Dmitri wants to cover the top and sides of this box with glass tiles that are 1 cm square. How many tiles will he need?The dimensions are 23 cm, 12 cm, and 7 cm.

Answers

Answer 1

Answer: I think the answer would be 1932 tiles cubed, I think you might need help from someone else though, sorry.

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Angel bought 8 oranges and 11 apples for a total of $15.22. He knows that each orange costs $0.50 and reasoned that each apple must cost a little more than $1.00. Is the answer reasonable why or why not?

Keanna paid 240$ for an X-box with a 15% markup from the original price. What was the original price

Answers

240$ x .15 = 36 + 240$ = 276$

Answer:

$204

Step-by-step explanation:

you have to do 15% of 240 and you get 36

you subtract 36 from 240 to get 204

On a coordinate plane, 2 straight lines are shown. The first solid line has a positive slope and goes through (0, negative 2) and (2, 0). Everything to the left of the line is shaded. The second dashed line has a negative slope and goes through (0, 2) and (4, 0). Everything below and to the left of the line is shaded. Which system of linear inequalities is represented by the graph? y > x – 2 and x – 2y < 4 y > x + 2 and x + 2y < 4 y > x – 2 and x + 2y < 4 y > x – 2 and x + 2y < –4

Answers

Answer:

$y\geq x-2$

$x+2y<4$

Step-by-step explanation:

step 1

Find the equation of the first inequality

Find the equation of the first solid line

we have the ordered pairs

(0,-2) and (2,0)

Find the slope

The formula to calculate the slope between two points is equal to

$m=(y2-y1)/(x2-x1)$

substitute the values

$m=(0+2)/(2-0)$

$m=(2)/(2)$

$m=1$

The equation in slope intercept form is equal to

$y=mx+b$

we have

$m=1$

$b=-2$ ---> the y-intercept is given

substitute

$y=x-2$

Remember that

Everything to the left of the solid line is shaded

The inequality is

$y\geq x-2$

step 2

Find the equation of the second inequality

Find the equation of the second dashed line

we have the ordered pairs

(0,2) and (4,0)

Find the slope

The formula to calculate the slope between two points is equal to

$m=(y2-y1)/(x2-x1)$

substitute the values

$m=(0-2)/(4-0)$

$m=(-2)/(4)$

$m=-(1)/(2)$

The equation in slope intercept form is equal to

$y=mx+b$

we have

$m=-(1)/(2)$

$b=2$ ---> the y-intercept is given

substitute

$y=-(1)/(2)x+2$

Remember that

Everything below and to the left of the line is shaded

The inequality is

$y<-(1)/(2)x+2$

Rewrite

Multiply by 2 both sides

$2y<-x+4$

$x+2y<4$

therefore

The system of inequalities is

$y\geq x-2$

$x+2y<4$

see the attached figure to better understand the problem

Answer:

17 1st option

35 2nd option

Step-by-step explanation:

Find the radian measure of the angle with the given degree measure. Round your answer to three decimal places.−38°

Answers

Answer:

-0.663

Step-by-step explanation:

-38/180 × pi = -0.6632251158

The answer would be -0.663

Ed spent 8.5% of his savings on lunch, which cost $5.25. How much did he have in savings before lunch?

Answers

$61.76 because you divide 100% by 8.5 then multiply the answer by 5.25... hopethat helped ;)

100 ÷ 8.5= 11.7647058824 then 11.7647058824 × 5.25= 61.7647058824 and round to 61.76
$61.76 because you divide 100% by 8.5 then multiply the answer by 5.25.

The perimeter of the rectangle below is 102 ft. What is the value of X

Answers

Perimeter = length of all sides added together

$102=(3x+5)+(3x+5)+(7x-4)+(7x-4)$

$102=2(3x+5)+2(7x-4)$

$102=6x+10+14x-8$

$102=20x+2$

$102-2=20x$

$100=20x$

$x= (100)/(20)$

$\left[\begin{array}{ccc}x=5\end{array}\right]$

Hope this helped

An Explanation Or Answer?A set of numbers is shown below:

{0, 0.4, 1, 2, 3}

Which of the following shows all the numbers from the set that make the inequality 4x + 1 ≥ 5 true?
{2, 3}
{1, 2, 3}
{0, 0.4, 1}
{0.4, 1}

Answers

4x + 1 ≥ 5
x≥1
Answer: {1, 2, 3}

Answer:

its B

Step-by-step explanation:

1,2,3,

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First twelve numbers first term4 rule:add15,subtract10