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vodomira [7]
2 years ago
13

Explain how a solution found using substitution can be checked.

Mathematics
1 answer:
DENIUS [597]2 years ago
4 0
A solution can be found using substitution by substituting the ordered pair into both of the original equations.
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Two sides of a triangle measure 7 meters and 9 meters. Which of the following measures could represent the perimeter of the tria
boyakko [2]
Perimeter is sum of all the sides ,

so, perimeter will be 7 + 9 + x = 16 + x

it will be more than 16 for sure
8 0
3 years ago
How do you write this in numerical expression and in a answer statement
-Dominant- [34]
To write this as a numerical expression, you will think of the different parts of the math story that are occurring and put them together in one math statement.  You have 12 books being ordered that are $9 each AND are paying a $15 shipping charge.  This can be written as 12 x $9 + $15.  There are 2 terms here - these are the 2 parts!  Multiply 12 times 9 first to get $108, then you can add the $15 shipping fee.  You can only add units that are the same, so you must multiply first. Your answer statement is a sentence that gives your final answer in a complete sentence.  For example, the total cost of Lannie's order is $123.
4 0
3 years ago
If the circumference of a circle is 3/4pi cm what is the area of the circle in terms of pi
Vinil7 [7]

Answer:

Area = π×(3/8)²

Step-by-step explanation:

Let p represent the circumference and r the radius

then

p = 3/4π = 2×π×r ⇒ 3/4 = 2r

then r = (3/4)/2 = 3/8

Area = π×r² = π×(3/8)²

:)

5 0
2 years ago
The following dot plot shows the number of weekly challenge questions each of the 30 members the Math Bowl team answered correct
Alja [10]

Answer:

10

Step-by-step explanation:

The most number of questions answered correctly are 10 and 11.

The typical number of questions a student answered correctly can be represented by the middle most value that is common to the data set.

If the data set is distributed evenly, the median, or the middle most value will fall on the 15th and 16th dots, which represents 10 correct correct challenge questions answered.

The typical number is 10.

5 0
2 years ago
Solve the equation for y. 2x-y=5
bazaltina [42]

Answer:

just doing this for points

Step-by-step explanation:

so ya :)

3 0
3 years ago
Read 2 more answers
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