MATHEMATICS HIGH SCHOOL

If 5x+6=10, what is the value of 10x+3?

A) 4
B) 9
C) 11
D) 20

Answers

Answer 1

Answer:

Answer: 11

Step by step explanation:

Step 1 : solve the first equation to find the value of x

5x + 6 = 10

5x = 10 – 6

5x = 4

X = 4/5

Step 2 : Substitute the value of x in the second equation

10x + 3 = ?

10 ( 4/5) + 3

= 40 / 5 + 3

= 40 + 15 /5

= 55 / 5

= 11

Answer 2

Answer: $5x+6=10$
$5x=10-6$
$5x=4$
$x=4/5$

If we substitute the value of x into the second equation

$10x+3$
$10* 4/5+3$
$8+3=11$
Therefore, your solution is 11

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what are the solutions of the equations x^2+14x=-130? (1point) a.2,-16 b.10,-13 c.-2,16 d.no solution

Answers

$x^2+14x=-130\nx^2+14x+49=-81\n(x+7)^2=-81$

no solutions in $\mathbb{R}$

in $\mathbb{C}$
$x+7=-√(-81) \vee x+7=√(-81)\nx=-7-√(-81) \vee x=-7+√(-81)\nx=-7-9i \vee x=-7+9i\n$

Please help im desperate if f(x) = 5 + 3x find the value of the dependent variable if the if he independent variable is -4 and if you know hoew to do this pls answer my other question

Answers

Answer:

[see below]

Step-by-step explanation:

The dependent variable is considered 'y' or 'f(x)'.

The independent variable is considered 'x'.

$f(x)=5+3x\n\nf(-4)=5+3(-4)\n\nf(-4)=5-12\n\n\boxed{f(-4)=-7}$

Hope this helps.

Answer: the dependent variable is -7

Step-by-step explanation:

this is really simple all we have to do is plug -4 instead of x

so the equation is going to be f(-4)=5+3(-4)

now we just solve like normal so that would be...

f(-4)= 5+ -12 (3*-4 is -12)

f(-4)= -7

i hope it helps

Which is another way to check the sum of 52+23+10+78

Answers

well first off those numbers add up to 163.

A way to check this is to add 52 with 23 which is 75 then add 78 by 10 which is 88 now add 75 with 88 which is 163

Simplify 20 + (2 + r).