Answer:
about 300
21200 rounded is 21000 and 6575 rounded is 7000
Step-by-step explanation:
21000÷7000=300
8+h>2+3h
A) h>3
B) h>4
C) h<3
D) h<4
From the given information as Multiply 12 by the sum of 8 and t. The expression would be 12(8+t)
You can represent the unknown amounts by the use of variables.
Follow whatever the description is and convert it one by one mathematically.
For example, if it is asked to increase some item by 4 , then you can add 4 in that item to increase it by 4.
If something is, for example, doubled, then you can multiply that thing by 2 and so on methods can be used to convert descriptions to mathematical expressions.
We have given the information as Multiply 12 by the sum of 8 and t
In order to write an expression for the words
The expression would be 12(8+t)
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Which equation represents the new area, N, of the floor of the cage?
A N = w2 + 4w
B N = w2 + 6w
C N = w2 + 6w + 8
D N = w2 + 8w + 12
2. Two boys, Shawn and Curtis, went for a walk.
Shawn began walking 20 secondsearlier than Curtis.
• Shawn walked at a speed of 5 feet per second.
• Curtis walked at a speed of 6 feet per second.
For how many seconds had Shawn been walking at the moment when the two boys had walked exactly the same distance?
1) The equation that represents the new area, N, of the floor of the cage is D) N = w² + 8w + 12.
2) Shawn had been walking for 120 seconds.
Any mathematical statement that includes numbers, variables, and an arithmetic operation between them is known as an expression or algebraic expression. In the phrase 4m + 5, for instance, the terms 4m and 5 are separated from the variable m by the arithmetic sign +.
The original area of the rectangular cage is:
A = lw, where l is the length and w is the width.
We are given that the length of the floor is 4 feet greater than its width, so we can write l = w + 4.
The new dimensions of the floor are w + 2 and (w + 4) + 2 = w + 6. Therefore, the new area of the floor is:
N = (w + 2)(w + 6) = w² + 6w + 2w + 12 = w² + 8w + 12
Let t be the time in seconds that Curtis has been walking. Then Shawn has been walking for t + 20 seconds.
The distance that Curtis has walked is d = 6t, and the distance that Shawn has walked is d = 5(t + 20), since Shawn started 20 seconds earlier and walks at a slower pace.
We want to find the time when they have walked the same distance, so we set the two expressions for d equal to each other:
6t = 5(t + 20)
Simplifying and solving for t, we get:
6t = 5t + 100
t = 100
Therefore, Curtis had been walking for 100 seconds when the two boys had walked exactly the same distance. At that time, Shawn had been walking for t + 20 = 120 seconds.
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The word form is Two Hundred Thousand Seven.
You must know the place values of the numbers to put the answer in word form.