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
Effectus [21]
2 years ago
6

Try Again

Mathematics
1 answer:
alina1380 [7]2 years ago
7 0

Answer:

36 years

Step-by-step explanation:

Let

x = Elga's age

Alvin's age = x + 7

Sum of their ages = 79

Sum of their ages = Alvin's age + Elga's age

79 = (x + 7) + x

79 = x + 7 + x

79 = 2x + 7

79 - 7 = 2x

72 = 2x

x = 72/2

x = 36

Elga's age = x = 36 years

Alvin's age = x + 7

= 36 + 7

= 43 years

You might be interested in
Color
Anit [1.1K]

Answer:

Yellow.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes. Experimental probability is found taking into account previous experiments.

In this question:

6 + 5 + 4 + 10 = 25 total marbles.

The experimental probabilities are:

6/25 probability it is red.

5/25 = 1/5 probability it is yellow. Thus, the answer is yellow.

4/25 probability it is blue.

10/25 = 2/5 probability it is green.

5 0
2 years ago
Fractions closer to 0 than to 1
bija089 [108]
1 1/1 is the fraction, because ...........
4 0
3 years ago
Suppose f(x) is continuous on [2,8] and −4≤f′(x)≤5 for all x in (2,8). Use the Mean Value Theorem to estimate f(8)−f(2).
bazaltina [42]
<span>2≤x≤8</span> <span>−4≤<span>f′</span>(x)≤5</span> f is continuous in differentable on [2,8] so we know there is c btw 2 and 8 such that <span><span>f′</span>(c)=<span><span>f(8)−f(2)</span><span>/8−2</span></span></span> And we know <span>−4≤<span>f′</span>(c)≤5</span> => we have <span>−4≤ <span><span>f(8)−f(2)</span><span>/8−2</span></span> ≤<span>5</span></span>
6 0
3 years ago
Solve 4(x + 1) = 4x + 4. Would it be No solution? Or all real numbers?
arsen [322]
Pick any number. Write it in place of 'x'. If the result is a true statement, then your number is a solution of the equation. Do it again with a different number. Then do it again. Does it matter what your number is ?
7 0
3 years ago
Find the perimeter of the sector. With an angle of 110 degrees and a radius of 8
Vlad [161]

Answer:

49 / 9π + 16

Step-by-step explanation:

So 110 / 360 = 11 / 36

The circumference of the circle is 16π

11 / 36 * 16 = 44 / 9π

44 / 9π + 8 + 8 is the answer since you gotta add the sides.

This might be wrong so check my steps.

6 0
3 years ago
Other questions:
  • The perimeter of a regular hexagon is 42a + 18.
    13·1 answer
  • Solve m+2/3=1/2. I really need help!!
    5·1 answer
  • Tarzan travels 33 miles per hour. How long does it take him to travel
    13·1 answer
  • 10 as a standard notation
    14·1 answer
  • What is 12 divided by 1/2?o
    7·2 answers
  • Simplify, using the distributive property and then combining like terms.<br><br> 5(3a+b)−2(3a+b)
    13·2 answers
  • Determine if biconditional is true. <br> A) Felipe is a swimmer if and only if he is an athlete.
    7·1 answer
  • Find the missing angle ACB.<br> A. 90°<br> B. 70°<br> C. 45°<br> D. 40<br> E. 20°
    8·1 answer
  • Match the vocabulary word with the correct definition.
    9·2 answers
  • Find the area of each circle. Round to the nearest tenth.
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!