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Oksana_A [137]
3 years ago
6

A number where 3 is worth 1/10 as much and 2 is worth 10 times as much as the number 431, 621

Mathematics
1 answer:
Mandarinka [93]3 years ago
3 0
413,261 now i need to type more so it can be 20 characters
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Select all of the points that are solutions to the system of linear inequalities that is listed below 10x + 4y < 12 8x -3y &g
liberstina [14]

Answer:

(3, -8) and (2, -10)

Step-by-step explanation:

Given

10x + 4y < 12

8x - 3y > 20

Required

Select the true coordinate points in (3, -8) (2, 5) (-5, 1) (10, 3) (2, -10)

(3, -8)

x = 3 and y = -8

10x + 4y < 12

10 * 3 + 4 * -8 < 12

30 - 32 < 12

-2 < 12 --- True

8x - 3y > 20

8 * 3 - 3 * -8> 20

24 +24> 20

48> 20 --- True

(2, 5)

x = 2 and y = 5

10x + 4y < 12

10 * 2 + 4 * 5 < 12

20 + 20 < 12

40 < 12 --- False (No need to check the other inequality)

(-5, 1)

x = -5 and y = 1

10x + 4y < 12

10 * -5 + 4 * 1 < 12

-46 < 12 --- True

8x - 3y > 20

8 * -5 - 3 * 1 > 20

-43 > 20 --- False

(10, 3)

x = 10 and y = 3

10x + 4y < 12

10 * 10 + 4 * 3 < 12

112 < 12 --- False (No need to check the other inequality)

(2, -10)

x = 2 and y = -10

10x + 4y < 12

10 * 2 + 4 * -10 < 12

-20 < 12 --- True

8x - 3y > 20

8 * 2 - 3 * -10 > 20

46 > 20 --- True

Hence, the solution to the inequalities are:

(3, -8) and (2, -10)

4 0
2 years ago
Proportion : <br> X=<br> please help me :(
KIM [24]
X=7

You divide 14 by 2 to find the proportion (7) then multiply it by 1 to get the base length of the large triangle since they’re congruent.
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2 years ago
Jing- sheng made a scaled copy of the following rhombus. He used a scale factor greater than 1. What could be the side length of
S_A_V [24]

Answer:

See below.

Step-by-step explanation:

You don't provide the original side length, but since the scale factor is greater than 1, all correct answers are lengths that are greater than the original side length.

Answer: choose any two numbers that are greater than the original length.

6 0
3 years ago
Read 2 more answers
Karl uses 7 cups of flour to make 2 loaves of bread.
svetoff [14.1K]
Simple just multiply 7 times 3, which will equal 21. Karl will need 21 cups of flower to make 6 loaves of bread. Hope I helped!
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Evaluate. 5(-6) <br><br> Helppp
Nadusha1986 [10]

Step-by-step explanation:

-30

multiply you'll get a negative number

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