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Triss [41]
3 years ago
11

4. Select the expression equivalent to (6x + 5) - (4x14).

Mathematics
1 answer:
SashulF [63]3 years ago
4 0

Answer:

Option b: .2x + 17

Step-by-step explanation:

Given that:

= (6x + 5) - (4x-14).

By simplifying

"-" sign before bracket will alter the inner signs

= 6x + 5 - 4x + 14

Adding like terms

= 2x + 17

i hope it will help you!

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A 5-pack of key chains costs $5.46. What is the unit price, rounded to the nearest cent?
svlad2 [7]

Answer:

the unit price is $1.10

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
7. The cost of renting the party room for 10 people is $117.50. The cost of renting the room is $151.25 for 15 people. Write an
Viktor [21]

Answer:

C = 6.75n + 50

Step-by-step explanation:

The equation for the cost of renting the party room can be written in the form;

C= mn+k ......i

Where C = cost

n = number of people

Substituting the 2 cases into the equation we have,

Case 1

117.5 = 10m + k ......1

Case 2

151.25 = 15m + k .....2

Subtracting eqn 1 from 2 we have

151.25 - 117.50 = 15m - 10m

5m = 33.75

m = 33.75/5 = 6.75

Substituting m = 6.75 into eqn 1, we have

117.50 = 10(6.75) + k

k = 117.5 - 67.50

k = 50

Therefore, rewriting the eqn i, we have

C = 6.75n + 50

5 0
3 years ago
What is the surface area?
Ratling [72]
The formula for the surface area of a rectangular prism is

A= 2(wl+hl+hw)

We are given the height =2cm, width= 5cm, and length= 10cm. All you have to do is plug this info in!

A= 2(wl+hl+hw)
= 2[(5)(10)+(2)(10)+(2)(5)]
= 2(50+20+10)
= 2(80)
=160 cm squared

Hope this helps!! :)
4 0
2 years ago
Solve for n.<br> Q=5n+5z
kirill115 [55]
q=5n+5z\ \ \ \ \ \ \ |subract\ 5z\\\\q-5z=5n\ \ \ \ \ \ \ |divide\ by\ 5\\\\n=\frac{q-5z}{5}\\\\Answer\ is\ n=\frac{q-5z}{5}
5 0
3 years ago
Read 2 more answers
PLEASE HELP
VikaD [51]

Answer:

9

Step-by-step explanation:

total parts= 3+7=10

12=4 parts

1 part=3

3*3=9

3 0
2 years ago
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