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
enot [183]
2 years ago
10

Sandra took 4 tests in math and her mean score was 18. I she scored 18, 22, and

Mathematics
1 answer:
Salsk061 [2.6K]2 years ago
7 0

Answer:

15

Step-by-step explanation:

(18+22+17+x)/4=18

18+22+17+x=18×4

57+x=72

x=72-57

x=15

You might be interested in
BRAINLIEST ON THE LINE INFO IN PHOTO BELOW
victus00 [196]

Answer:

32 days is my final answer

Step-by-step explanation:

6 0
3 years ago
38. What is the surface area of a conical grain storage tank that has a height of 62 meters and a diameter of 24 meters? Round t
svetoff [14.1K]
1. The surface area of a cone S is S= \pi  r^{2}+  \pi rl, where r is the radius of the base and l is the slant height.

2. The slant height l is found as follows:

l^{2}= OC^{2}+ OB^{2}
l^{2}= 12^{2}+ 62^{2}=144+3844=3988

l= \sqrt{3988}=63.15

3. 

A=\pi r^{2}+ \pi rl=3.14(12)^{2}+3.14*12*63.15

= 452.16+2379.492 =2831.652 ( m^{2} )

 = 452.16+2379.492 =2831.652 ( m^{2} )

4. The answer is C

8 0
3 years ago
Read 2 more answers
5+68empty space, 5, plus, 68 =(3+=(3+equals, left parenthesis, 3, plus 5 )+ 68)+68right parenthesis, plus, 68 =3 + (=3+(equals,
hoa [83]

Answer:

Give me and example

Step-by-step explanation:

6 0
3 years ago
-16x - y = -16<br> 12x + 6y = 12<br> How may solutions
Luda [366]

Answer:

y=2x +1/2

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
At what point does a line with a slope of 34 and a y-intercept of -5 intersect a line with a slope of −14 and a y-intercept of 3
maw [93]
Set them into slope-intercept forms of equations then set those equations equal to each other and solve for x and y.  y = 34x - 5 and y = -14x+3.  Set those equal to each other, solve for x to get x = 1/6.  Sub in that x value to get y = 2/3.  The point where they intersect is the solution of the system; in other words, where on both lines we have the exact same (x, y) value.
4 0
3 years ago
Other questions:
  • What is the value of this expression when m=3 and n=-5 (6m^-1n^0)^-3
    10·2 answers
  • Leona has a bag containing letter tiles which describes dependent events?
    15·1 answer
  • Which of the following expressions represents "twelve diminished by six times a number"?
    13·1 answer
  • A cow gave 8 1 2 liters of milk in the morning, 3 5 liters less than this at the noon milking, and 6 3 10 liters in the evening.
    12·1 answer
  • Solve the equation and enter the value of x below.<br> x-12 = 8<br> X =
    13·2 answers
  • Write as quotient of powers.
    14·1 answer
  • Help me please i need this ASAP!!!!
    15·1 answer
  • Which of the following inequalities is the correct translation for the expression: “Three less than twice a number is greater th
    12·1 answer
  • Tamera is making a poster about cities in her state. She does not want to include information about cities with an elevation gre
    12·2 answers
  • 6. If sin = 0.8829, then the approximate measure of between 0° to 360° is _______
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!