1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Natasha2012 [34]
3 years ago
11

2 The value of y is directly proportional

Mathematics
1 answer:
rusak2 [61]3 years ago
4 0

Answer:

y = 17.5

Step-by-step explanation:

Given that y is directly proportional to x then the equation relating them is

y = kx ← k is the constant of proportion

To find k use the condition y = 35 when x = 140, then

35 = 140k ( divide both sides by 140 )

0.25 = k

y = 0.25x ← equation of proportion

When x = 70, then

y = 0.25 × 70 = 17.5

You might be interested in
Suppose that $3000 is placed in an account that pays 16% interest compounded each year. Assume that no withdrawals are made from
Papessa [141]

Answer:

a) $3480

b) $4036.8

Step-by-step explanation:

The compound interest formula is given by:

A(t) = P(1 + \frac{r}{n})^{nt}

Where A(t) is the amount of money after t years, P is the principal(the initial sum of money), r is the interest rate(as a decimal value), n is the number of times that interest is compounded per year and t is the time in years for which the money is invested or borrowed.

Suppose that $3000 is placed in an account that pays 16% interest compounded each year.

This means, respectively, that P = 3000, r = 0.16, n = 1

So

A(t) = P(1 + \frac{r}{n})^{nt}

A(t) = 3000(1 + \frac{0.16}{1})^{t}

A(t) = 3000(1.16)^{t}

(a) Find the amount in the account at the end of 1 year.

This is A(1).

A(t) = 3000(1.16)^{t}

A(1) = 3000(1.16)^{1} = 3480

(b) Find the amount in the account at the end of 2 years.

This is A(2).

A(2) = 3000(1.16)^{2} = 4036.8

4 0
3 years ago
Your basketball team plays 5 games, your team scores 10 points in the first game, 3 points im the second game, 2 points in the t
andrew-mc [135]
I believe the answer is 4 points. Hope this helps!
4 0
3 years ago
Can someone please help me I really need help please help me thank you
Natalija [7]

Hey there! :)

Answer:

SA = 144 cm².

Step-by-step explanation:

Find the surface area by calculating the areas of each of the lateral sides and bases:

In this instance, the bases are triangles, so the formula A = 1/2(bh) will be used:

Bases:

A = 1/2(bh)

A = 1/2(4·3)

A = 1/2(12)

A = 6 cm².

There are two bases, so:

6 × 2 = 12 cm²

Find the areas of the lateral sides using A = l × w:

5 × 11 = 55 cm²

4 × 11 = 44 cm²

3 × 11 = 33 cm²

Add up all of the areas:

12 + 55 + 44 + 33 = 144 cm².

6 0
3 years ago
Read 2 more answers
I'm so bad at math please anyone help :(
kondaur [170]
It should be d. , Because if you take the equation 3x+y=9, and make it slope intercept form, it would be y= -3x+9. -3 is the slope, and 9 is the y intercept. D is the answer.
6 0
3 years ago
Pretty easy problem compared to most ive seen this morning
Kipish [7]

Answer:

The answer is -2

Step-by-step explanation:

slope = y2-y1/x2-x1

= -6-6/3-(-3)

= -12/3+3

= -12/6

= -2

8 0
3 years ago
Other questions:
  • Which linear equations best describe the given model?
    13·1 answer
  • Will give brainliest to correct answer.
    9·2 answers
  • Which is the largest multiple of five that lies in the solution set for 19
    12·1 answer
  • Alexandra has 78 emails in her inbox. She deletes 47 emails.How many emails are left in het inbox? Draw jumps and level the numb
    14·2 answers
  • Nick was thinking of a number. Nick halves it and gets an answer of 39.5. What was the original number?
    9·2 answers
  • What is 70 by 20%ughhhhh
    14·1 answer
  • Which represents the dilation shown where the black figure is the prelmage? 2 А (x,y) → (6x,y) B (x,y) = (2.5x, 2.5y) C (x,y) (3
    13·1 answer
  • Isaac has a piece of rope that 5 yards long. Into how many 1/2 - yard pieces of rope isaac can cut?
    11·2 answers
  • Draw a A PQR if PQ = 6.5cm, m&lt; PQR=75 °and m &lt;PRQ=45° using ruler and compasses<br>only.
    15·1 answer
  • Each batch of cookie mix need 0.4 cups of sugar, and each batch can make 16 cookies. If Ashley is making 4 batches of cookies, h
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!