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jeka57 [31]
3 years ago
5

What is m in the simultaneous equation M -n=1 M+n=3

Mathematics
2 answers:
Lady bird [3.3K]3 years ago
8 0
The simultaneous equations is missing +8
Nady [450]3 years ago
6 0

Answer:

m is 2

Step-by-step explanation:

If you add the two equations together you get

2m=4

m=2

Plug this value in for m to solve for n

2-n=1

-n= -1

n=1

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Kenji buys 3 yards of fabric for $7.47 then he realizes that he needs 2 more yards how much would the extra fabric cost
Andrew [12]
3 yards = $7.47
1 yard = $(7.47 ÷ 3) = $2.29
2 yards = $ (2.29 × 2) = $5.58
$ (7.47 + 5.58) = $ 13.05
8 0
4 years ago
Read 2 more answers
X - y = -5 x - y = 1/3 substitution method​
allsm [11]

Answer:

x = -5

y = 0

Step-by-step explanation:

x-y = -5 -----eqn 1

x-y = 1/3 ------eqn 2

From eqn 1

x-y = -5

x = -5 + y -----eqn 3

From eqn 1

-5+y-y = -5

y = 0

Eqn 3

x = -5 + 0

x = -5

4 0
4 years ago
What is the length of AB
Anettt [7]

Answer:

\boxed{\boxed{\overline{AB}=16}}

Step-by-step explanation:

In the triangle ABC, m∠ABC=90°. Hence, it is right angle triangle.

\tan \theta=\dfrac{p}{b}=\dfrac{AB}{64}  --------1

In the triangle ABD, m∠ABD=90°. Hence, it is right angle triangle.

\cot (90-\theta)=\dfrac{b}{p}=\dfrac{4}{AB}

As \cot (90-\theta)=\tan \theta, so

\tan \theta=\dfrac{b}{p}=\dfrac{4}{AB}  ---------2

From equation 1 and 2,

\Rightarrow \dfrac{AB}{64}=\dfrac{4}{AB}

\Rightarrow AB^2=64\times 4

\Rightarrow AB^2=256

\Rightarrow AB=\sqrt{256}

\Rightarrow AB=16


5 0
3 years ago
write an equation in point slope form of the line that passes through the point (-3,6) and has a slope of 5
quester [9]

Answer:

y=5x+6

Step-by-step explanation:

use the equation y=mx+b

m=slope and b=y-intercept

You can go ahead and insert 5 into the equation because we know that the slope of the line is 5. for b. the y-intercept, we know that points are in (x,y) form so we can infer that -3 is the x and 6 is the y. from here you can plug in the number 6 for b and there's your equation. hope this helps!!

7 0
4 years ago
Your utility expense grew from $233 to $267. In the same period, your staffing expense grew from $1,266 to $1,411. Which expense
jeyben [28]

Increase in utilities = 267 - 233 = 34

For $233, increase = $34

For $100, increase = \frac{34}{233} (100)

= 14.59%

Increase in staffing expense = 1411 - 1266 = 145

For $1266, increase = $145

For $100, increase = \frac{145}{1266} (100)

=11.45%

Hence, utilities had the higher percentage growth rate.

8 0
4 years ago
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