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podryga [215]
3 years ago
12

I think of a number, add 3 to it and multiply the result by 7.

Mathematics
1 answer:
Alla [95]3 years ago
6 0

Answer:

7(x + 3)

<em>Step-by-step explanation</em>

<em>thinked number = x</em>

<em>add 3 = +3 </em>

x + 3

<em>multiply</em><em> </em><em>the</em><em> </em><em>result</em><em> </em><em>by</em><em> </em><em>7</em>

<em>7(  x+ 3)</em>

<em>hope</em><em> </em><em>this</em><em> </em><em>helps</em>

<em>brainliest</em><em> </em><em>appreciated</em>

<em>good</em><em> </em><em>luck</em><em>!</em><em> </em><em>have</em><em> </em><em>a</em><em> </em><em>nice</em><em> </em><em>day</em><em>!</em>

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Consider triangle ABC where AB=X+5, BC=X-2, area is 30cm squared. Find X by solving X^2+3X-70=0, and find the perimeter.
klasskru [66]

Answer:

What the hell AC is not given so you can't find the Perimeter

Step-by-step explanation:

  • x^2+3x-70=0
  • (x-7)(x+10)=0
  • x-7=0

       x+10=0

  • x=7

       x=-10

AB=x+5

  • AB=12

        AB=-5

BC=x-2

  • BC=5

        BC=-12

Area of ABC = 30cm2

<u>Perimeter of ABC = AB+BC+</u><u>AC</u>

<u />

8 0
2 years ago
May I please get help with this question?
Julli [10]
The answer should be 42 times.
5 0
3 years ago
Read 2 more answers
What is3\8 +5/2 need help
scoray [572]
3/8 + 5/2
=3/8 + 20/8
= 23/8
or
= 2 7/8
6 0
2 years ago
Fuimos al Circo "Hermanos Poncho y Carlos", y tuvimos que pagar en total $350 por mis dos hermanos, mis padres y yo. Mi mamá pag
nalin [4]

Answer:

$160

Step-by-step explanation:

El monto total a pagar es de $350

\dfrac{1}{7} es pagado por mamá

\dfrac{2}{5} es pagado por el hermano mayor

La porción pagada por papá es

1-(\dfrac{1}{7}+\dfrac{2}{5})=1-(\dfrac{5+14}{35})\\ =1-\dfrac{19}{35}\\ =\dfrac{35-19}{35}\\ =\dfrac{16}{35}

Esta cantidad pagada por papá es

350\times\dfrac{16}{35}\\ =10\times 16\\ =\$160

Esta cantidad pagada por papá es $160.

3 0
2 years ago
Find the slope of the line through the points (3,7) and (5,19)
Sedbober [7]

Answer:

<u>1</u><u>2</u>

2

Step-by-step explanation:

(3,7)(5,19)

(x,y)(x,y)

<u>y2</u><u>(</u><u>1</u><u>9</u><u>)</u><u>-</u><u> </u><u>y1</u><u>(</u><u>7</u><u>)</u>

x2(5)-x1 (3)

formula. <u>y2-y1</u>

x2-x1

7 0
3 years ago
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