All categories

2 years ago

Lin solved the equation

Mathematics

1 answer:

Alekssandra [29.7K]2 years ago

3 0

Answer: x=1/2

she was wrong, it's supposed to be

Step-by-step explanation: 8(x−3)+7=2x(4−17)

Step 1: Simplify both sides of the equation.

8(x−3)+7=2x(4−17)

(8)(x)+(8)(−3)+7=2x(4−17)(Distribute)

8x+−24+7=−26x

(8x)+(−24+7)=−26x(Combine Like Terms)

8x+−17=−26x

8x−17=−26x

Step 2: Add 26x to both sides.

8x−17+26x=−26x+26x

34x−17=0

Step 3: Add 17 to both sides.

34x−17+17=0+17

34x=17

Step 4: Divide both sides by 34.

34x/34=17/34 x=1/2

You might be interested in

X^2 + y^2 = 25 x^2 + y^2 = 19

olga55 [171]

What do you need help on.

7 0

3 years ago

Write an exponential function of the form f(x) = ab* whose graph passes through the

Andrews [41]

Answer:

Step-by-step explanation:

let f(x)=ab^x

when x=1,f(x)=6

6=ab

when x=2,f(x)=18

18=ab^2

divide

$\frac{ab^2}{ab}=\frac{18}{6}\\b=3\\ab=6\\3a=6\\a=2\\f(x)=2(3)^x$

4 0

3 years ago

A woman bought some large frames for $18 each and some small frames for $8 each at a closeout sale. If she bought 21 frames fo

IrinaVladis [17]

Answer:

8 large frames and 13 small frames

Step-by-step explanation:

Given:
$18 each = large frames

$8 each = small frames

To Find:

⇒ Bought 21 frames for $248, find how many of each type she bought

Solve:

1 Large frame costs = 18 $

Therefore, x large frames costs = 18x $

{where x is the number of large frames she bought}

1 Small frame costs = 8 $

Therefore, x Small frames costs = 8y $

{where y is the number of small frames she bought}

By the given condition :

18x + 8y = 248 {equation 1}

x + y = 21 {equation 2}

Solve these equations simultaneously, from second equation we get :

x = 21- y

18⋅(21−y)+8y= 248

378 - 18y+8y = 248

-10y = -130

y = 13

Put y = 13 in eq x = 21- y

x = 21 - y

x = 21 - 13

x = 8

So the woman bought 8 large frames and 13 small frames.

~lenvy~

5 0

2 years ago

what is the most appropriate center for 27 142 145 146 154 162 /12592106/70400e23?utm_source=registration

Klio2033 [76]

27 142 145 146 154 162

27 is definitely an outlier. You could temporarily drop it and focus on
{142 145 146 154 162}. The median of this 5-numeral set is 146; it'd be a good "center." So would the mean (142 +145 +146 +154 +162) /5. No one value shows up more than once, so forget about "mode."

6 0

3 years ago

If ben has 3 apples and give 1, how many does he have left?

Anastasy [175]

Answer:

he has 2 apples left

Step-by-step explanation:

no. of apples=3

apples given=1

now,

no. of remaining apples= 3-1

5 0

3 years ago

Read 2 more answers