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1 year ago

-6<5t-1<0solve inequality

Mathematics

1 answer:

blsea [12.9K]1 year ago

8 0

To solve the inequality:

$-6$

Add 1 to the sides of the inequality:

$-6+1$

Then

$-5$

Dividing all the inequality by 5, we have:

$\frac{-5}{5}$

Graphically:

Or, in the interval notation(-1, 1/5).

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What are the answers to these

ziro4ka [17]

Answer:

5A. 80

6A. 84

8. 80

12. 130

17. 800

2. 10.5 cm

3. $102

4. 33 cars

5B. Gas: $55.44 Electricity: $76.56

6B. 85%, $17

Step-by-step explanation:

:) I think these are correct! They are in order from each page!

5A: 80*20%=16

6A: 84*50%=42

8: 80*75%=60

12: 130*40%=52

17: The printer costs $160, and 800*20%=160

2: 25% of 84 is 21 so there is 63 cm left. Divide by 6 and you get 10.5

3: 25% of 136 is 34 so he has 136-34 left, or 102

4: 17.5% of 240 is 42 so there are 198 other colors. Divide by 6 you get 33

5B: 42% of 132 is 55.44 if you subtract you get 76.56

6B: 100%-15%=85% and 85% of 20 is 17

7 0

3 years ago

Simplify all of these

kiruha [24]

Answer:

1) option C, 4b + 4

2) option A, 7x

3) option C, 2a - 12

4) option D, 12x - 6

8 0

3 years ago

Read 2 more answers

Solve for the indicated angle to the nearest tenth of a degree. o 18 25

Sonbull [250]

Answer:

$\theta=54.2^\circ$

Step-by-step explanation:

Right Triangles

The ratios of the sides of a right triangle are called trigonometric ratios. Each acute angle has an adjacent side and an opposite side. The trigonometric ratios are defined upon those sides.

The tangent ratio is defined as:

$\displaystyle \tan\theta=\frac{\text{opposite side}}{\text{adjacent side}}$

The opposite side is 25 and the adjacent side is 18, thus:

$\displaystyle \tan\theta=\frac{25}{18}=1.389$

The angle is calculated by using the inverse tangent function:

$\theta=\arctan 1.389$

$\boxed{\theta=54.2^\circ}$

5 0

3 years ago

A half game in football is 45 min. At one point, a half was extended so that it was 48 minutes 30 seconds long. By what percenta

kozerog [31]

Answer:

Step-by-step explanation:

Multiply the number 45 by at least 1 point 0 something and therefore. We can assume that a 5% increase is around 47 minutes and 15 seconds and a 10% increase is around 49 minutes and 30 seconds ranging for you to use from 6% to 9%. The exact answer for the increase is around 7.78%, for me, I would plug in the equation like 45*1.7 and 45*1.8 on the calculator for more accuracy since you would need to round to the full percentage if it's between 7.5% to the exact number, it would be fully rounded to 8% since you would need at least a 5 to round up.

3 0

3 years ago

Erika bought 3 kilograms of cinnamon red hots and 1 kilogram of gummy bears for $21.00. Meanwhile, Irene bought 3 kilograms of c

grin007 [14]

Erika $21
3k of cinnamon
1g of gummies

Irene $39
3k of cinnamon
3k of gummies

c= cost of 1 kilogram of cinnamon
g= cost of 1 kilogram of gummies

Erika's Equation
3c + 1g= $21

Irene's Equation
3c + 3g= $39

Solve for one variable in equation one and substitute it in the other equation.

3c + 1g= 21
subtract 3c from both sides
g= 21 - 3c

Substitute g=21 - 3c in equation
3c + 3g= $39
3c + 3 (21 - 3c)= 39
multiply all in parentheses
3c + 63 - 9c= 39
63 - 6c= 39
subtract 63 from both sides
-6c= -24
c= $4

Substitute c=4 in equation to find g
3c + g= 21
3(4) + g= 21
12 + g= 21
subtract 12 from both sides
g= $9

ANSWER: The price of 1 kilogram of cinnamon red hots is $4. The cost of 1 kilogram of gummies is $9.

Hope this helps! :)

3 0

3 years ago