Answer:
$138
Step-by-step explanation:
We can first turn the words into a mathematical equation by substituting words with the information we have:
Total earning - ( Price of three books)
$180 - (Price of one book x 3)
$180 - ($14 x 3)
Finally, after we have created the mathematical equation, we solve it!
$180 - ($14 x 3)
$180 - $42
$138
Answer:
<h2>x = 30°</h2>
Step-by-step explanation:
Since the figure above is a triangle, all it's angles sum up to 180°
To find x , add up all the angles and subtract them from 180°
That's
57 + 93 + x = 180
150 + x = 180
x = 180 - 50
We have the final answer as
<h3>x = 30°</h3>
Hope this helps you
Answer:
20
Step-by-step explanation:
This is the information we know :
A. a = 4
B. b = 15
C. c = 16
a + c
The a and c represent variables that must be substituted by their value, since we know their initial value, we substitute :
a + c when a = 4 and c = 16
4 + 16
20
We want to write and solve an equation that represents the given situation. The equation we will find is (9/10)*a = 45, and its solution is a = 50.
So we know that 9/10 of the apples in the basket are red, and we know that there are 45 red apples.
Then, if we define a as the total number of apples, we know that (9/10) times a must be equal to 45, we can write this as:
(9/10)*a = 45
This is the equation that we must solve.
We can solve this if we multiply both sides by (10/9), it gives;
(10/9)*(9/10)*a = (10/9)*45
a = (10/9)*45 = 50
This means that there are 50 apples in the basket.
If you want to learn more, you can read:
brainly.com/question/18176080
Step-by-step explanation:
the 1st one is 2/11
the 2nd one is 6/20
