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Lemur [1.5K]
3 years ago
6

Find the value. Please

Mathematics
1 answer:
SIZIF [17.4K]3 years ago
5 0
CosA = 12/20 which is 3/5
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At her job, mary works 4 hours on monday, 3 hours on wednesday, and 6 hours on saturday. her boss adds a $10 bonus to her payche
Andru [333]
She worked 4+3+6 hours = 13 hoursso 13x+10 = 120.50
13x=110.50
x=8.5
so she makes $8.50 an hour which is A.
8 0
3 years ago
You want to enlarge a 4 x 5 inch photo to fit into a 1 inch wide frame
skelet666 [1.2K]

The 4•x by 5•x inner dimensions of the 53 inches outer perimeter picture frame, the 1 inch wide frame and the 4 × 5 inch picture to be enlarged, gives;

a. The outer perimeter equation is presented as follows;

18•x + 8 = 53 inches

b. The scale factor required for the enlargement of the picture is 2.5

<h3>Which method can be used to write the equation and find the scale factor?</h3>

The dimensions of the photo = 4 × 5 inch

Width of the frame = 1 inch

Outer perimeter of the frame = 53 inches

The width of the inside of the picture frame = 4•x

The height of the inside of the picture frame = 5•x

a. The equation for the outer perimeter of the picture frame is therefore;

2 × (4•x + 1 + 1) + 2 × (5•x + 1 + 1) = 53

Which gives;

2 × (4•x + 2) + 2 × (5•x + 2) = 53

8•x + 4 + 10•x + 4 = 53

A simplified equation for the outer perimeter of the picture frame is therefore;

  • 18•x + 8 = 53

b. Solving the above equation, we have;

18•x + 8 = 53

18•x = 53 - 8 = 45

18•x = 45

Therefore;

x = 45 ÷ 18 = 2.5

x = 2.5

The width and height of the picture frame are therefore;

Width = 4•x = 4 × 2.5 = 10

Height = 5•x = 5 × 2.5 = 12.5

Which gives;

Width = 10 inches

Height = 12.5 inches

The enlargement factor, sf, is given by the ratio of a side of the picture frame to a side of the picture as follows;

sf = 12.5/5 = 2.5

  • The factor by which to enlarge the picture frame is 2.5

Learn more about linear scale factors here:

brainly.com/question/19381630

#SPJ1

3 0
2 years ago
Please solve this worksheet. (Factoring trinomials)
mash [69]

Answer:

where's the worksheet

Step-by-step explanation:

6 0
3 years ago
Please Help! I’m to lazy to do it my self TwT
zvonat [6]

Answer:

Step-by-step explanation:

multiples of 5 are 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

multiples of 4 are 4 8 12 16 20 24 28 32 36 40 44 48 52 56 60 64 68 72 76 80  

the least common multiple they have is 20 mark brainliest thanks

8 0
3 years ago
We have 10 gallons of gas in the car. we use 1 5/8 gallons each hour. How many hours of gas do we have?
Andre45 [30]
So you have 10 gallons of gas
You use 1.625 or 1.63 an hour

You can either do 10/1.625 = 6 hours and 15 mins
You can either do 10/1.63 = 6 hours and 13 mins



5 0
3 years ago
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