1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
tia_tia [17]
3 years ago
11

Help with question 1 plssssss

Mathematics
1 answer:
rodikova [14]3 years ago
5 0

its answer comes in point

Step-by-step explanation:

3a+5a+12=90

8a=90-12

8a=78

a=78/8

a=9.75

if it is wrong than tell me plzzz

You might be interested in
-9 - (18v - 5) = 2(7v - 16) - 3v​
andrezito [222]

Answer:

v = 28/29

Step-by-step explanation:

- 9 - (18v - 5) = 2(7v - 16) - 3v​

- 9 - 18v + 5 = 14v - 32 - 3v

- 18v - 14v + 3v = - 32 - 5 + 9

- 29v = - 28

v = -28 / -29

v = 28/29

6 0
3 years ago
PLEASE HELP FAST!!! 30 POINTS
Advocard [28]

Answer:

40 points

Step-by-step explanation:

8 0
3 years ago
the length of an arc of a circle is 1/5 of its circumference. if the area of the circle is346.5cm²,find the angle subtended by t
dexar [7]

Answer:

72°

Step-by-step explanation:

From the question,

Area of the circle = πr²

A = πr²................. Equation 1

Where r = radius of the circle.

⇒ r = √(A/π)............. Equation 2

Given: A = 346.5 cm², π = 3.14

r = √(346.5/3.14)

r = √(110.35)

r = 10.5 cm.

Therefore,

circumference of the circle = 2πr = 2×3.14×10.5

circumference = 65.94 m

If the length of the arc(s) is 1/5 of its circumference.

Therefore, length of arc (s) = 13.188

⇒ length of arc/circumference = 13.188/65.94 =  1/5

s/2πr = θ/360

Where θ = angle substends at the center of the circle

1/5 = θ/360

θ = 360/5

θ = 72°

3 0
3 years ago
POLS HELP ME NOWWWW I DONT UNDERSTAND IT
Leni [432]

Answer:

B

Step-by-step explanation:

using the equation 'y = 12x', if you plug in zero for 'x' you get zero for 'y'; the only graph that has the point (0, 0) is (b)

also, the x-axis represents time so, as time increases, so does the number of calories burned (which is measured on the y-axis) -- not staying flat or decreasing

5 0
3 years ago
If it takes 30 seconds to break 12 things how many things can you break in 1 minuet
garri49 [273]

Answer:

You can break 24 things

Step-by-step explanation:

One minute is 60 seconds, so all you have to do is double how many things you can break in 30 seconds

3 0
3 years ago
Read 2 more answers
Other questions:
  • HELPPPPP: The average high temperatures each month in Dallas, Texas are shown in the chart. What value represents the 3rd 3rd qu
    7·2 answers
  • “if there are 12 boys and 48 girls in a room, fill out all of the possible ratios of boys to girls that could be made.”
    13·1 answer
  • What is the solution set for | s/2 + 4| < 2
    15·1 answer
  • Simplify 3x²y³ over 12x⁶y
    12·1 answer
  • Multiple choices<br>Help me to finish this​
    5·1 answer
  • PlEASE HELP MEE!!!! THIS IS DUE IN LIKE 1 DAY PLZZ HELP!!!!!!
    5·1 answer
  • The intersection of two planes contains at least two points
    13·1 answer
  • 1.)Can you map shape I onto shape II by a sequence of transformations? If so, give a sequence of transformations that maps shape
    9·1 answer
  • The zigzag crystal vase has height 20 centimeters. The cross sections parallel to the base are always rectangles that are 12 cen
    5·1 answer
  • Systems requests do not deal with factors involved in improving service.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!