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2 years ago

Please hurry

Mathematics

2 answers:

Luda [366]2 years ago

6 0

Answer:

Yes.

10y = x

or x / 10 = y

or x / y = 10

Step-by-step explanation:

20 / 2 = 10

50 / 5 = 10

60 / 6 = 10

70 / 7 = 10

ella [17]2 years ago

5 0

Answer:

Yes x and y do have a proportional relationship because with every 10 copies of paper the value of y goes up by 1 meaning that it would have a constant rate of change equal to 1/10

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Will mark brainliest!!!! Please answer correctly, the questions are in the picture.

zhenek [66]

Answer:

1. A

2. B

Step-by-step explanation:

1. Only option A creates that graph, the other options are either backwards or are on top of each other.

2. Because the two lines are parallel, and do not intersect at all, there will be 0 solutions.

4 0

3 years ago

The length of each side of a square increases by 2.5 inches to form a new square with a perimeter of 70 inches. The length of ea

Lunna [17]

Answer:

15 inches

Step-by-step explanation:

let n = side length

(n + 2.5) x 4 = 70

4n + 10 = 70

4n = 60

n = 15

6 0

3 years ago

Spanish class has a total of 30 students. The number of males is 12 more than the number of females. How many males and how many

docker41 [41]

Answer:

21, 9

Step-by-step explanation:

If girls are x, then boys are x + 12

x + x + 12 = 30

2x + 12 = 30

2x = 18

x = 9

There are 9 girls and 21 boys

8 0

2 years ago

Read 2 more answers

Finding values or<br> k(x) = x - 2<br> h(x) = x2 +1<br> (h + k)(2) =

Serjik [45]

Answer:

Step-by-step explanation:

$(h+k)(x)=h(x)+k(x)\\\\\bold{METHOD\ 1:}\\\\k(x)=x-2,\ h(x)=x^2+1\\\\(k+h)(2)=h(2)+k(2)\\\\\text{Calculate}\ h(2)\ \text{and}\ k(2).\\\text{Put}\ x=2\ \text{to the equations of the functions}\\\\h(2)=2^2+1=4+1=5\\k(2)=2-2=0\\\\\text\\\\\text{Substitute:}\\\\(h+k)(2)=5+0=5$

$\bold{METHOD\ 2:}\\\\k(x)=x-2,\ h(x)=x^2+1\\\\(h+k)(x)=h(x)+k(x)=(x^2+1)+(x-2)=x^2+x-1\\\\(h+k)(2)-\text{put}\ x=2\\\\(h+k)(2)=2^2+2-1=4+2-1=6-1=5$

5 0

2 years ago

Question 17

SOVA2 [1]

Answer:

1.8 × 10^10

Step-by-step explanation:

(7.2 × 10 = 72)

(72) ÷ (4 × 10^-9) = 1.8 × 10^10

3 0

2 years ago