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4 years ago

Find the value of x in the figure A. 40* B. 50* C. 140* D. 180 Please help me

Mathematics

1 answer:

Talja [164]4 years ago

4 0

Answer:

40 degrees

Step-by-step explanation:

x and 40 (degrees) are "vertical angles" and are thus equal. So x = 40 degrees.

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Pls help fast i need help

LiRa [457]

The first answer is -15-20x.
The second answer is -42b-21.
Ask in the comments section if you want me to explain, other than combining like terms and using the distributive property. I hope this helps!

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3 years ago

Read 2 more answers

A metallurgist is designing an experiment to determine the effect of flux, base metal, and energy input on the hardness of a wel

Anastasy [175]

Answer: 24

Step-by-step explanation:

Given : A metallurgist wants to study four different fluxes, two different base metals, and three different amounts of energy input.

i.e. 4 different choices for fluxes.

2 different choices for base metals.

3 different choices for amounts of energy input.

If each run of the experiment involves a choice of one flux, one base metal, and one amount of energy input.

Then , the number of runs are possible :-

$4\times2\times3=24$

Hence, there are 24 different runs are possible .

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4 years ago

Chuck and Dana agree to meet in Chicago for the weekend. Chuck travels 252 miles in the same time that Dana travels 228 miles. I

vlada-n [284]

Answer:

Chuck's rate of travel = 63mph

Step-by-step explanation:

Given chuck travels 252 miles and dana travels 228 miles. Given that they both take same time to travel .

Let the travelling time be T.

Also given that the speed of chuck is 6mph greater than that of dana's.

let the speed of chuck be x. Now

Speed = $\frac{distance }{time}$

x= $\frac{252}{T}$

Now for Dana's speed

x-6= $\frac{228}{T}$

When we divide both the equations we get

$\frac{x}{x-6}=\frac{252}{228}$

$\frac{x}{x-6}=\frac{63}{57}$

x=63mph

7 0

3 years ago

Read 2 more answers

HELPPP!!!!Which of the following describes the graph y=[x-2]?

notsponge [240]

The answer is A :The graph has closed circles on the left of the step and open circles on the right and includes the step

8 0

3 years ago

Mary McDonald makes mugs in Miami. She makes two sizes of mugs: a small mug that she sells for $2.50 and a large mug that she se

IrinaVladis [17]

Mary McDonald sold 11 small mugs and 10 large mugs.

Step-by-step explanation:

Given,

Total cost of sold cups = $85

Cost of one small cup = $2.50

Cost of one large cup = $5.75

Cups at the start of day = 215

Cups at the end of day = 194

Cups sold = Cups at the start of day - Cups at end of day

Cups sold = 215 - 194 = 21

Let,

x represents the number of small cups.

y represents the number of large cups.

According to given statement;

x+y=21 Eqn 1

2.50x+5.75y=85 Eqn 2

Multiplying Eqn 1 by 2.50

$2.50(x+y=21)\\2.50x+2.50y=52.50\ \ \ Eqn\ 3$

Subtracting Eqn 3 from Eqn 2

$(2.50x+5.75y)-(2.50x+2.50y)=85-52.50\\2.50x+5.75y-2.50x-2.50y=32.50\\3.25y=32.50$

Dividing both sides by 3.25

$\frac{3.25y}{3.25}=\frac{32.50}{3.25}\\y=10$

Putting in Eqn 1

$x+10=21\\x=21-10\\x=11$

Mary McDonald sold 11 small mugs and 10 large mugs.

Keywords: linear equation, subtraction

Learn more about linear equations at:

#LearnwithBrainly

7 0

3 years ago