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
a_sh-v [17]
3 years ago
15

Elena and her grandfather both just had birthdays last week. The sum of their ages is 100 years. Her grandfather’s age is 4 time

s Elena’s age. How old are Elena and her grandfather?
Mathematics
1 answer:
ZanzabumX [31]3 years ago
4 0

Answer:

Grandfather age = 20 * 4 = 80

Step-by-step explanation:

Let Elena age be x

grandfather age is 4x

x + 4x = 100

5x = 100

x = 100/5 = 20 = Elena age

You might be interested in
What is the answer to this question?
Nitella [24]

Answer:

11x+2

Step-by-step explanation:

4 0
3 years ago
I need help on this math question !!!!
vichka [17]

D. Although I'm not 100% sure

4 0
3 years ago
Find the radian measure of the central angle of a circle of radius r​ = 60 inches that intercepts an arc of length s​ = 70 inche
Finger [1]

Step-by-step explanation:

s = rθ

70 in = (60 in) θ

θ = 7/6 radians

θ ≈ 1.167 radians

7 0
3 years ago
Please help! Look at the picture.
monitta

Answer:

Step-by-step explanation:

(27)^(-1/3)   +  (32)^(-2/5)

1/3 + 1/4

4/12  + 3/12 = 7/12

8 0
3 years ago
How does the graph y=3^x compare to the graph y=3^-x
LUCKY_DIMON [66]

Answer:

Y = 3x^x is a graph that has exponential growth while y = 3^-x has exponential decay.

Y = 3x^x (-∞, 0) and (∞, ∞).

Y = 3x^-x (-∞, ∞) and (∞, 0).

Step-by-step explanation:

The infinity symbols were being used to represent the x and y values of each graph. I will call y = 3^x "graph 1" and y = 3^-x "graph 2".

When graph 1 had positive ∞ for its x value, its y value was reaching towards positive ∞. When its x was reaching for negative ∞, its y was going for 0.

For graph 2, however, when its x was reaching for positive ∞, its x was reaching for 0. When its x was reaching for negative ∞, its y was going for positive ∞.

Here's an image of the graphs:

5 0
3 years ago
Other questions:
  • What is the solution for <br> x+y&gt;2<br> 2x-y&gt;1
    7·1 answer
  • <img src="https://tex.z-dn.net/?f=3x%20-%202%20%5Cdiv%206x%20%5E%7B2%7D%20%20%2B%2011%20%5E%7B2%7D%20%20-%204x%20-%204" id="TexF
    11·1 answer
  • Write one problem using a dollar amputated of $420 and a percent of40% provide the solution to your problem
    9·1 answer
  • How much would $300 invested at 4% interest compounded continuously be worth after 8 years?
    7·1 answer
  • Write the word sentence as an equation. Then solve.
    13·2 answers
  • The volume vv of a pyramid is given by the formula v=13bhv=13bh, where bb is the area of the base and hh is the height.
    13·1 answer
  • JOSIE MAKES FRUIT PUNCH BY MIXING FRUIT JUICE AND LEMONADE IN THE RATIO 1:3 SHE NEEDS 24 LITRES OF PUNCH FOR A PARTY
    8·1 answer
  • Part A: are they all right?
    15·1 answer
  • Question 11 of 25
    8·1 answer
  • Please help urgently ​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!