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Lady_Fox [76]
3 years ago
13

(4 lb 10 oz )+ (4 lb 15 oz) = ?lb ?oz

Mathematics
2 answers:
Diano4ka-milaya [45]3 years ago
7 0

Answer:

8lb 25oz or 9lb 9oz

Step-by-step explanation:

(4lb 10oz) + ( 4lb 15oz) Combine like terms

(8lb 25oz) Simplify

(9lb 9oz)

lukranit [14]3 years ago
5 0
Answer: 8lb and 25oz

I am right
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sattari [20]

Answer:

m= - 4

Step-by-step explanation:

3 0
3 years ago
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Solve the following equations express your answers as order pair in format a,b 2x+7y=-1 and 4x-3y=-19
Ksivusya [100]

Answer:

(x , y) = ( -4 , 1)

Step-by-step explanation:

2x + 7y = -1 --------eqn 1

4x - 3y = -19 ----------eqn 2

Step 1: let's pick eqn 1, to make y the subject of the formula

2x + 7y = -1

7y = -1 - 2x

Divide both sides by 7, to make y the subject of the formula

7y/7 = (-1 - 2x)/7

y = (-1 - 2x) / 7

Step 2: substitute y into the equation 2

4x - 3y = -19

4x - 3(-1 - 2x)/7 = -19

Open the bracket

-3 * -1 = +3

-3 * -2x = +6x

4x +( 3 + 6x)/7 = -19

LCM = 7

(28x + 3 + 6x)/7 = -19

(34x + 3)/7 = -19

Cross multiply

34x + 3 = 7 * -19

34x + 3 = -133

34x = -133 - 3

34x = -136

Divide both sides by 34,to get the value of x

34x/34 = -136/34

x = -4

Step 3: substitute x = -4 into eqn 1

2x + 7y = -1

2(-4) + 7y = -1

-8 + 7y = -1

7y = -1 + 8

7y = 7

Divide both sides by 7, to the value of y

7y/7 = 7/7

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3 0
3 years ago
What is the value of x in the equation below?
Nutka1998 [239]

Answer:

B) x = -12

Step-by-step explanation:

[Given] -2.5(x-4) = -3x + 4

[Distibute] -2.5x + 10 = -3x + 4

[Subtract 4 from both sides] -2.5x + 6 = -3x

[Add 2.5x to both sides] 6 = -0.5x

[Divide both sides by -0.5] -12 = x

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

4 0
2 years ago
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Length of the hypotenuse of the triangle to the nearest tenth of a metre
Lemur [1.5K]

Answer:

The length of the hypotenuse is 2.4m

Step-by-step explanation:

well to start we have to know the relationship between angles, legs and the hypotenuse

α = 55°

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h: hypotenuse

sin α = o/h

cos α= a/h

tan α = o/a

we see that it has (angle, hypotenuse, opposite)

we look at which meets those data between the sine, cosine and tangent

is the sine

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Now we replace the values ​​and solve

sin 55 = 2.0/h

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h = 2.0 / 0.81915

h = 2.4415 m

round to the nearest tenth

h = 2.4415 = 2.4 m

The length of the hypotenuse is 2.4m

5 0
4 years ago
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A new car is purchased for $18,000 and over time its value depreciates by one half
iogann1982 [59]
15.1

hope this helps :)
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3 years ago
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