abigailmcarlson abigailmcarlson
  • 22-12-2021
  • Mathematics
contestada

Devaughn is 15 years younger than sydney. the sun of their ages is 63. what is sydney’s age?

Respuesta :

jen4755 jen4755
  • 22-12-2021

Answer:

39

Step-by-step explanation:

d = s - 15

d + s = 63

Replace d with s - 15

s - 15 + s = 63

2s -15 = 63

2s = 78

s = 39

Answer Link

Otras preguntas

If log 6=a, then log 600= ?
which of the following pairs does not fit the pattern shown by the other pairs? ( 1point ) A. amino acids,protein B. fatty acids , DNA C. glucose , starch D. ri
Which is an effective way to manage stress? Practice multitasking. Eat a high-protein diet. Keep an active calendar. Maintain a regular sleeping schedule.
Mr.Harris has 54.8 acres of land. Mr.Fitz has 0.35 times as many acres as Mr.Harris has.How many acres of land does Mr.Fitz have?
1. For which value of x is the expression log base 4 of (x+3) not defined? a. 0 b. -2 c. 3 d. -4 2. If log 7= a, what is the value of log 490 in terms of a? 3.
Mel's father asked Mel to mow his lawn while he was on vacation. Mel bought 1.6 gallons of gas for the lawn mower. The gas cost $2.85 per gallon. How much money
Cellular respiration generates a total of 36-38 ATP molecules. How many of these come solely from glycolysis? 15 ATP molecules 2 ATP molecules 30 ATP molecules
what is the fraction 14/49 in simplest form question 2 what is the 3 fractions equivalent to 12/5
which one of the following sentences contains an abstract noun? a. Logic is easily understood b. his skill was legendary c. the case was quite expensive d. th
Define the 2 properties of matter that determine its state