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Arisa [49]
3 years ago
15

A nursery owner buys 7 panes of glass to fix some damage to her greenhouse. The 7 panes cost

Mathematics
1 answer:
Kobotan [32]3 years ago
3 0

Answer:

Its 6.45

Step-by-step explanation:

we first need to know how much is one pane of glass so i divide

15.05÷ 7 and got $2.15

so each one pane of glass is $2.15

than i multiply 2.15 x 3 and got 6.45

So the cost is 6.45

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Please help and please slove and explain im not getting this
OLga [1]

Answer:

x-intercept= (3⅓, 0)

y-intercept= (0, 4²⁄₇)

Please see the attached picture for the graph.

Step-by-step explanation:

-9x -7y= -30

Let's simplify the equation by dividing both sides by -1.

9x +7y= 30

x- intercept occurs at y= 0.

When y= 0,

9x +7(0)= 30

9x= 30

x= 30 ÷9

x = 3 \frac{1}{3}

Thus, x- intercept occurs at (3⅓, 0).

y-intercept occurs at x= 0.

When x= 0,

9(0) +7y= 30

7y= 30

y= 30 ÷7

y = 4 \frac{2}{7}

Thus, y- intercept occurs at (0, 4²⁄₇).

_____

To graph the equation, draw the x and y axis on a graph paper. Use an appropriate scale to divide the line into equal parts. Next, plot the points (3⅓, 0) and (0, 4²⁄₇). Then, join the two points with a straight line.

Notes:

  • x- intercept is the point at which the graph cuts through the x- axis. In this case, your x- axis is the horizontal line that runs from left to right of your graph paper. In order for a point to be on this horizontal line, look at the y- axis and notice that it sits at y= 0. The same reason applies for why the y- intercept occurs at x= 0. This has to do with the two axis cutting each other at the point (0,0), resulting in the x and y coordinates of 0 for the y and x intercepts respectively.

  • Simplifying the equation in the first step is not necessary, but it is a good practice and might reduce carelessness.

5 0
2 years ago
Suzette deposited $800 into a bank account earning simple interest of 2.5% each year. After 5 years, how much interest had her a
Blababa [14]

Answer:

\boxed {\boxed {\sf \$ 100.00}}

Step-by-step explanation:

The formula for simple interest is

I=prt

where <em>p</em> is the principal, <em>r </em>is the rate, and <em>t</em> is the time.

The principal, or initial amount is $800 and the time is 5 years The interest rate is 2.5%, but we must convert to a decimal.

Divide by 100 or move the decimal place two spots to the left.

  • 2.5/100=0.025       or          2.5 ⇒  0.25 ⇒ 0.025

Substitute the known values into the formula.

p= 800 \\r= 0.025 \\t= 5

I= (800)(0.025)(5)

Multiply.

I=20(5)\\I=100

After 5 years, Suzette's account has earned $100.00

8 0
2 years ago
Are these triangles congruent or can't be determined?
Luda [366]
False. THey are congruent
6 0
3 years ago
Read 2 more answers
Which of the following is an equation of the line through (2,3) and (-1, -12)?
SSSSS [86.1K]

Answer:

C (y=5x-7)

Step-by-step explanation:

First, you find the slope between the 2 points which is 5, then you use one of the points to form an equation.  

You then find it's y=5x-7.

8 0
3 years ago
What is 13x-8 less than or equal to -32 simplified?
lapo4ka [179]

Answer:

Add

8

8 to both sides

1

3

x

≥

−

3

2

+

8

13x≥−32+8


2 Simplify

−

3

2

+

8

−32+8 to

−

2

4

−24

1

3

x

≥

−

2

4

13x≥−24


3 Divide both sides by

1

3

13

x

≥

−

2

4

1

3

x≥−

​13

​

​24

​​


3 0
3 years ago
Read 2 more answers
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