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Liula [17]
1 year ago
13

18

Mathematics
1 answer:
jonny [76]1 year ago
6 0

Answer:

280°

Step-by-step explanation:

There are 360° in a circle. you are given an arc that is 80°.

To find the arc JKI, subtract 80 from 360.

360 - 80 = 280°

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I have 3 children. Their ages add up to 21, and when multiplied they equal 75. How old are they?
olganol [36]
So represent the ages as x y and z with each being numbers

x+y+z=21
x times y times z=75
this is really tough for elementary school

one way is to find the factors of 75 or the numbers that add up to 75 and trial and error
use whole numbers becuase this is the world of math so


75=1 times 3 times 5 times 5
possible ages are
3,5,5
1,5,15
1,3,25
add them up

3+5+5=13
1+5+15=21 check
1+3+25=29


their ages are 1, 5 and 15
6 0
2 years ago
Read 2 more answers
A rectangle is a parallelogram with 4 equal sides true or false
IRISSAK [1]

Answer:

False

Step-by-step explanation:

A rectangle does not have 4 equal sides, it has 2 sets of equal sides.

8 0
1 year ago
Read 2 more answers
A model ship is 0.38 M long how long is the ship in centimeters
Leokris [45]

Answer:

Actual length of ship is  150  meters.

Step-by-step explanation:

As model ship is built to a scale of  

1 centimeter  : 5  meters and

length of model ship is  30  centimeters

Actual length of ship is  30 × 5 = 150  meters.

4 0
3 years ago
Read 2 more answers
-4x+4=6 <br> x=?<br> 2x+10=50<br> x=?<br> -3x-14=-5<br> x=?<br> 2/3x+2=5<br> x=?
Nadya [2.5K]
-4x + 4 = 6
x = -.5

2x + 10 = 50
x = 20

-3x - 14 = -5
x = -3

2/3x + 2 = 5
x = 4.5
5 0
2 years ago
10. The equation t 0.07c represents the tax, t, based on the cost, c, of an item. Which part of the equation represents the cons
motikmotik
The constant of proportionality stays the same no matter what values the variables take, so in our example independently of the cost of the item (and of the tax value, which is dependent on the cost value).

Here the only value that does not change is the 0.007, the rate! - this is the correct answer.
4 0
3 years ago
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