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2 years ago

Help me in number 7 8 9 10 11 12 13 14

Mathematics

2 answers:

Zanzabum2 years ago

8 0

For number 7, you need to find out what number was multiplied by 5 to get 15, which would be 3. So, you multiply the numerator by 3 as well and you will have the missing number.
2/5=6/15

The least common multiple of two numbers is the smallest number that is a multiple of both numbers, that is not zero.
So, you need to find the smallest number that both 14 and 18 can be divided by.
The answer would be 126.

9 goes into 36 4 times, because 9x4=36. Because of this, you multiply the numerator by 4 as well. 4x5=20.
So, 5/9=20/36

The least common multiple of 5 and 10 would be 10, obviously. It isn't zero, and both 5 and 10 can be divided by 10.

The least common multiple of 42 and 36 is 252.

Three common multiples of 5 and 6. Look at the choices and choose the one where all three numbers can be divided by both 5 and 6.
30/6=5 and 30/5=6, 60/5=12 and 60/6=10, 90/5=18 and 90/6=15.
So, the answer is choice B.

The least common multiple of 30 and 60 is 60. 30 is half of 60, so we already know that 60 can be divided by 30. 60 can be divided by itself as well.

Well, divide each new denominator by 14, and then multiply that number by 9. If the number you get matches the numerator in the choice's fraction, then you found your answer.

Marina CMI [18]2 years ago

3 0

7 is A 8 is A 9 is D 10 is A 11 is

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HELP DUE in 20 MIN<br> m∠16 =

Ierofanga [76]

9514 1404 393

Answer:

∠16 = 47°

Step-by-step explanation:

Vertical and corresponding angles are congruent. The remainder are supplementary to those.

∠1≅∠4≅∠5≅∠7≅∠10≅∠12≅∠13≅∠15 = 133°

∠2≅∠3≅∠6≅∠8≅∠9≅∠11≅∠14≅∠16 = 47°

8 0

1 year ago

There are two numbers whose sum is 64. The larger number subtracted from 4 times the smaller number gives 31. Find the numbers.

Pani-rosa [81]

There are two numbers whose sum is 64. The larger number subtracted from 4 times the smaller number gives 31. Then the numbers are 45 and 19

<h3><u>Solution:</u></h3>

Given that, There are two numbers whose sum is 64.

Let the number be a and b in which a is bigger.

Then, a + b = 64 ------ eqn (1)

The larger number subtracted from 4 times the smaller number gives 31.

4 x b – a = 31

4b – a = 31 ----- eqn (2)

We have to find the numbers.

So, from eqn (2)

a = 4b – 31

Subatitute a in (1)

4b – 31 + b = 64

On solving we get

5b = 64 + 31

5b = 95

b = 19

So, b = 19, then eqn 1

a + 19 = 64

On simplification,

a = 64 – 19

a = 45

Hence, the two numbers are 45 and 19

3 0

2 years ago

What number is the opposite of 90?

zloy xaker [14]

Answer:

-90

Step-by-step explanation:

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2 years ago

-16 + x = -15<br><br> CAN SOMEONE HELP ME PLEASE

Maksim231197 [3]

Answer: x= 1

Step-by-step explanation: Look at pic down below.

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2 years ago

Jamal is making two paintings using canvases that are similar rectangles. The length of the smaller canvas is 3 ft and the width

Alex787 [66]

Let's start with what we know:

Smaller canvas:
Length ( $L_{1}$ ) = 3ft
Width ( $W_{1}$ ) = 5ft

Larger canvas:
Length ( $L_{2}$ ) = ?
Width ( $W_{2}$ ) = 10ft

Since these are similar rectangles, we can cross-multiply to calculate the missing length. Here's that formula:

$\frac{ L_{1} }{ L_{2} } = \frac{ W_{1} }{ W_{2} }$
So let's plug it all in from above:

$\frac{ 3 }{ L_{2} } = \frac{ 5 }{ 10 }$
Now we cross multiply by multiplying the top-left by the bottom-right and vice versa:

$(3)(10) = (5)(L_{2})$
$30 = 5L_{2}$
Now divide each side by 5 to isolate $L_{2}$

$\frac{30}{5} = \frac{ 5L_{2}}{5}$
The 5s on the right cancel out, leaving us with:

$6 = L_{2}$

So the length of the larger canvas is 6 ft

4 0

2 years ago

Read 2 more answers