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
kkurt [141]
3 years ago
11

1/4(z +3z)+ 7=−z + 1 please help with this ive been stuck

Mathematics
2 answers:
erastovalidia [21]3 years ago
5 0

Answer:

<em><u>z = -3</u></em>

Step-by-step explanation:

<u>Step 1: Simplify both sides of the equation. </u>

z+7=−z+1

<u>Step 2: Add z to both sides. </u>

z+7+z=−z+1+z

2z+7=1

<u>Step 3: Subtract 7 from both sides. </u>

2z+7−7=1−7

2z=−6

<u>Step 4: Divide both sides by 2. </u>

<u>2z</u>   =  <u>−6 </u>

2      2

z=−3

zvonat [6]3 years ago
5 0

Answer:

Why you delete my answer

Step-by-step explanation:

You might be interested in
The variables y and x^2 are directly
choli [55]

Answer:

y = \frac{20}{21} x²

Step-by-step explanation:

Given that y and x² are directly proportional then the equation relating them is

y = kx² ← k is the constant of proportion

When x = 2

y = k × 2² = 4k

When x = 5

y = k × 5² = 25k

Then

25k - 4k = 20 ( difference between values is 20 )

21k = 20 ( divide both sides by 21 )

k = \frac{20}{21}

y = \frac{20}{21} x² ← equation of proportion

6 0
2 years ago
Write a multiplication expression using the following clues:
Akimi4 [234]

Answer:

1.1*8.3=9.13

Step-by-step explanation:

hope this helps

8 0
3 years ago
A metal conduit will be used as a pathway for wiring through a concrete block. The conduit is a 5 foot long rod with an outer di
kolbaska11 [484]

Answer:  586.59 cubic centimeters .

Step-by-step explanation:

As per given . we have

Inner diameter =  1.8 inches

⇒Inner radius :r = 0.9 in.  (radius is half of diameter)

= 0.9 x (2.54) = 2.286 cm  [∵ 1 in . = 2.54 cm]

Outer diameter = 2 inches

⇒Outer radius : R = 1 inch  = 2.54 cm

Height : h = 5 feet = 5 x(30.48) = 152.4 cm   [∵  1 foot = 30.48 cm]

The formula to find the volume of a hollow cylinder :

V=\pi(R^2-r^2)h , where R= outer radius , r= inner radius and h= height.

Now , the volume of metal in the conduit :

V=(3.14)(( 2.54)^2-(2.286)^2)(152.4)

V=(3.14)(6.4516-5.225796)(152.4)

V=(3.14)(1.225804)(152.4)

V=586.591342944\approx586.59\ cm^3

Hence, the volume of metal in the conduit is 586.59 cubic centimeters .

5 0
3 years ago
Peter left his home in Chicago and drove to a town a few hours away. On the way there, he drove 40 mph due to traffic, but on th
Orlov [11]

Answer:

50 mph

Step-by-step explanation:

To calculate averages you add up all the items and divide by the total number of items there is.In this problem were 2 items so you divide it by 2

Add the two numbers

40+60=100

now just divide by 2 because there was 2 drives giving you 50 mph

Hope this helps!

:)

4 0
3 years ago
If you spend $60 per month on a cell phone plan, how much should you budget each week for that
natulia [17]

Answer: $15

There are about 4 weeks in a month, so if you spend $60 per month, you would spend 1/4 of that every week.

60/4= $15

8 0
3 years ago
Read 2 more answers
Other questions:
  • Canada has a population. That is about 1/10 as large as the United States. If Canada's population is about 32 million, about how
    11·2 answers
  • An election ballot asks voters to select three city commissioners from a group of six candidates, in how many ways can this be d
    5·1 answer
  • A cable installer charges $45.00 per hour
    10·2 answers
  • Why should money for eating out at a restaurant be taken from the entertainment budget instead of from the food budget?
    10·1 answer
  • PLEASE HELP!<br> Solve the open sentence. <br><br><br> 8 &lt; 2b or 2b + 15 &lt; 5
    6·1 answer
  • PLEase Help ME In This Work!!
    11·1 answer
  • Can someone please help me with 1 and 2 :)
    9·1 answer
  • Which of the following best describes the equation below? y=2/5x-12 A. neither linear nor nonlinear B. linear C. both linear and
    14·1 answer
  • If g (x) = 3x+7, then which of the following is the solution to g (x) = 1
    12·1 answer
  • How many ways are there to select five unordered elements from a set with three elements when repetition is allowed?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!