Trinitileday Trinitileday
  • 01-10-2020
  • Mathematics
contestada

the sum.of twice a number and half the number is 10

Respuesta :

Ivanita170
Ivanita170 Ivanita170
  • 01-10-2020
We start with “a number” — call it x, or maybe n — and work outward.

We have “twice a number”: 2
2
n

We have “half the number”: 12
1
2
n
, or 2
n
2

We have “the sum of” [the preceding two expressions]: 2+12
2
n
+
1
2
n

Aaand “is 10”: =10
=
10

Put it all together, and we get: 2+12=10
2
n
+
1
2
n
=
10

⟹2.5=10⟹=4
I hope it works
Answer Link

Otras preguntas

Factor the expression over the complex numbers. x^2+50
Read these sentences from the passage:The sky above the high plateaus of Arizona fills with a blazing ball of fire. The air thins, and the ground trembles.Dayli
How many kilojoules are equivalent to 959.6 calories
Which of the following is a value shared by Puritans? A. Religious tolerance B. Hard work and stable families C. Freedom for all people D. Equal rights for wome
Someone please help me
What is closest in meaning to "aesthetic" values?
Read the lines from "To His Excellency General Washington," and then answer the question. "Fix'd are the eyes of nations on the scales, For in their hopes Co
Bacteria in a pond multiplies as shown in the table. If a fungus on a tree decays at half that rate, what is the rate of decay (round to the nearest integer)?th
What is a 96% confidence interval for the proportion of weight-lifting injuries in this age group that were accidental?
Draw the structure(s) of the product(s) you would expect when this ether is cleaved with hi.