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Tamiku [17]
3 years ago
10

X -8 = -11 what is X?

Mathematics
1 answer:
suter [353]3 years ago
4 0

Answer:

x=-3

Step-by-step explanation:

<u>How?</u>

so the easiest and quickest way to answer these type of questions are to do the opposite.

so -11+8=-3

if you get a question like

3x+2=17

17-2=15

15 divided by 3=5

so x=5

hope that helps

thank you

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A × 60=120 what does the a represent
I am Lyosha [343]
In math, the word unknown is also called to the missing term of a number sentence. This missing term is a missing piece that has to be solved.
Let us have A x 60 = 120, since A has no numerical value, it is considered as the missing term. How can we get the value of the missing term? first, study the number sentence. Find out the rule, then apply it.
The value of A on the equation above is 2. Here's how:
A x 60 = 120
A=120÷60
A=2
The value A is 2, therefore the missing term is 2.


3 0
3 years ago
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What you use an area model how can you tell if two fractions are not equivalent
svp [43]

Answer:

multiply or  simplify

Step-by-step explanation:

8 0
3 years ago
I need help with this math this is new for me I am trying to help my grandson. <br> Thank you
kirill [66]

Answer:

Step-by-step explanation:

(I'm assuming your son hasn't learned Pythagorean theorem so I'm going to avoid using that)

10. Works because that's a rectangle or a parallelogram

11. 5,5,6,14 is possible with a weird Trapezoid

12. Works, that's a square, or a parallelogram

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3 0
3 years ago
Does anyone know this ?
Alina [70]

Answer:

Equation: 12 + 3x = 30

Solution: x = 6

Step-by-step explanation:

12 + 3x = 30

X stands for how many hours she rented it for. You want to solve for x, so get x by itself.

12 + 3x = 30

-12           -12

---------------------

3x = 18

Divide both sides by 3

3/3x = 18/3

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7 0
3 years ago
Brian is making 5 triangular flags, each with the dimensions shown below. How much fabric will Brian need to make the 5 flags?
Finger [1]

Answer:

  1,620 square inches

Step-by-step explanation:

The area of one triangle can be computed using the formula ...

  A = 1/2bh . . . . where b represents the base length, h represents height

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Then the area of 5 flags will be 5 times that much:

  fabric needed = 5 × (324 in²) = 1,620 in²

Brian will need 1,620 square inches of fabric for his 5 triangular flags.

6 0
3 years ago
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