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3 years ago

Solve x(−2) 2 =4(−2)

Mathematics

1 answer:

slavikrds [6]3 years ago

3 0

Hi there,

X x (-2) x 2 = 4 x (-2)
- x = - 2

Hence, X = 2

Hope this helps :)

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Quantavius took a hiking with some friends.The friend started early and walked a while before stoping to each lunch.After lunch

kifflom [539]

Answer:

$7\frac{3}{8} \ miles$

Step-by-step explanation:

Given:

After lunch the friends walked 6 3/4 miles before arriving at the end of the trail.

The trail is 14 1/8 miles long.

Question asked:

How long did the friends walk before lunch ?

Solution:

Let the friends walk before lunch in miles = $x$

As total length of trail is given $14\frac{1}{8}\ miles$ , we can conclude:

Total length of trail = The friends walk before lunch in miles + The friends walk after lunch in miles

$14\frac{1}{8} =x+6\frac{3}{4} \\ \frac{14\times8+1}{8}=x+\frac{6\times4+3}{4} \\\frac{113}{8} =x+\frac{27}{4}$

Subtracting both side by $\frac{27}{4}$

$\frac{113}{8} -\frac{27}{4} =x+\frac{27}{4}-\frac{27}{4}$

Taking LCM of 4 and 8 ,we get 8

$\frac{113-54}{8} =x\\\\\frac{59}{8} =x\\\ \\7\frac{3}{8} = x$

Therefore, the friends walk before lunch is $7\frac{3}{8} \ miles$ .

6 0

4 years ago

X(x-2y)-(y-x)2= the answer is

GenaCL600 [577]

Answer:

-y^2

Step-by-step explanation:

x(x-2y)-(y-x)^2=

Distribute

x^2 -2xy -(y-x)^2=

Foil

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

Distribute the minus sign

x^2 -2xy -y^2 +2xy-x^2=

Combine like terms

-y^2

8 0

3 years ago

It costs $3.45 to buy 34 lb of chopped walnuts. How much would it cost to purchase 7.5 lbs of walnuts? GIVING BRAINLIEST *URGENT

lesantik [10]

Answer:

$0.75

Step-by-step explanation:

$3.45 ÷ 34 lb. = $0.10 per pound (rounded)

$0.10 x 7.5 = $0.75

It would cost $0.75 to buy 7.5 lbs of chopped walnuts

I'm sorry if wrong! You are loved and you are beautiful/handsome!

-Bee

7 0

3 years ago

Read 2 more answers

Help me please!

marin [14]

Answer:

30 and 18

Step-by-step explanation:

john caught 18

Peter got 30

I think

4 0

3 years ago

My finall question what is the answer? :)

dybincka [34]

In index form it’s 5^18

8 0

3 years ago