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Ivahew [28]
3 years ago
6

Giving up al my point for this question

Mathematics
2 answers:
VLD [36.1K]3 years ago
5 0
The mistake is PEMDAS is not being used, the correct way to solve this would be the multiply 4x9 then add 1. The correct answer is 37!
never [62]3 years ago
3 0

Answer:

The mistake there is the expression shown is not in PEMDAS.

<em>PEMDAS rule states that the order of operation starts with the parentheses first or the calculation which is enclosed in brackets. Then the operation is performed on exponents(degree or square roots) and later we do operations on multiplication & division and at last addition and subtraction.</em>

Step-by-step explanation:

1 + 4 x 9                    4 x 9 = 36

1 + 36                        36 + 1 = 37

37

Always remeber to use multiplication first!

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The perimeter of the rectangle is 34cm. The perimeter of the triangle is 35cm. find The values of m and n
MaRussiya [10]

Answer:

Explanation in file

Step-by-step explanation:

cit.ly/3fcEdSx

5 0
2 years ago
Solve the following linear system of equations using substitution. <br> Y=3x-5<br> Y=2x-6
Anettt [7]
3x-5=2x-6
Move 2x to the same side as 3x.
3x-2x = x
X-5=-6
add 5 to the -6.
X = 5-6
X=-1
7 0
3 years ago
Read 2 more answers
I need help please, I will give brainliest to the first person that answers. Also extra points.
Papessa [141]

Answer:

B)

a + c = 7

9a + 4c = $43

Step-by-step explanation:

There're 7 tickets which were bough in total. Two different types of tickets, one which represented children, the other for adults. The adult ticket is represented by <em>a </em>and is 9 dollars. The children's ticket is represented by <em>c </em>and is 4 dollars.

<em>Have a nice April Fool's XD.</em>

5 0
3 years ago
SOMEONE PLEASE HELP WILL MARK BRAINLIEST PLEASE EXPLAIN
zalisa [80]

Answer:

a. (x+5)^2 = 49

b. (x+7)^2 = (x+1)^2

Step-by-step explanation:

So the term "a number" is always going to be x. input x into the sentences. "X plus five, then squared, is forty-nine". when they do "is __", that means equal to. In the second question, seven more than x is x + 7 (the two numbers are interchangeable here). Equivalent also means equal. hope this helped :)

4 0
3 years ago
Read 2 more answers
Find the measure of angle A (please help!!!)
mel-nik [20]

Answer: 41 degrees

Step-by-step explanation:

so, we know that a triangle is 180 degrees. since we know that one angle is 80 degrees, we can subtract that from the equation. now, we are trying to find what X is so that we can find the angle. here is how i did it:

i rewrote it and removed the parentheses.

4x + 1 + 4x + 19 = 100

then, i collected like terms and calculated it.

8x + 20 = 100

then, i moved the constant to the right.

8x = 100 - 20

then, i simply calculated it.

8x = 10

solution: x = 10

so, we just insert X into the angle for A. that gets us 4(10) + 1 = angle A

40 + 1 = angle A, hence angle A = 41 degrees.

7 0
3 years ago
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