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Alex777 [14]
3 years ago
11

What’s a and b in these 3? 20 points + brainliest

Mathematics
2 answers:
anzhelika [568]3 years ago
4 0

Answer:

1) a 130° - (360 - (50×2)) /2

B 50° - opposite angles

2) a 25° - 90° - 65 = 25 °

B 270° - 360° - 90° = 270°

3) a ) 60° - 180° - 120° = 60° (there are 180° in a straight line)

B) 90° - 180°-90° = 90°

IceJOKER [234]3 years ago
4 0

Answer:

a.

a°=130

b°=50

b

a°=25

b°=270

c

a°=60

b°=90

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Amelia made 3 1/3 pounds of trail mix. If she puts 2/3 of a pound into each bag, how many bags can Amelia fill? Write your answe
Neporo4naja [7]

Answer:

6

Step-by-step explanation:

Because ⅔ goes into 3 ⅓ 6 times.

7 0
3 years ago
The perimeter of a shape is 25.71 cm calculate the value of the radius X takes pie to be 3.142
Mariulka [41]

Answer:

5 cm

Step-by-step explanation:

Given a semicircle with perimeter 25.71 cm, we are required to find the radius of the circle.

Circumference of a Semicircle

=Length of the Circular part+Length of the diameter

=\pi r+2r

If \: \pi=3.142, C=25.71\\Then:\\25.71=3.142r+2r\\r(3.142+2)=25.71\\5.142r=25.71\\r=25.71 \div5.142\\r=5cm

3 0
3 years ago
The monthly cost (in dollars) of a long-distance phone plan is a linear function of the total calling time (in minutes). The mon
kkurt [141]

The monthly cost will be $17.14

Step-by-step explanation:

Given that the monthly cost (in dollars) of a long-distance phone plan is a linear function of the total calling time (in minutes) then this can be presented in a table form as;

<u>Time in minutes (x)</u>        <u>Cost in dollars (y)</u>

50                                          $12.55

102                                         $ 17.23

Take the values as ordered pairs to represent coordinates for points that satisfy the linear function

(50,12.55)  and (102,17.23)

Finding the slope of the graph using these points

slope,m=Δy/Δx

m=Δy=17.23-12.55 =4.68

Δx=102-50=52

m=4.68/52 =0.09

Finding the equation of the linear function using m=0.09, and point (50,12.55)

m=Δy/Δx

0.09=y-12.55/x-50

0.09(x-50)=y-12.55

0.09x-4.5=y-12.55

0.09x-4.5+12.55=y

y=0.09x+8.05

So for 101 minutes , the cost will be;

y=0.09*101 +8.05

y=9.09+8.05 = $17.14

Learn More

Linear functions : brainly.com/question/11052356

Keyword : linear function

#LearnwithBrainly

5 0
3 years ago
At a pizza eating competition, Davonne ate four more than twice as many slices as the runner up. If Davonne ate 11 slices, then
Sauron [17]
Let's begin with x as the number of slices the runner up ate.
Davonne ate four more than twice
So the equation should look somewhat like this.
4+2x=11
2x=7
x=3.5
So the runner up ate 3.5 slices
<span>Davonne ate four more than twice as many slices as the runner up. If Davonne ate 11 slices, then how many slices did the runner up eat?</span>
3 0
3 years ago
Consider the number line with the plotted square roots.
ZanzabumX [31]

Answer: 19 Startroot and 24 endroot

Step-by-step explanation:

8 0
3 years ago
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