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tatiyna
3 years ago
11

Simplified form of the equation 7z + 2 = 8 + 2z + 1z?

Mathematics
1 answer:
mina [271]3 years ago
5 0

Answer:

3/2

Step-by-step explanation:

7z+2=8+2z+1z

7z+2=8+3z

7z-3z+2=8

4z+2=8

4z=8-2

4z=6

z=6/4

simplify

z=3/2

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6A./25% घाटामा बेचिएको कुनै सामानलाई रु. 21,000 बढीमा बेच्न सकिएको भए 10% नाफा
svetlana [45]

Answer:

60,000

Step-by-step explanation:

Let us represent:

Costs price = x

Selling price = x - 25%x

x - 0.25x

= 0.75x

If it been sold for Rs 21,000 more then the profit would have been

10%. = x + 10% = 1.1x

1.1x =0.75x + 21000

Collect like terms

1.1x - 0.75x = 21000

0.35x =21000

x = 21000/ 0.35

x = 60000

The cost price of the item = 60,000

7 0
3 years ago
X^2-4x+c find the value of c
Sonbull [250]

Answer:

c = 4

Step-by-step explanation:

Given

x^2 - 4x + c

Required

Find c

The question is incomplete. However, I'll assume the expression is a perfect square.

To find c, we make use of the following formula

c = (\frac{b}{2})^2

Where

ax^2 + bx + c

By comparison with x^2 - 4x + c

a =1

b = -4

So, c = (\frac{b}{2})^2 becomes

c = (\frac{-4}{2})^2

c = (-2)^2

c = 4

<em>The value of c that makes the expression, </em>x^2 - 4x + c<em> a perfect square is 4 and the expression is: </em>x^2 - 4x + 4<em></em>

8 0
3 years ago
Homework Help! ASAP
enyata [817]
1. $5.76/64 Ounces
2. $1.80/15 Ounces

1. $0.09/ounce
2. $0.12/ounce

So, in conclusion, the 64 ounce bottle is cheaper than the 15 ounce bottle by $0.03.

7 0
3 years ago
Tell me something you have wanted to say but never told anyone.
Stells [14]
I’m not that smart i just get answers off the internet
6 0
3 years ago
The cities Cleveland, Ohio; Erie, Pennsylvania; and Rochester, New York, in respective order, lie approximately in a straight li
Ann [662]

Answer:

  Erie to Rochester is 145 miles

Step-by-step explanation:

If we designate the points of interest as C, E, and R, we are told that ...

  CE + ER = CR . . . . . the various distances are segments of a straight line

For CE = 94 and CR = 239, we can fill in the given information and solve for ER.

  94 + ER = 239

  ER = 239 -94 . . . . . . subtract 94 from both sides of the equation

  ER = 145

The distance from Erie to Rochester is 145 miles.

7 0
4 years ago
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