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trapecia [35]
3 years ago
15

Please help must show work

Mathematics
1 answer:
Kruka [31]3 years ago
5 0

Answer:

29. A) 8+0.40x≤12

B) x≤10

C) a number line with points at 0 and 10, filled in

30) A) 2x≤18

B) x≤9

C) a number line with points at 0 and 9, filled in.

Step-by-step explanation:

29. A) 8+0.40x≤12

B) 0.40x≤12-8

0.40x≤4

x≤10 They can have up to 10 toppings

C) a number line with points at 0 and 10, filled in

30) A) 2x≤18

B) x≤18÷2

x≤9 He can drive up to 9 hours.

C) a number line with points at 0 and 9, filled in.

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It takes her 3 1/2 miles to get to the movies


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4 years ago
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The height of a triangle is 4 inches. Greater than twice it's base. The area of the triangle is no more than 168 in.². Which any
mestny [16]

Step-by-step explanation:

this problem seeks to test our knowledge on word problems and algebra

<u>Solution</u>

let the base be x, and

the height h = 2x+4

We know that area of a triangle is given as

A= \frac{1}{2} b*h

substituting our given values we have

168= \frac{1}{2} x*(2x+4)\\\\168= \frac{2x^2+4x}{2} \\\\168= x^2+2x\\\\

re-arranging we have

x^2+2x-168=0\\\\

we can now find two factors that will add up to give 2 and multiply to give -168

they are 14 and -12

x^2-14x+12x-168=0\\\\x(x-14)+12(x- 14)=0\\\\x+12=0\\\\x=-12\\\\x-14=0\\\\x=14

The possible base of the triangle is 14 in

and the height is

h= 2x+4\\\\h=2(14)+4\\\\h= 28+4\\\\\h= 32 in

7 0
3 years ago
Yes im playing prodigy LOL
Ilya [14]

Answer:

0,05

Step-by-step explanation:

1)First, Let’s find the mean of the data table

12 + 10 + 12 + 6 + 8 + 4 + 2 + 12 = 66

66 ÷ 8 = 8,25

2)12 - 8,25 = 3,75

10 - 8,25 = 1,25

12 - 8,25 = 3,75

6 - 8,25 = -1,75

8 - 8,25 = -0,75

4 - 8,25 = -3,75

2 - 8,25 = -5,75

12 - 8,25 = 3,75

3) 3,75 + 1,25 + 3,75 - 1,75 - 0,85 - 3,75 - 5,75 + 3,75 = 0,4

0,4 ÷ 8 = 0,05

8 0
3 years ago
The regular prices of sandals at a shoe store are marked down by 15%. Look at each sale price and determine whether it is a 15%
qwelly [4]

Answer:

A. YES

B. NO

C. YES

Step-by-step explanation:

A. 100% = $24.30

24.3 x 0.85 = 85% = $20.66 (yes)


B. 100% = $55.80

55.8 x 0.85 = 85% = $47.43 (no)


C. 100% = $66.50

66.5 x 0.85 = 85% = $56.53 (yes)

8 0
3 years ago
Which of the following is an equation that best describes compound interest?
cluponka [151]

Answer:

simple interest

Step-by-step explanation:

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4 years ago
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