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Marat540 [252]
3 years ago
12

Multiply and simplify if possible

Mathematics
1 answer:
Natalka [10]3 years ago
6 0

Answer:

a

Step-by-step explanation:

i think its correct

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Find the value of x and the measure of each labeled angle. (8x - 20ºX (5x + 37)​
11111nata11111 [884]

According to above figure, the angles (8x - 20)° and (5x + 37)° are pairs of vertical opposite angles, so

  • 8x - 20 = 5x + 37

  • 8x - 5x = 37 + 20

  • 3x = 57

  • x = 57 ÷ 3

  • x = 19
5 0
2 years ago
In 1950 the number of retirees was approximately 150 per thousand people aged 20-64. In 1990 this number rose to approximately 2
serg [7]

Answer: 233 people per thousand

Step-by-step explanation:

Using extrapolation method,

if 150/k in 1950,

  200/k in 1990,

  275/k in 2020,

2003 lies in between 1990 and 2020. So, you extrapolate the values of 200/k and 275/k for the years respectively.

Therefore,  

(2003 - 1990)/(2020 - 2003) = (x - 200)/(275 - x)

Where x is the number of retirees per thousand for 2003

Making x the subject of relation in the above equation.

Cross multiply the equation above;

(2003 - 1990)(275-x) = (2020 - 2003)(x - 200)

13(275 - x) = 17(x-200)

3575 - 13x = 17x - 3400

Collect the like terms

3575+3400 = 17x + 13x

30x = 6975

x = 6975/30

x = 232.5

x = 233 people per thousand to the nearest integer

6 0
3 years ago
Shern goes to the BX with $19. She buys a gift for her mom that costs $7.25. She also needs to make sure that she has $2.75 left
poizon [28]

Answer:

18 bags of skittles

Step-by-step explanation:

19-7.25-0.5x=2.75

=> -0.5x=-9

=> x=18

7 0
2 years ago
What is the smallest integer greater than 1 that is both the square of an integer and the cube of an integer?
serg [7]

Answer: 64

√64 = 8

∛64 = 4

5 0
2 years ago
If someone solved this can you help?
natka813 [3]

Answer:

I/d/k but I will say 9/10

Step-by-step explanation:

Wow

5 0
2 years ago
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