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]
4 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]4 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
Need help I don't get it. Which point is an exact solution to the system y = -6(0.75)^x and y = 4(x - 1)?
earnstyle [38]
Answer (-1 , -8)

-----------------------------------
Check Equation -6(0.75)ˣ
-----------------------------------
when x = -1
y = -6(0.75)⁻¹
y = -6(4/3)
y = -8

When x = -1, y = -8, therefore this equation passes through (-1, -8)

-----------------------------------
Check Equation y = 4(x - 1)
-----------------------------------
When x = -1 
y = 4( - 1 -1)
y = 4(-2)
y = -8

When x = -1, y = -8, therefore this equation passes through (-1, -8)

-----------------------------------
Answer (B): (- 1, -8)
-----------------------------------

4 0
3 years ago
How many numbers between 1 and 200 are evenly divisible by 7?
andrew11 [14]

Answer: 28

Step-by-step explanation: there are 28 multiples of 7 up to 200

7 0
3 years ago
Making the assumption of no compounding interest, suppose you purchase a perpetuity bond from Sense/Net Corporation for $4,000 w
natali 33 [55]

Answer:

$120

Explanation:

Data provided as per the given question below:-

Investment = $4,000

Coupon rate in percentage = 3%

The computation of yearly return is shown below:-

Yearly return = Investment × Coupon rate in percentage

= $4,000 × 3%

= $120

Therefore for computing the yearly return we simply investment with coupon rate in percentage.

3 0
3 years ago
What does 6 T=-------------lb
Lana71 [14]
So,

I'm assuming you are asking:
6 tons = x lbs.

The conversion from tons to pounds is:
1 ton = 2000 lbs.

So:
6 tons = 2000 * 6 = 12,000 lbs.
4 0
3 years ago
Read 2 more answers
I need help finding 'x'
WITCHER [35]
(8x-10)°+(6x)°+(10x+10)°=360°
8x-10+6x+10x+10=360
8x+6x+10x-10+10=360
24x-10+10=360
24x=360
24x/24=360/24
x=15
Scalene because all three sides are different.
8 0
3 years ago
Other questions:
  • What is the answer for number 4?
    6·2 answers
  • The value of 1 in 375,081 is 10
    8·2 answers
  • What is 3 and three tenths divided by 4 and two ninths
    14·1 answer
  • X+8=-2 I think its -10 but plz verify
    14·1 answer
  • You are given the system of equations to solve by the elimination method, which is an INCORRECT step that will NOT produce a sys
    6·1 answer
  • Please help! Will Mark brainliest!
    9·1 answer
  • dilan bought a table for Rs 3600. He sells it to Kirtim at a profit of Rs 205. Kritim sells it at Rs 4968 to Aayush. Find the pe
    5·1 answer
  • Read the poem excerpt. A backyard reality is rearranged. Hopscotch lines cower and hide, The toys in the yard . . . lost until s
    13·2 answers
  • Joy is making hand-painted ornaments for her family this year. Yesterday, she made 2 ornaments in 6 hours. This weekend, she pla
    12·1 answer
  • Sam runs 36 km in 2.5 hours, how many km does he run per hour
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!