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
Lynna [10]
3 years ago
10

315 + 6x = 90 + 15x can anyone help with this? please

Mathematics
1 answer:
mario62 [17]3 years ago
8 0

Answer:

315-90 = 15x-6x

225 = 9x

9x/225

x = 25

You might be interested in
X + 2y = 10
Crazy boy [7]

Answer:

(-12,11)

Step-by-step explanation:

x + 2y = 10

3x + 4y = 8

(-2)x + (-2)2y = (-2)10

3x    + 4y       = 8

-2x - 4y = -20

3x  + 4y = 8

Add to eliminate:

x = -12

Substitute x to solve y:

x + 2y = 10

(-12) + 2y = 10

-12 + 2y = 10

2y = 10 + 12

2y = 22

y = 22 ÷ 2

y = 11

Check:

x + 2y = 10

(-12) + 2(11) = 10

-12 + 22 = 10

10 = 10

8 0
3 years ago
Read 2 more answers
SOMEONE HELP ME PLEASE
yawa3891 [41]

Answer:

x=8

Step-by-step explanation:

the y-value in the first pair decreased by half, so the x-value must double due to inverse variation.

8 0
3 years ago
Factorise fully 12x³ - 30x²​
MariettaO [177]

Answer:

6x² (2x - 5)

Step-by-step explanation:

12x³ - 30x²

= 6x² (2x - 5)

5 0
2 years ago
Chris has decided to triple the amount of time he spends studying each night. If the data set that represents the number of minu
Kobotan [32]

Answer:

90,60,75,135,30,0,180

Step-by-step explanation:

Given : Chris has decided to triple the amount of time he spends studying each night

To Find: . If the data set that represents the number of minutes he had previously spent studying each night is 30, 20, 25, 45, 10, 0, 60, which data sets represents the number of minutes he will now spend studying.

Solution:

Previous Hours : 30,20,25, 45, 10, 0, 60

Now since she decided to triple the amount of time she spends :

So,

30*3=90

20*3=60

25*3=75

45*3=135

10*3=30

0*3=0

60*3=180

So, the new set of data is 90,60,75,135,30,0,180

3 0
3 years ago
Leonard spent 1/4 of his money on a sandwich. He spent 2 times as much on a gift for his brother as on some comic books. He had
Oksana_A [137]
It's probably 2/6
Because comic books are 2 dollars and since he bought a sandwich it's 2/6 because the sandwich is 6 dallors
8 0
3 years ago
Other questions:
  • Flora made 4 withdrawals of $80 each from her bank account. What was the overall change
    8·1 answer
  • Use the communitve property to find the unknown number in the equation 35×70 =m×35
    6·2 answers
  • What is the circumference of a dinner plate with a radious of 4.5 inches​
    7·1 answer
  • Start at six create a pattern that multiplies each number by three stop when you have four numbers
    7·1 answer
  • Name a linear pair.
    13·2 answers
  • Use the power-reducing formulas to rewrite each of the expressions in terms of the first power of the cosine. Sin^4cos^4
    15·1 answer
  • Sharla’s recipe for 4 servings of stew has 2 potatoes and 4 celery sticks. How many potatoes and celery sticks does she need to
    7·2 answers
  • 1.Eric earned a 12 correct points out of 15 total points on his math quiz.
    7·1 answer
  • 6x – 2х + 8у – 6y simplified expression
    11·2 answers
  • Graph the equation
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!