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2 years ago

Seven times the difference of 13 and a number

Mathematics

1 answer:

olga nikolaevna [1]2 years ago

7 0

Answer:

The equation would be 7 x 13 + x

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Help please!!! What is 2.365x12.4 And please explain step by step!!

sweet-ann [11.9K]

Answer: 29.326

Step-by-step explanation: Simplifying

2.365 * 12.4 = 0

Multiply 2.365 * 12.4

29.326 = 0

Solving

29.326 = 0

7 0

2 years ago

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What is the slope of the line that passes through the points (-6, -8)(−6,−8) and (-14, 4) ?(−14,4)? Write your answer in simples

creativ13 [48]

Answer:

$\huge\boxed{slope=-\dfrac{3}{2}}$

Step-by-step explanation:

The formula of a slope:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

We have two points (-6, -8) and (-14, 4).

Substitute

$x_1=-6,\ y_1=-8,\ x_2=-14,\ y_2=4$

$m=\dfrac{4-(-8)}{-14-(-6)}=\dfrac{4+8}{-14+6}=\dfrac{12}{-8}=-\dfrac{12:4}{8:2}=-\dfrac{3}{2}$

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3 years ago

Last month , Luke and Stefen sold candy to raise money for their debate team . Stefen sold 1/5 as much candy as Luke did . If Lu

Natalija [7]

Answer:

3/20

Step-by-step explanation:

stefan sell 1/5 × 3/4 = 3/20 boxes of candy

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2 years ago

What's 5 - the square root of x + 10 = the square root of 7 - x

Tcecarenko [31]

$\bf 5-\sqrt{x+10}=\sqrt{7-x}\impliedby \textit{squaring both sides}
\\\\\\
(5-\sqrt{x+10})^2=(\sqrt{7-x})^2
\\\\\\
(5^2)-10\sqrt{x+10}+(x+10)=7-x
\\\\\\
35-10\sqrt{x+10}+x=7-x\implies 28-10\sqrt{x+10}+2x=0
\\\\\\
2x+28=10\sqrt{x+10}\implies x+14=5\sqrt{x+10}\impliedby 
\begin{array}{llll}
squaring\ both\\
sides\ again
\end{array}
\\\\\\
$

$\bf (x^2)+28x+(14^2)=5^2(x+10)\implies x^2+28x+196=25x+250
\\\\\\
\begin{array}{lcclll}
x^2&+3x&-54&=0\\
&\uparrow &\uparrow \\
&-6+9&-6\cdot 9
\end{array} \implies (x+9)(x-6)=0\implies 
\begin{cases}
x+9=0\\
\boxed{x=-9}\\
-----\\
x-6=0\\
\boxed{x=6}
\end{cases}$

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3 years ago

PLEASE HELP ON THIS! ILL GIVE BRAINLY AND 50 POINTS!

IRINA_888 [86]

what is the question?

6 0

2 years ago

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