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2 years ago

What is the area of the shape

Mathematics

1 answer:

Radda [10]2 years ago

7 0

Answer:

A= 18

Step-by-step explanation:

To find the height, find the blocks inside the shape that is completely attached (they have to be in a straight vertical line). In this case, you can see that three vertical blocks in the middle of the shape is completely attached. That means your height is 3.

To find the width, look at the how many horizontal boxes make up the top. 6 block inside the shape corispond with 6 blocks on top of the shape, so the width is six.

Multiply 6 by 3 to get 18.

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5a – 10b = 45, when b = 3

balandron [24]

Well, since you have the value of b, the first thing you want to do is substitute that value in for b.

5a - 10(3) = 45

10*3 = 30

5a - 30 = 45

Now, to get the variable by itself (a) you have to + 30 because you have to reverse the subtraction.

5a = 75

Now, you divide by 5 to finish getting a by itself.

a = 15

Hope this helps!

6 0

2 years ago

Read 2 more answers

find the vertex, the equation and axis of symmetry, and the y-intercept of the graph of y=-3x^2-13x+3

stepladder [879]

Answer:

Vertex: (13/6,-133/12)

Axis of symmetry: x=13/6

y-intercept: y=3

Step-by-step explanation:

6 0

3 years ago

What type of graph is best to use to compare two sets of data? A. line graph B. double line graph C. bar graph D. double bar gra

LenKa [72]

Answer: b

Step-by-step explanation:

1. For any type of data a line graph and bar work but sense u are comparing a double line graph is best

6 0

3 years ago

(Disjoint vs. overlapping events) If you are picking a number between 1-20 what is the probability that you will pick a number g

8090 [49]

9/20

the numbers that would satisfy this are 15,16,17,18,19,20, 1,2,3

so there are 9/20

7 0

3 years ago

Read 2 more answers

On the first day a total of 40 items were sold for $356. Define the variables and write a system of equations to find the number

Alina [70]

<h3><u><em>Question:</em></u></h3>

On the first day, a total of 40 items were sold for $356. Pies cost $10 and cakes cost $8. Define the variables, write a system of equations to find the number of cakes and pies sold, and state how many pies were sold.

<h3><em><u>Answer:</u></em></h3>

The variables are defined as:

"c" represent the number of cakes sold and "p" represent the number of pies sold

The system of equations used are:

c + p = 40 and 8c + 10p = 356

18 pies and 22 cakes were sold

<h3><em><u>Solution:</u></em></h3>

Let "c" represent the number of cakes sold

Let "p" represent the number of pies sold

Cost of 1 pie = $ 10

Cost of 1 cake = $ 8

Given that total of 40 items were sold

number of cakes + number of pies = 40

c + p = 40 ------ eqn 1

<u><em>Given items were sold for $356</em></u>

number of cakes sold x Cost of 1 cake + number of pies sold x Cost of 1 cake = 356

$c \times 8 + p \times 10 = 356$

8c + 10p = 356 ----- eqn 2

<u><em>Let us solve eqn 1 and eqn 2</em></u>

From eqn 1,

p = 40 - c ---- eqn 3

Substitute eqn 3 in eqn 2

8c + 10(40 - c) = 356

8c + 400 - 10c = 356

-2c = - 44

c = 22

<em>Substitute c = 22 in eqn 3</em>

p = 40 - c

p = 40 - 22

p = 18

Thus 18 pies and 22 cakes were sold

3 0

3 years ago