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LekaFEV [45]
3 years ago
13

Four-fiths of a number minus two is greater then three-tenths of twice of that number

Mathematics
1 answer:
pashok25 [27]3 years ago
7 0

Answer:

Step-by-step explanation:

4/5 x - 2 > 3/10 * 2x

4/5 x - 2 > 3/5 x

4/5 x - 2 - 3/5x> 0

1/5x > 2

x > 10

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Choose the linear equation in slope-intercept form given the table of values.
KiRa [710]

Answer:

A. y = 6x -1

Step-by-step explanation:

take two coordinates: (-1,-7) , (2,11)

slope:

\frac{y2-y1}{x2-x1}

\frac{11--7}{2--1}

\frac{18}{3}

6 ....slope(m)

equation:

y - y1 = m(x - x1)

y - 11 = 6(x-2)

y = 6x -12 + 11

y = 6x -1

8 0
2 years ago
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HELP PLEASEEEE ON NUMBER 4
dem82 [27]

Answer: 280 calories in 3 ounces

Step-by-step explanation:

you can use a ratio to solve

840 calories per 9 ounces

\frac{840}{9}

unknown calories per 3 ounces

\frac{x}{3}

\frac{840}{9} =\frac{x}{3}

cross multiply

2520=9x

280=x

6 0
3 years ago
How many three digit numbers have exactly two digits equal and the third different?
ale4655 [162]

Answer:

The answer should be 81. Hope this helps!

4 0
3 years ago
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In a field of ducks and a dog someone counted 25 heads and 80 legs. How many dogs and ducks are there
brilliants [131]
Ducks have 1 head. Dogs have 1 head.
Ducks have 2 feet. Dogs have 4 feet.

If x = no. of ducks and g = no. of dogs

x + g = 25
2x + 4g = 80

Let's use substitution to solve.

x + g = 25 ⇒ x = 25 - g
replace x with 25 - g in the other equation and solve for g

2x + 4g = 80
2(25 - g) + 4g = 80
50 - 2g  + 4g = 80
50 + 2g = 80
2g = 30
g = 15

Now use g = 15 in an earlier equation to find x.

x + g = 25
x + 15 = 25
x = 10
6 0
3 years ago
Read 2 more answers
6
ahrayia [7]

The length of A"B" is 20 units

<h3>How to determine the length of A'B'?</h3>

From the figure, we have:

A = (1, 4)

B = (4, 8)

The distance AB is:

AB = \sqrt{(x_2 -x_1)^2 + (y_2 -y_1)^2

So, we have:

AB = \sqrt{(1 -4)^2 + (4-8)^2

Evaluate

AB = \sqrt{25

This gives

AB = 5

The scale factor of dilation is 4.

So, we have:

A'B' = 5 * 4

Evaluate

A'B' = 20

Hence, the length of A"B" is 20 units

Read more about dilation at:

brainly.com/question/18977334

#SPJ1

3 0
2 years ago
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