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3 years ago

One number is three less than two times

Mathematics

1 answer:

Reil [10]3 years ago

7 0

Answer:

the answer is 6 and 9

Step-by-step explanation:

6 x 2 is 12 and 12-3 is 9 added together they are 15

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A football player gained two yards on one play on the next play he gained 5 ft was his gain greater on the first play or the sec

saveliy_v [14]

The gain was greater on the first play.

1 yard=3 ft
2yards times 3= 6ft

6ft>5ft

Hope this is helpful!

4 0

3 years ago

Correct expression for 10 decreased by 3x

anzhelika [568]

Answer:

10-3x

Step-by-step explanation:

5 0

3 years ago

Can someone please help me?(Fill in the blanks) This is on Khan Academy too, I need it ASAP! if you answer right I'll mark you B

Travka [436]

First divide both sides by 2:

$2x^2+7x+6=0\implies x^2+\dfrac72x+3=0$

Move the constant term to the right side:

$x^2+\dfrac72x=-3$

Since

$(x+y)^2=x^2+2xy+y^2$

we want to have

$2y=\dfrac72\implies y=\dfrac74$

Then

$\left(x+\dfrac74\right)^2=x^2+\dfrac72x+\dfrac{49}{16}$

So in our equation, we need to add 49/16 to both sides in order to complete the square:

$x^2+\dfrac72x+\dfrac{49}{16}=-3+\dfrac{49}{16}$

$\implies\left(x+\dfrac74\right)^2=\dfrac1{16}$

7 0

3 years ago

Solve for x : x - 3(2 -x) = 4x - (x - 1) and explain please thanks

Hunter-Best [27]

Solving:
$x - 3(2-x) = 4x - (x - 1)$

Delete the first parentheses by the distributive property, with the distributive property, we multiply the '3' first, then resolve it and the second parentheses eliminate by changing the sign:
$x - 6 + 3x = 4x - x + 1$
<span>Now, put the numbers with letter (incognito) to the right and numbers without letter to the left, changing the signal when changing sides.
</span> $x + 3x - 4x + x = 6 + 1$
$\diagup\!\!\!\!\!4x - \diagup\!\!\!\!\!4x + x = 7$
$\boxed{\boxed{x = 7}}\end{array}}\qquad\quad\checkmark$

Answer:
$\underline{The\:value\:of\:"x"\:is\:7}$

8 0

4 years ago

Step 3: Let LM = x. We know the lengths of the radii of each circle, so KL = 12 +

kow [346]

Answer:

Step-by-step explanation:

Step 3:

Let LM = x

OK = KP = 12 units [Radii of circle K]

LN = LP = 8 units [Radii of circle L]

Therefore, KL = KP + PL

KL = 12 + 8

= 20 units

Step 4:

Since, ΔKOM and ΔLNM are the similar triangles,

By the property of two similar triangles, corresponding sides of these similar triangles will be proportional.

$\frac{OK}{NL}=\frac{KM}{LM}$

$\frac{12}{8}=\frac{x+20}{x}$

12x = 8(x + 20) [By cross multiplication]

12x = 8x + 160

12x - 8x = 160

4x = 160

x = 40

3 0

3 years ago