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3 years ago

Can someone solve this?

Mathematics

1 answer:

gayaneshka [121]3 years ago

6 0

Step-by-step explanation:

you would take 45 and divide it by 3 which would give you what one witch = 15

take 21 divide it by 3 which gives you one wand =7

take the brooms and divide it 12 by 3 one broom = 3

then take the wand(15) and multiply is but the wand (7) =105

take 105 and add the broom too it(4) = 109

so the answer is 109

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6.A = 23 × 3 × 5 B = 22 × 3 × 52

frez [133]

Given:

The two numbers are

$A=23\times 3\times 5$

$B=22\times 3\times 52$

To find:

The highest common factor (HCF) of A and B

Solution:

We have,

$A=23\times 3\times 5$ ...(i)

$B=22\times 3\times 52$

All the factors of A are prime but the factors of B are not prime. So, it can be written as

$B=2\times 11\times 3\times 13\times 2\times 2$ ...(ii)

From (i) and (ii), it is clear that 3 is the only common factor of A and B. So,

$HCF(A,B) = 3$

Therefore, the highest common factor (HCF) of A and B is 3.

6 0

2 years ago

Solve<br> x2 - 8x + 14 = 2x - 7

BabaBlast [244]

Answer:

x=7, x=3

Step-by-step explanation:

$x^{2} -8x+14=2x-7$

$x^{2} -8x-2x+14+7=0$

$x^{2} -10x+21=0$

$\mathrm{For\:a\:quadratic\:equation\:of\:the\:form\:}ax^2+bx+c=0\mathrm{\:the\:solutions\:are\:}$

$x=$ $\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

positive

$x=\frac{-\left(-10\right)+\sqrt{\left(-10\right)^2-4\cdot \:1\cdot \:21}}{2\cdot \:1}$

$x=7$

negative

$x=\frac{-\left(-10\right)-\sqrt{\left(-10\right)^2-4\cdot \:1\cdot \:21}}{2\cdot \:1}$

$x=3$

7 0

3 years ago

When does a sequence and series become an arithmetic sequence and arithmetic series?

maria [59]

Answer:

An arithmetic sequence is a sequence of numbers in which the difference between the consecutive terms is constant.

4 0

2 years ago

Write the equations of the following two sequences in "first term" form

mario62 [17]

A) Y = 100/10^x

B) Y = 0-50x

7 0

2 years ago

Read 2 more answers

Need the answer ASAP

Evgesh-ka [11]

Anwser:

22.5 or 5/22 or 30

Step-by-step Explanation:

-2 and -2
SSS
-2+-2= -4

-4 x 30= -120

-120 divided by 4 is 30
but that’s not a fraction so you do

22.5 or 5/22

-2 x -2 x 30=

7 0

2 years ago

Can someone solve this?​

Can someone solve this?