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
jasenka [17]
3 years ago
5

Please look at the picture. I answered b but it was incorrect. Please help.

Mathematics
1 answer:
LuckyWell [14K]3 years ago
6 0

9514 1404 393

Answer:

  d.  14 -3x

Step-by-step explanation:

If you want to substitute for y in the second equation, you must use the first equation to find an expression for y.

  3x +y = 14 . . . . . . first equation

  y = 14 -3x . . . . . .  subtract 3x from both sides

This gives you the expression for y that you want to use for substitution. It matches the expression of choice D.

  y = 14 -3x . . . . matches D

You might be interested in
4.5(8-x) + 36=102-2.5(3x+24)<br> what’s x?
maxonik [38]
Let's solve your equation step-by-step.<span><span><span>4.5<span>(8−x)</span></span>+36</span>=<span>102−<span>2.5<span>(<span>3x+24</span>)</span></span></span></span>Step 1: Simplify both sides of the equation.<span><span><span>4.5<span>(8−x)</span></span>+36</span>=<span>102−<span>2.5<span>(<span>3x+24</span>)</span></span></span></span>Simplify: (Show steps)<span><span><span>−4.5x</span>+72</span>=<span><span>−7.5x</span>+42</span></span>Step 2: Add 7.5x to both sides.<span><span><span><span>−4.5x</span>+72</span>+7.5x</span>=<span><span><span>−7.5x</span>+42</span>+7.5x</span></span><span><span>3x+72</span>=42</span>Step 3: Subtract 72 from both sides.<span><span><span>3x+72</span>−72</span>=42−72</span><span>3x=−30</span>Step 4: Divide both sides by 3.<span><span>3x3</span>=<span>−303</span></span><span>x=<span>−<span>10</span></span></span>
3 0
3 years ago
Read 2 more answers
Math Help Please?
hjlf
The median is 3 that's all I know
5 0
3 years ago
Read 2 more answers
Rewrite 1 / 6 barrels over 2 over 5 hours as a unit rate
Akimi4 [234]

Answer:

5/12 barrel/hour

Step-by-step explanation:

 Type this as a fraction:

  (1/6) barrel

--------------------

  (2/5) hours

Division by 2/5 is equivalent to multiplication by 5/2:

1                5

--- barrel * -------------- = 5/12 barrel/hour

6                2  hours

Alternatively, this problem could be done using decimal fractions:

0.1667 barrel

-------------------- = 0.416666 barrel/hour  =  5/12 barrel/hour

0.4 hours

5 0
3 years ago
Hello, this is math and I need help ❤️ pls and ty ONLY SERIOUS ANSWERS
Greeley [361]

The bicycle with a 30-inches diameter rolls approximately 28.8 more than a tire with the diameter with 21-inches.

<u><em>How to solve:</em></u>

  • First use the formula: C = 3.14d
  • Replace the d value with 30 and solve the equation:

C = 3.14 x 30    ⇒   94.2477796077

  • Then solve the equation again but 21 as the d value:

C = 3.14 x 21     ⇒   65.9734457254

  • Then subtract 65.9734457254 from 94.2477796077 to get the approx. answer of 28.8

3 0
2 years ago
Eldon Cavanaugh is paid a weekly salary of $562. How much would Eldon earn in 4 weeks of work?
Romashka-Z-Leto [24]

Answer:

2248

Step-by-step explanation:

Take the amount earned weekly and multiply by 4 weeks

562*4

2248

3 0
3 years ago
Read 2 more answers
Other questions:
  • 1/6 + 1/8 + 1/12 what is the awnser
    5·2 answers
  • What is/are the factor(s) in the "Sub-U-Like" study?
    10·1 answer
  • What two numbers equal the absolute value of 15
    6·1 answer
  • Dave tried to evaluate 55 – 15 + 20 step-by-step.
    7·1 answer
  • a school has 7 school buses each bus can seat 48 students a total of 303 students get on the bus to go to the school Camp how ma
    11·2 answers
  • A rectangular room has a diagonal measure of 20 meters. the room is four meters longer than it is wide. find the room's dimensio
    12·1 answer
  • If 4 oranges make 1 cup of juice then how much will 6 oranges make
    15·2 answers
  • What is the equation of this graphed Line enter your answer in slope-intercept form in the Box ​
    9·1 answer
  • Rena's rowboat drifts 23 feet from shore,
    8·1 answer
  • What's the slope of (-3,3) and (-1,2)​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!