1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sweet [91]
3 years ago
11

They keep returning and saying show work again​

Mathematics
1 answer:
ankoles [38]3 years ago
7 0

Answer:

We conclude that:

20\times \:3\frac{1}{5}=64

Step-by-step explanation:

Given the expression

20\:\times 3\frac{1}{5}

convert mixed number to improper fraction: a\frac{b}{c}=\frac{a\times c+b}{c}

i.e. 3\frac{1}{5}=\frac{3\times 5+1}{5}=\frac{16}{5}

so the expression becomes

20\:\times 3\frac{1}{5}\:=20\times \:\frac{16}{5}

Factor the number: 20 = 5×4

              =5\times \:4\times \frac{16}{5}

Cross-cancel common factor: 5

               =4\times \:16    

Multiply the numbers: 4×16 = 64

               =64

Therefore, we conclude that:

20\times \:3\frac{1}{5}=64

You might be interested in
Triangle PQR is transformed to triangle P'Q'R'. Triangle PQR has vertices P(4, 0), Q(0, −4), and R(−8, −4). Triangle P'Q'R' has
Whitepunk [10]

Answer:

Please find attached the required plot accomplished with an online tool

Part A:

1/4

Part B:

P''(-1, 0),  Q''(0, -1), and R''(2, -1)

Part C:

Triangle PQR is similar to triangle P''Q''R'' but they are not congruent

Step-by-step explanation:

Part A:

Triangle ΔPQR has vertices P(4, 0), Q(0, -4), R(-8, -4)

Triangle ΔP'Q'R' has vertices P'(1, 0), Q'(0, -1), R'(-2, -1)

The dimensions of the sides of the triangle are given by the relation;

l = \sqrt{\left (y_{2}-y_{1}  \right )^{2}+\left (x_{2}-x_{1}  \right )^{2}}

Where;

(x₁, y₁) and (x₂, y₂) are the coordinates on the ends of the segment

For segment PQ, we place (x₁, y₁) = (4, 0) and (x₂, y₂) = (0, -4);

By substitution into the length equation, we get;

The length of segment PQ = 4·√2

The length of segment PR = 4·√10

The length of segment RQ = 8  

The length of segment P'Q' = √2

The length of segment P'R' = √10

The length of segment R'Q' = 2

Therefore, the scale factor of the dilation of ΔPQR to ΔP'Q'R' is 1/4

Part B:

Reflection of (x, y) across the y-axis gives;

(x, y) image after reflection across the y-axis = (-x, y)

The coordinates after reflection of P'(1, 0), Q'(0, -1), R'(-2, -1) across the y-axis is given as follows;

P'(1, 0) image after reflection across the y-axis = P''(-1, 0)

Q'(0, -1) image after reflection across the y-axis = Q''(0, -1)

R'(-2, -1) image after reflection across the y-axis = R''(2, -1)

Part C:

Triangle PQR is similar to triangle P''Q''R'' but they are not congruent as the dimensions of the sides of triangle PQR and P''Q''R'' are not the same.

6 0
3 years ago
Analia is a school district manager. Here are some details about two schools in her district for the last school year:
AfilCa [17]

Answer is in this link:

brainly.com/question/17270742

6 0
1 year ago
Find the value of each variable in the parallelogram. Round your answers to the nearest tenth, if necessary.
lilavasa [31]

Answer:

z = 2

y = 5

Step-by-step explanation:

3 0
2 years ago
What is the value of x? 1/3x-2/3=-18 ( please help it’s due tomorrow)
Nikolay [14]
X=56 is the answer :)
4 0
3 years ago
A trapezoid has an area of 184 in^2. The height is 8 in and the length of one base is 16 in. Write and solve an equation to find
inna [77]

Answer:

The length of other base is <u>30 in</u>.

Step-by-step explanation:

Given:

A trapezoid has an area of 184 in^2. The height is 8 in and the length of one base is 16 in.

Now, to get the length of other base.

Let the length of other base be  (b).

Area of trapezoid (Area) = 184 in².

Height of trapezoid (h) = 8 in.

Length of one base (a) = 16 in.

Now, to get the length of other base of trapezoid we solve an equation:

Area=\frac{(a+b)}{2} h

184=\frac{(16+b)}{2}\times 8

184=(16+b)\times 4

<em />184=64+4b<em />

<em>Subtracting both sides by 64 we get:</em>

<em />120=4b<em />

<em>Dividing both sides by 4 we get:</em>

30=b\\\\b=30\ in.

Therefore, the length of other base is 30 in.

3 0
3 years ago
Other questions:
  • The Washingtons but a studio apartment for $240,000. They pay a down payment of $60,000. What percent of the purchase price woul
    13·1 answer
  • a data set consists of these points (2, -4), (4, -7), (5, -12), Elisa found the regression equation to be y = 2.5x + 1.5 is she
    9·1 answer
  • Use slopes and y-intercepts to determine if the lines x=−7 and x=5 are parallel.
    10·1 answer
  • What is the perimeter of the triangle? Round to the nearest tenth.
    9·1 answer
  • How do you do fraction ,like 20 on top line then 30 on bottom ,I was bad art math sorry please explaine to my daughter so she ca
    15·2 answers
  • Emie read that the movie made 25,992,412.50 in its third week he also read that the average ticket price for this week was 8.35h
    6·1 answer
  • Is it possible to find a value of $x$ so that the value of the surface area (in square inches) is equal to the value of the volu
    5·1 answer
  • ILL MARK U BRAINLIEST!!!
    8·2 answers
  • 3.) A linear function passes through the points (0, 2) and (-4,0).
    11·1 answer
  • A doctor has an annual income of $145.000. The income tax the Dr. Has to pay is 6%. What is the amount of income tax has to pay
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!