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
Vera_Pavlovna [14]
3 years ago
6

Sally is three times as old as Sam. The sum of their ages is 84. How old is Sally?

Mathematics
1 answer:
Pepsi [2]3 years ago
4 0

Answer:

Sally is 63

Step-by-step explanation:

Represent Sally's age by x and Sam's by  y.

Then x = 3y and x + y = 84.

Substituting 3y for x in the second equation, we get:

3y + y = 84, or 4y = 84, or y = 21.  Since Sally is 3 times as old as Sam, we multiply 21 by 3:  Sally's age is 3(21 years) = 63 years

You might be interested in
Geometry peculiar pool
saw5 [17]

Answer:

hi.

Step-by-step explanation:

download photo math

5 0
3 years ago
1. a) A car travels at a constant speed. Fill in the table to show how far it travels during different time periods. Time (h) 1
Mandarinka [93]

Answer:

  1. debes de sacar todos tus respuestas en inglés
  2. Si tú no saca las aplicaciones de ahí nunca vas a poder sacar
  3. saca de clover Sat

Step-by-step explanation:

saca degloving

8 0
3 years ago
The function h(t) = −16t2 + 18t models the height, in feet, reached by a leopard t seconds after it jumps. What is the approxima
S_A_V [24]

9514 1404 393

Answer:

  5 1/16 ft

Step-by-step explanation:

  h(t) = -16t(t -18/16) . . . . put in intercept form

The function describes a parabola that opens downward. It has zeros at t=0 and t=9/8. The maximum height will be found at the vertex of the parabola, halfway between these zeros.

  f(9/16) = (-16)(9/16)² +18(9/16) = 81/16 = 5 1/16 . . . . feet

The approximate maximum height of the leopard is 5 1/16 feet.

5 0
3 years ago
Which expression is equivalent to 8x - 12y +32
prisoha [69]

The answer is shown above

6 0
3 years ago
Read 2 more answers
How to dilate the figure by the scale factory?<br>​
Artyom0805 [142]

Answer:

Starting with ΔABC, draw the dilation image of the triangle with a center at the origin and a scale factor of two. Notice that every coordinate of the original triangle has been multiplied by the scale factor (x2). Dilations involve multiplication! Dilation with scale factor 2, multiply by 2.

4 0
2 years ago
Other questions:
  • your friend rent 10chairs and 2 tables for $300. another friend rent 8 chairs and 4 tables for $360 you want to rent 12 chairs a
    14·1 answer
  • Can someone help me please???
    14·1 answer
  • What is 78/126 in simplest form
    5·1 answer
  • HELP! I NEED HELP ASAP
    5·2 answers
  • Need help asap <br> will give brainly
    12·2 answers
  • Please show your work I’m trying to learn 35.60 x 2.07
    7·2 answers
  • Can somebody please help...I don’t understand it would mean a lot ❤️
    5·2 answers
  • What is the constant of proportionality?
    14·1 answer
  • Sally can type 100 words per minute while David can type 200 words per minute. Given these numbers, society would be better off
    5·1 answer
  • I WILL CHOOSE BRAINLIEST!!!
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!