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DiKsa [7]
3 years ago
6

Help please.........

Mathematics
1 answer:
Gnoma [55]3 years ago
8 0

Answer:

20x + 15 = 11

Step-by-step explanation:

First you need to add the like terms:

-7+2=-5

Now you need to expand the brackets:

-5*-4x=20x

-5*-3=15

Now you have 20x + 15 = 11. So if you want you can rearrange the formule to find x.

20x=-4

x= -5

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In a group of 100 students, 60 are freshman, 55 are female, and 22 are female freshman. Find the probability that a student pick
tatyana61 [14]

Answer:

93/100

Step-by-step explanation:

In a group of 100 students, 60 are freshman, 55 are female, and 22 are female freshman. Find the probability that a student picked from this group at random is either a freshman or female

Number of Freshman = 60

Number of female = 55

Number of Freshman female 22

Total number of students = 100

The probability that a student picked from this group at random is either a freshman or female

Thus P(freshman or female) = 60/100 + 55/100 - 22/100 = 93/100

3 0
3 years ago
The rectangular room is 10.25 inches by 8 inches. if 1 inch represents 2 feet of the actual room, what is the scale factor and a
GenaCL600 [577]
The rectangular room is 10.25 inches by 8 inches. If 1 inch represents 2 feet of the actual room. What is the scale factor and actual area of the room?

10.25 x 2 = 20.5 ft

and

8 x 2 = 16 ft

1in/ 2 ft or 1 in/ 24 inches
4 0
4 years ago
The length of a rectangle is twice the width. The perimeter is 48 inches
balu736 [363]

Answer:

x=16;y=8

Step-by-step explanation:

x=length

y=width

the length of a rectangle is twice the width

so,

x=2y........(1)

the perimeter is 48 inches

so,

2(x+y)=48

x+y=24....(2)

2y+y=24        [from 1]

y=8........(2)

so

x=2.8        [from 1 &2]

x=16

pls mark as brainliest

3 0
3 years ago
Please help me answer my question.
ryzh [129]

Answer:

2, 10, 25

Step-by-step explanation:

3 0
4 years ago
Read 2 more answers
Convert 275° to radians
Nuetrik [128]

Answer:

4.80 radians

Step-by-step explanation:

recall

180° = π radians

hence,

1° = π/180 radians

275° = (π/180) x 275 radians   (assume π = 3.1416)

=  (3.1416 / 180 ) x 275

= 4.7996

= 4.80 radians  (2 decimal place)

3 0
3 years ago
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