4 years ago

Ten times the sum of half a number x and 4 is 7?

1 answer:

5 0

If we turn this into an eq we get 10*((x/2)+4) =7
Divide both sides by ten
(x/2)+4 = 7/10
Then -4 on both sides
x/2=-3 3/10
mutiple both sides by 2
x= -6 6/10
x= -6.6

You might be interested in

What are the solution(s) of x2-4-0? X=-4 or X-4 X=-2 or X= 2 X=2 X=4

Molodets [167]

Answer:

X = - 2 or X = 2

Step-by-step explanation:

*completing the square*

X^2 - 4 = 0

X^2 = 4

X = +-√4

x = +-2

x= -2, 2

*factoring*

X^2 - 4 = 0

(x-2)(x+2) = 0

|. |

x = 2, x = -2

________________________________

(x-2)(x+2) = x(x+2) - 2(x+2) = x^2 + 2x - 2x - 4 = x^2-4

5 0

3 years ago

ms.edwards wants to buy pizza for her kids. she buys a salad for $20 and each pizza costs $12. if she spent a total of $80 how m

Leona [35]

Answer:

Step-by-step explanation:

She spent a total amount of $80...

she bought herself a salad of $20......

$20 dollar subtracted from $80 is $60......

and if a pizza cost $12......

$60 divide by $12 is equal to 5

therefore she bought 5 pizzas for her kids

6 0

3 years ago

Yeasmin has a cup with 27 milliliters of milk in it. She pours another 34 milliliters of milk into the cup. She then drinks 14 m

ser-zykov [4K]

47 milliliters will be left

7 0

3 years ago

Read 2 more answers

Just the image below.

nlexa [21]

Answer:

1) 2x^3-2x^2+4x+20

Step-by-step explanation:

line up the equations, having each variable aligned with the similar variable, and distribute the minus sign across the parenthesis

7x^3 + 4x + 13

-(5x^3 + 2x^2 - 7)

---------------------------------

2x^3 - 2x^2 +4x +20

5 0

3 years ago

Label each statement as TRUE or FALSE.

aleksklad [387]

Answer:

True

False

True

False

True

False

Step-by-step explanation:

8 0

2 years ago