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Levart [38]
3 years ago
12

Plz help me get the right answer to these

Mathematics
2 answers:
taurus [48]3 years ago
6 0

Answer:

<h2>x = -20</h2>

Step-by-step explanation:

3+\dfrac{1}{5}x=-1\qquad\text{subtract 3 from both sides}\\\\\dfrac{1}{5}x=-4\qquad\text{mulatiply both sides by 5}\\\\5\!\!\!\!\diagup^1\cdot\dfrac{1}{5\!\!\!\!\diagup_1}x=(5)(-4)\\\\x=-20

const2013 [10]3 years ago
5 0

Equation: 3+1/5 x=-1

Step 1. You need to simplify both sides of the equation.

1 /5  x+3=−1

Step 2: Subtract 3 from both sides of the equation.

1 /5  x+3−3=−1−3

1 /5  x=−4

Step 3: Multiply both sides of the problem by 5.

5 x ( 1 /5  x)=(5) x (−4)

x=−20

Answer: x=-20

Hope I could help!

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There are 220 students in Year 9
e-lub [12.9K]

Answer:

132 and 88

Step-by-step explanation:

If there are 20% more boys than girls, then this means that the total percentage of boys us 60% and girls is 40%.

0.6 * 220 = 132

0.4 * 220 = 88

There are 132 boys and 88 girls in year 9

5 0
2 years ago
Least common multiple of 70, 60, and 50
goldenfox [79]
70 = 7 x 2 x 5
60 = 2² x 3 x 5
50 =  2 x 5²
 
LCM = 2 x 3 x 5 x 7  = 210

Answer: LCM = 210
3 0
3 years ago
Jenna knits scarves and then sells them on Etsy, an online marketplace. Let C(x) = 4x + 20 represent the cost C in
Alex Ar [27]

Answer:

Step-by-step explanation:

We are given that Jenna knits scarves and sells them on Etsy an online market place.

C(x)=4x+20

Where C=Represents the cost in dollars

x=Number of scarves

We have to create a table to show the relationship between the number of scarves x and the cost C

Substitute x=1

C(1)=4(1)+20=$24

Substitute x=2

C(2)=4(2)+20=$28

C(3)=4(3)+20=$32

C(4)=4(4)+20=$36

C(5)=4(5)+20=$40

C(6)=4(6)+20=$44

3 0
2 years ago
How do you solve this
Dafna1 [17]

Answer: it’s 65 degrees

Step-by-step explanation: The angles 6 and 3 are alternate interior angles (basically their the same measure) so both will be 65 degrees!

3 0
3 years ago
Leslie has a rectangular patio. She measures it and finds out it is 2135 feet long by 1115 feet wide. She wants to know how many
larisa86 [58]

Answer: (1) Leslie will need 2,380,525 square tiles (1 foot by 1 foot each)

(2) She will have to spend $1,785,393.75 to cover her patio.

Step-by-step explanation: Please refer to the picture attached.

The rectangular patio has been designed and as shown in the diagram has on side measuring 2135 ft and the other side measuring 1115 ft. This means, in order to cover the entire patio, she would have to cover an entire area defined as 2,135 feet into 1,115 feet. If one tile measures 1 foot long by 1 foot wide, the total number of tiles to cover the patio can simply be derived as;

Area = L x W

Where the length is 2135 and the width is 1115,

Area = 2135 x 1115

Area = 2380525

**Having in mind that one tile measures 1 ft by 1 ft, the area of each tile is given as

Area = L x W

Area = 1 x 1

Area = 1 square foot**

(1) The above calculation shows that Leslie would be using up a total of 2,380,525 square tiles to completely cover her patio.

(2) Having been told that each square foot of tile costs 75 cents ($0.75), the total amount spent to cover her patio would be calculated as follows;

Cost = Area x cost per tile

Cost = 2380525 x 0.75

Cost = 1785393.75

The total cost therefore is $1,785,393.75

7 0
3 years ago
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