + BC)

2 AB = AB + BC

2AB - AB = BC

AB = BC

Divide both sides by BC

\frac{AB}{BC} = 1

Rewrite as

\frac{AB}{BC} = \frac{1}{1}

Write as ratio

AB:BC = 1:1

Next is to determine the coordinates of C as follows;

Because B is between both points. we have:

B(x,y) = (\frac{mx_2 + nx_1}{m+n},\frac{my_2 + ny_1}{m+n})

Where

m:n = AB:BC = 1:1

B(x,y) = B(2,1)

A(x_1,y_1) = A(7,-1)

So; we're solving for x2 and y2

B(2,1) = (\frac{mx_2 + nx_1}{m+n},\frac{my_2 + ny_1}{m+n})

Where

Solving for x2;

x = \frac{mx_2 + nx_1}{m+n}

2 = \frac{1 * x_2 + 1 * 7}{1+1}

2 = \frac{x_2 +  7}{2}

Cross Multiply

2 * 2 = x_2 + 7

4 = x_2 + 7

x_2 = 4 - 7

x_2 = -3

Solving for y2;

y = \frac{my_2 + ny_1}{m+n}

1 = \frac{1 * y_2 + 1 * -1}{1+1}

1 = \frac{y_2- 1}{2}

Cross Multiply

2 * 1 = y_2 - 1

2  = y_2 - 1

y_2  = 2 + 1

y_2  = 3

<em>Hence, the coordinates of C are: C(-3,3)</em>

4 0
4 years ago
A political analyst conducted an observational study in 2014 that measured the rate of voter dissatisfaction with the United Sta
Ilia_Sergeevich [38]

Based on the results of the study, the conclusion which is valid is There is correlation between the increase in the rate of televised political attack ads since the previous congressional election and the rate of voter dissatisfaction in the observed districts.

<h3>What does the study conclude?</h3>

The study showed that the rate of voter dissatisfaction in the districts since the previous election cycles is similar to the rate of increase of televised political attack ads.

The fact that both the rate of voter dissatisfaction and televised political attack ads moved together means that they correlate with each other.

It is important to note however, that correlation does not equate causation so there might be no link between the two rates.

Find out more on correlation at brainly.com/question/26998752

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2 years ago
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Norma-Jean [14]

Answer:

V= 240 sq cm

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Step-by-step explanation:

V= l * w * h

V= 10 * 8 * 3

V= 240 sq cm

A=2(wl+hl+hw)

A=2(8*10 + 3*10 + 3*8)

A= 268 sq cm

5 0
3 years ago
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