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Ksenya-84 [330]
3 years ago
14

PLEASE HELP I DON'T UNDERSTAND

Mathematics
1 answer:
OLga [1]3 years ago
6 0
X = the number of months the tire was used
y = the thickness of the tire tread

y = -(3/7)x + 20

Substitute x for 20 (the number of months the tire was used) and solve for y.

The next question: Substitute x for 49 (the number of months the tire was used) and solve for y.


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I really don’t understand this and i need help so if you can pls help
ohaa [14]

Answer:

1537500

Step-by-step explanation:

it should be that. all you do is multiply 615000 by 2.5

5 0
2 years ago
When purchased, the height of a Japanese maple sapling is 14 inches. The tree is expected to grow 2.5 inches each month. Which f
victus00 [196]

Answer:

Step-by-step explanation:

The initial height of a Japanese maple sapling is 14 inches.

The tree is expected to grow 2.5 inches each month. This increase in height is linear, thus it is in arithmetic progression.

The expression for arithmetic progression is

Tn = a + (n-1)d

Where a = the first term of the series

d = common difference

Tn is the nth term of the series

n = the number of terms.

From the information given

a = 14 inches because it is the initial height of the tree

d = 2.5 because it is the difference in height between 2 consecutive months

n = m( number of months)

Tn = f(m)

function models the relationship between the height of the tree f(m) and the number of m months of growth will be

f(m) = 14 + 2.5(m-1)

6 0
2 years ago
Four whole numbers are each rounded to the nearest 10. The sum of the four rounded numbers is 90. What is the maximum possible s
qwelly [4]

Answer:Whats the highest number each number can go up to before it rounds up? Its +4 as each number will round up otherwise. So if the rounded up numbers were 10,20,30,30. They can go up to 14,24,34,34. So its 106.please mark as brainliest

Step-by-step explanation:

5 0
3 years ago
NEED HELP ASAP!!!!!
Law Incorporation [45]

Answer:the length 7

Step-by-step explanation:each one is times 3 6x3 8x3 3x7=21

3 0
1 year ago
Cuantas veces cabe el 7 en el 4
SVEN [57.7K]
<span>7 no encaja en 4, por lo que la respuesta sería cero 7 ajustes en 4, cero veces</span>
8 0
2 years ago
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