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
ipn [44]
3 years ago
11

Which expression is equivalent

Mathematics
1 answer:
choli [55]3 years ago
5 0
The first equation is equal to the one in the question.
You might be interested in
On discovering that her family had a 70% risk of heart attack, Erin took a treadmill test to check her own potential of having a
astra-53 [7]
The answer is .469  its just simply both percentages as percents multiplied together so .7*.67= .469
8 0
3 years ago
Read 2 more answers
A streetlight that is 10 feet tall casts a 2.5-foot-long shadow. A nearby flagpole casts a 7.5-foot-long shadow. What is the hei
zhenek [66]

Answer: 30 feet

Step-by-step explanation:

10 / 2.5 = 4

7.5 * 4 = 30

6 0
2 years ago
What is the best first step for solving the given system using substitution while avoiding fractions? =9x+4x=10 -9x+3y=3
aivan3 [116]

Answer:

  Solve for y in the second equation

Step-by-step explanation:

We assume your system is ...

  • -9x +4y = 10
  • -9x +3y = 3

Dividing <em>the </em><em>second equation</em> by 3 gives ...

  -3x +y = 1

so an expression for y without fractions can be found by <em>solving for y</em>, that is, by adding 3x:

  y = 3x +1

_____

<em>Comment on alternate solution</em>

We'd be tempted to solve the first equation for -9x and substitute for that.

  -9x = 10 -4y

  (10 -4y) +3y = 3 . . . . . substitute for -9x

  -y = -7 . . . . . . . . . . . . . simplify, subtract 10

  y = 7 . . . . . . . . . . . . . . multiply by -1

3 0
3 years ago
Read 2 more answers
The sum of a number and 6 is greater than 76 write an inequality
IrinaVladis [17]

Answer:

x+6>76

Step-by-step explanation:

sum is adding

greater than is >

6 0
2 years ago
2y + 2x + 3y + 4z + 5x​
IRISSAK [1]
5y+7x+4z this is the simplified answer .
6 0
2 years ago
Other questions:
  • Does anyone understand how to solve this?
    6·1 answer
  • How do I add and subtract unlike fractions
    5·2 answers
  • Найдите корни уранения |t|:6=4
    6·1 answer
  • At a track samma finished the 200m race in 25.98 seconds.Tom finished the 100 meters race in 12.58 seconds.Which runner ran at t
    5·1 answer
  • A field test for a new exam was given to randomly selected seniors. The exams were graded, and the sample mean and sample standa
    8·1 answer
  • Which of the following is true about a parallelogram?
    9·1 answer
  • A display case of video games is marked 1 for $12. If Erin has $216, how many video games can Erin get? (Assume no tax or other
    8·2 answers
  • The sum of 7 2/9 and 2 7/9 in the simplest form is
    6·1 answer
  • Find the slope of the line passing through the points (5, 7) and (5, -9)​
    9·1 answer
  • What is the scale factor???
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!