cassandrad21 cassandrad21
  • 02-12-2019
  • Mathematics
contestada

One number is seven more than twice another . If their sum is decreased my ten the result is twelve. Find the numbers

Respuesta :

DaGreatPotato DaGreatPotato
  • 02-12-2019

Answer:

5, 17

Step-by-step explanation:

For this problem, you need to create a system of equations.

We can name one number x and the other y.

First equation: 2x + 7 = y

Second equation: x + y - 10 = 12, or x + y = 22.

We know y = 2x + 7, so we can substitute that into the second equation.

x + 2x + 7 = 22.

3x = 15

x = 5.

Plug x back into the first equation:

2 · 5 + 7 = y.

y = 10 + 7

y = 17.

Answer Link

Otras preguntas

Is letter a part of correspondence?​
Someone help ASAP pls!! I will mark you the brainlist!!
¿Qué significa "homo"? *
pls help in the middle of my final lol
true or false The Bill of Rights was part of the original Constitution.
14 Select the correct answer from each drop-down menu. Which words or phrases best complete the paragraph? In William Golding's novel Lord of the Flies, the cha
Translate sentence into an inequality. The difference of twice a number and 2 is less than -22.
A sample of a gas has a volume of 1.5L at 150K. If the gas is heated to 235K at constant pressure, what will its final volume be
Which genotype has a 50% chance of being inherited
What kind of chemical bond exists between two nitrogen atoms to form nitrogen gas? Is this a strong or weak bond? When a chemical bond is formed, is energy abso