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3 years ago

Can someone please help me, please

Mathematics

1 answer:

e-lub [12.9K]3 years ago

5 0

I can only help you if you give me a lot of points

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The point (4, 12) is an ordered pair in a proportional relationship. What equation represents this relationship?

stira [4]

Answer:

$from \: the \: question \\ y =k x - - - (i)\\ where \: k \: is \: the \: constant \: of \: proportionality \\ for \: the \: point \: given \\ y = 12 \: and \: x = 4 \\ from \: (i) \\ 12 = (k \times 4) \\ k = \frac{12}{4} \\ k = 3 \\ substitute \: for \: k \: in \: (i) \\ y = 3x$

3 0

3 years ago

8/25 + 1/2 = ?? Simplify answer fully

Sergeu [11.5K]

Multiply the first fraction by two and the second by twenty five on both top and bottom.

16/50 + 25/50 = 41/50

7 0

3 years ago

Read 2 more answers

Fern knitted 20 scarves over 5 nights. After 8 nights of knitting, how many scarves would fern have made in total.

Studentka2010 [4]

Answer:

Fern will knit 32 scarves in 8 nights.

Step-by-step explanation:

Number of scarves knitted by Fern in 5 night = 20

Relation between number of scarves knitted and number of nights is proportional,

Therefore, Number of scarves knitted (s) ∝ Number of nights spent to knit the scarves (n)

s ∝ n

s = kn

k = $\frac{s}{n}$

Here, k = proportionality constant

For s = 20 and n = 5,

k = $\frac{20}{5}$

k = 4 scarves per night

For 8 nights, by using the same proportionality rule,

k = $\frac{s}{8}$

4 = $\frac{s}{8}$

s = 32 scarves

Therefore, Fern will knit 32 scarves in 8 nights.

4 0

3 years ago

I need help draw a array to represent the problem 5 x 8

xz_007 [3.2K]

Well draw a box with 10 squares going up and 20 square is going sideways and then shade and 5/8 of it

4 0

3 years ago

Rachel works at a bookstore. On Tuesday, she sold twice as many books as she did on Monday. On Wednesday, she sold 6 fewer books

natali 33 [55]

Let m = the amount books Rachel sold on Monday.
then t = the amount books Rachel sold on Tuesday.
then w = the amount books Rachel sold on Wednesday.

On Tuesday she sold twice as she did on Monday.
t = m * 2

On Wednesday she sold 6 fewer books than she did on Tuesday
w = t - 6

Now for the fun.

t = m * 2
w = t - 6

Substitute t for real value

w = m * 2 - 6

Now solve for m.

w - 6 = m * 2 <-- Transpose the 6
(w-6)/2 = m <-- Transpose the 2.
m = (w-2)/2 < The Law of Reflexive Property of Equality

3 0

3 years ago

Read 2 more answers