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lina2011 [118]
4 years ago
11

Add 7145 and 8265 using mental math strategies

Mathematics
1 answer:
erik [133]4 years ago
4 0

Answer:

your answer is right. It.is 15,410

basically add up the 5s and carry the one and add the one to the 6+4+1. then carry the one over the 1 then add and lastly add up the 7 and the 8. sorry if that didn't help.

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Which of the following ordered pairs represents the solution to the system given below? 2x + y = 20 4x − 2y = 40 A) (10,0) B) (0
shtirl [24]
2x+y=20 \ \ \ |\times 2 \\
4x-2y=40 \\ \\
4x+2y=40 \\
\underline{4x-2y=40} \\
4x+4x=40+40 \\
8x=80 \ \ \ |\div 8 \\
x=10 \\ \\
2x+y=20 \\
2 \times 10+y=20 \\
20+y=20 \ \ \ |-20 \\
y=0 \\ \\
\boxed{(x,y)=(10,0)} \Leftarrow \hbox{answer A}
4 0
3 years ago
Read 2 more answers
Solve for x: 3x - 24 = 81<br> A-57/3<br> B-105/3<br> C-57<br> D-105<br> Helpppp please
expeople1 [14]

Solution,solve\:for\:x,\:3x-24=81\quad :\quad x=35

Steps: 3x-24=81

\mathrm{Add\:}24\mathrm{\:to\:both\:sides}, 3x-24+24=81+24

\mathrm{Simplify}, 3x=105

\mathrm{Divide\:both\:sides\:by\:}3, \frac{3x}{3}=\frac{105}{3}

Simplify, x=35

The correct answer is <u><em>B. 105/3</em></u>

<u><em>Hope this helps!!!</em></u>

<3 - austint1414

5 0
3 years ago
I NEED HELP ASAP PLOT THE POINTS
AlekseyPX

Answer:

5 | to the right of 2. 2 | to the right of 1.

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4 years ago
Write each ratio in the simplest form (Note, semember the units of
Gre4nikov [31]

Step-by-step explanation:

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6 0
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Ede4ka [16]

The answer is P(>204.3) = 0.5000

There are an infinite number of real numbers > 204.3, but an equally infinite number of real numbers < 204.3

The chance of randomly selecting a number >204.3 is 1/2 or 50%

or for 4 decimals: 50.0000%

The probability of an event can be calculated via chance formula with the aid of truly dividing the favorable range of effects by means of the whole number of feasible effects.

Opportunity = the wide variety of ways of achieving fulfillment. The whole range of viable effects. As instance, the possibility of flipping a coin and it being head is ½, because there is 1 way of having a head and the whole range of viable effects is two (a head or tail).

Chance is the department of mathematics that research the possible outcomes of given occasions together with the outcomes' relative likelihoods and distributions.

Learn more about the probability here brainly.com/question/24756209

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8 0
2 years ago
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