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2 years ago

10 lemons cost £1. 20 find the cost for 4

Mathematics

2 answers:

Kryger [21]2 years ago

7 0

0.48p

Step-by-step explanation:

1.20÷10=0.12

0.12×4=0.48

tigry1 [53]2 years ago

6 0

put the wrong answer ignore this

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What is a scaled copy?

ELEN [110]

Answer:

A scale copy of a figure is a figure that is geometrically similar to the original figure.

Step-by-step explanation:

Hope this makes sense.

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2 years ago

How do you factor 50x - 32x^3

adoni [48]

<span>50x - 32x^3
= 2x (25 - 16x^2)

hope that helps</span>

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3 years ago

In circle p what is the measure of arc ab

S_A_V [24]

Remember the arc is equal to the central angle, so ab will equal angle APB. they told you angle APB is a right angle, how many degrees is this? that is what ab will be also:)

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3 years ago

Let n be a natural number. Show that 3 | n3 −n

Vladimir [108]

Let $n=1$ . Then $n^3-n=1^3-1=0$ . By convention, every non-zero integer $n$ divides 0, so $3\vert n^3-n$ .

Suppose this relation holds for $n=k$ , i.e. $3\vert k^3-k$ . We then hope to show it must also hold for $n=k+1$ .

You have

$(k+1)^3-(k+1)=(k^3+3k^2+3k+1)-(k+1)=(k^3-k)+3(k^2+k)$

We assumed that $3\vert k^3-k$ , and it's clear that $3\vert 3(k^2+k)$ because $3(k^2+k)$ is a multiple of 3. This means the remainder upon divides $(k+1)^3-(k+1)$ must be 0, and therefore the relation holds for $n=k+1$ . This proves the statement.

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2 years ago

If Z is the midpoint of RT , what are x, RZ AND RT?

Novosadov [1.4K]

Since z is the midpoint, rz and zt must be equal

4x - 15 = 25

4x = 40

X = 10
Plug the answer in and rz equals 40-15 which is 25.

25 + 25 = 50

Or if you really wanted, since you know 25 is half, just add them together right off the bat. (25 and 25, I mean)

5 0

3 years ago

Read 2 more answers