All categories

3 years ago

PLEASE HELP ME I AM BIENG TIMED! I WILL GIVE A BRANLIEST AND POINTS!

Mathematics

2 answers:

marusya05 [52]3 years ago

3 0

In doing this you can use the factoring method to do this faster. Start by dividing both sides by two to simplify the equation. X^2 now equals 100.

You can move 100 to the other side of the equation so that x^2-100=0. You can now factor and solve using the zero product property.

x^2-100=0
(x+10)(x-10) = 0
x equals 10 and -10.

Ostrovityanka [42]3 years ago

3 0

Answer:

ill help if you can spell "bieing" the right way

Step-by-step explanation:

just saying

You might be interested in

An expression is shown below 3(m+5+9m)

crimeas [40]

Answer:

3m+15+27m

Step-by-step explanation:

30m+15=0

m= -0.2

8 0

3 years ago

Read 2 more answers

(PLEASE ANSWER ASAP I JUST NEED TO CHECK MY ANSWER PLEASE EXPLAIN ALSO)

Free_Kalibri [48]

2.just subtract one from morning and half a hour is 30 minutes so it would be 2 hours left

8 0

3 years ago

Read 2 more answers

15 1/2-3=c what is the answer for c

love history [14]

Answer:12.5

Step-by-step explanation:

First: Multiply 15 times 2 which equals 30.

Second: Add 30 plus 1 which equals 31.

Third: Subtract 31/2 minus 3 which will give you 12 1/2

8 0

4 years ago

Kira John and Ryan sent a total of 112 text messages during the weekend. Kira sent 8 fewer messages than Ryan. John sent 4 times

Softa [21]

Answer:

Kirasent 16 and Ryan sent 96

Step-by-step explanation:

I got this because Kira is x-8 and Ryan is 4x. 4x-x-8=112 is equal to 5x=120. So x=24.Kira has 16 when plugging in x and Ryan has 96 because 4 times 24 is 96.

4 0

3 years ago

A group of students are intending to offer a present to a friend. If each one pays 3000 LL.

Elanso [62]

Answer:

There are 8 friends and the presents costs $30,000

Step-by-step explanation:

Let x be the number of students and y be the price of the present. Their contributions can be expressed as:

$3000x=y-6000\ \ \ \ \ \ ...i\\\\4000x=y+2000\ \ \ \ \ \ \ \...ii$

#Make y the subject in equation i then substitute in ii:

$y=3000x+6000\\\\\#substitute \ in \ ii\\\\4000x=y+2000\\\\4000x=(3000x+6000)+2000\\\\1000x=8000\\\\x=8\\\\y=3000\times 8+6000\\\\y=30000$

Hence, there are 8 friends and the present is priced at $30,000

3 0

3 years ago