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Westkost [7]
3 years ago
15

Dont graph it for me (it auto graphs it)

Mathematics
1 answer:
igomit [66]3 years ago
3 0

Answer:

y\leq -x+22

y\geq -0.5x + 16

(8,13)

8 nickels

13 dimes

Step-by-step explanation:

x = nickels

y = dimes

x+y\leq 22

x+y\leq 22\\\\-x        -x\\\\y\leq -x+22

0.05x+0.10y\geq 1.60\\\\-0.05x                  -0.05x\\\\0.10y\geq -0.05x+1.60\\\\/0.10               /0.10\\\\y\geq -0.5x + 16

(8,13)

8 nickels

13 dimes

Check your answer:

y\leq -x+22

y\geq -0.5x + 16

y\leq -x+22\\\\13\leq -8+22\\\\13\leq 14

This statement is true

y\geq -0.5x + 16\\13\geq -0.5(8)+16\\13\geq -4+16\\13\geq 12

This statement is true

Hope this helps!

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David Egil and frances share money in the ratio 2:7:9 Egil gets £85 more than David work out how much they each get ?
Leni [432]

Answer:

David gets £34, Egil gets £119 and Frances gets £153.

Step-by-step explanation:

Let the amount of money David gets be 2x, Egil be 7x and Frances be 9x.

7x = 2x + 85

7x - 2x = 85

5x = 85

x = 85 ÷ 5

x = 17

David (2x) = 2 × £17

                 = £34

Egil (7x) = 7 × £17

             = £119

Frances (9x) = 9 × £17

                     = £153

8 0
3 years ago
Nicholas wrote the steps below to simplify the fraction 20/30. Find his error and correct 20/30 = 20/5=4 30/6= 5
Margarita [4]

Answer

The correct answer should be 2/3, Nicholas should have divided the numerator and the denominator by the same greatest common factor.  

Step-by-step explanation:

When simplifying fractions, you need to look at the value of the numerator (top number) and denominator (bottom number) and compare their factors.  Factors are the number that we multiply to get that number.  To simplify a fraction to lowest terms, you need to find the greatest common factor of both numbers and divide each number by the same factor.  20 has the following factors:  1, 2, 4, 5, 10, 20.  30 has the following factors:  1, 2, 3, 5, 6, 10, 15, 30.  Although both 20 and 30 have the factors 1, 2, 5 and 10 in common, the greatest common factor is 10, so we divide both 20 and 30 by 10 to get 2/3.

3 0
3 years ago
PLEASE HELP<br> m&lt;6 = (2x-5)°<br> m&lt;4 = (x+5)°
-Dominant- [34]

9514 1404 393

Answer:

  ∠3 = 115°

Step-by-step explanation:

Angles 4 and 6 are "same-side interior angles", so are supplementary.

  ∠4 +∠6 = 180°

  (x +5) +(2x -5) = 180

  3x = 180

  x = 60

The angles marked 3 and 6 are alternate interior angles, so are congruent. The measure of angle 3 is ...

  ∠3 = ∠6 = (2x -5)° = (2(60) -5)°

  ∠3 = 115°

6 0
4 years ago
Use a scientific calculator to evaluate log 32.5 (round to the nearest hundredth).
AVprozaik [17]

Answer:

Log(32.5) ≈ 1.51

Step-by-step explanation:

*Look at the picture*

4 0
4 years ago
Did it work this time??????
Wittaler [7]
It’s the second one pls brainliest me
8 0
3 years ago
Read 2 more answers
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