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brilliants [131]
3 years ago
9

Which is a common denominator for the numbers: 40 and 28

Mathematics
1 answer:
Studentka2010 [4]3 years ago
4 0

Hi!

I can help you with joy!

Let's list 10 multiples of 40 and 10 multiples of 28.

The first 10 multiples of 40 are:

40, 80, 120, 160, 200, 240, 280, 320, 360, 400...

The first 10 multiples of 28 are:

28, 56, 84,112, 140, 168, 196, 224, 252, 280

I have highlighted it. Guess why!

Because it's the LCM (LEAST COMMON MULTIPLE) of 40 and 48.

*RosalindCordelia*

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Solve the system.<br> 2x + y = −3 −2y = 6 + 4x<br> Write each equation in slope-intercept form.
Fantom [35]

The slope-intercept form:

y = mx + b

m - slope

b - y-intercept

-------------------------------------

2x + y = -3       <em>subtract 2x from both sides</em>

y = -2x - 3


-2y = 6 + 4x

-2y = 4x + 6     <em>divide both sides by (-2)</em>

y = -2x - 3

We have the same equations. Therefore the system of equations is dependent. Has an infinite number of solutions

x ∈ R

y = -2x - 3

7 0
4 years ago
Read 2 more answers
Katherine wants to construct a small box with a volume of 20 cubic inches with the following specifications. The length of a box
pochemuha
V=LWH=20

L is 5 more than W
V=5+W

H is 1 less than W
H=-1+W

easy, sub 5+W for L and -1+W for H in LWH=V=20

20=(5+W)(W)(-1+W)
expand
20=W^3+4W^2-5W
minus 20 both sides
W^3+4W^2-5W-20=0
either factor or graph to find the possible values for W
(W+4)(W^2-5)=0
set each to zero

W+4=0
W=-4
impossible, measures cannot be negative
W^2-5=0
add 5
W^2=5
sqrt both sides
W=√5

sub back

L=5+W
L=5+√5
aprox
7.24 rounded

H=-1+W
H=-1+√5
aprox
1.24 rounded
the dimentions are
√5 by (5+√5) by (-1+√5) or aprox
2.24in by 7.24in by 1.24in
5 0
3 years ago
Read 2 more answers
Is 2/3 greater than 7/8
Alborosie
2/3 = 0.66
7/8 = 3.38

- 7/8 is bigger because if you convert each of the fractions into decimals you will find your answer

- I hope this helps
7 0
4 years ago
Read 2 more answers
Solve for x x + 6=18
Verizon [17]
X=12

This is because you subtract 6 from both sides to get the x isolated.

So x=18-6

x=12 :)
6 0
3 years ago
Can you please help me!
scZoUnD [109]

Answer:

it is 5/12

Step-by-step explanation:

5+5+5+5= 20

12+12+12+12=48

5 0
3 years ago
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