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ANTONII [103]
3 years ago
15

4z-(-3z) can you help me​

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

Answer:

7z

Step-by-step explanation:

4z-(-3z).

Two negatives equal a positive only <u>when they are right next to each other.</u>

4z+3z=7z. Hope this helps :D

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The price of a swimming pool
Goryan [66]

Answer:

  • Sales\:\:Price=List\:\:Price-Discount
  • Sales price= $1167.25 List price=L Discount=19.5\%\:of\:L=0.195L
  • 1167.25=L-0.195L

Step-by-step explanation:

The percentage discount is 19.5\%

The discount is always given on the list price.

Sales\:\:Price=List\:\:Price-Discount

Let the list price be L, then

List price=L

Sales price= $1167.25

Discount=19.5\%\:of\:L=0.195L

We substitute into the equation to get:

1167.25=L-0.195L

1167.25=0.805L

Divide both sides by 0.805

\frac{1167.25}{0.805}=L

1450=L

The list price of the swimming pool is $1450

5 0
3 years ago
Pls help me find the answer
gregori [183]
The surface area is 1536
3 0
3 years ago
If b&lt;0 and |b| = 4b+15 what is the value of b
Yanka [14]

Answer:

|b|= 4b+15

-b=4b+15

-b-4b= 15

-5b= 15

b= 15/-5

b= -3

the ans -3

3 0
3 years ago
Read 2 more answers
Question:Choose the correct scale factor:<br> A)2<br> B)1/2<br> C)3<br> D)1/3
aleksandrvk [35]

The length of ND = 3 units

The length of N'D' = 6

6 / 3 = 2

The scale factor is 2

7 0
3 years ago
Read 2 more answers
Select all ratios that are in their simplest form. a29:26 b4:28 c25:10 d28:5 e12:19
xxTIMURxx [149]

The correct answer is Option A , D , E.

<h3>What is meant by ratio?</h3>

A ratio in mathematics is a comparison of two or more numbers that shows how big one is in comparison to the other.

<h3>What is meant by ratio in simplest form?</h3>

Ratio in it's simplest form means when the ratio can't be simplified anymore  by cancelling out the common factors.

The ratio in Option(A) can't be simplified anymore because 29 is a prime number.

The ratio in Option(B) can be simplified to 1 / 7.

The ratio in Option(C) can be simplified to 5 / 2.

The ratio in Option(D) can't be simplified.

The ratio in Option(E) can't be simplified because 19 is prime number.

Hence, the correct answer is Option A , D , E.

Learn more about ratios on:

brainly.com/question/2328454

#SPJ4

8 0
2 years ago
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