Answer:
19
Step-by-step explanation:
by replacing x and y with their given values ,
we get :-
=》2x + 7y - 10
=》(2 × 4) + (7 × 3) - 10
=》8 + 21 - 10
=》29 - 10
=》19
The height of the pole is 12.5 feet.
<h3>What is Unitary method?</h3>
The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.
Given:
Cindy's shadow is 5 feet.
length of the shadow of the pole at the same time, she finds it to be 12.5 feet.
So,
12.5/5=x/5,
62.5=5x
x= 12.5 feet.
Hence, the height of the pole is 12.5 feet.
Learn more about this Unitary method here:
brainly.com/question/22056199
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Answer:
51,000,000,000
Step-by-step explanation:
the 10^8 usually determines how many 0's will be added to the right side of the number
thus- 510x10^8 = 51,000,000,000
If there is more information then you should use it but if that is then yes it is possible if you think hard enough.
-7 + 1 + -1 x - 6
By PEMDAS, we must multiply first.
-7 + 1 + (-1 x -6)
-7 + 1 + 6
Then, we can add the numbers together.
-6 + 6
0
Evaluated expression: 0
Hope this helps!! :)
