MATHEMATICS MIDDLE SCHOOL

Please need help fast in solving the following equation

Answers

Answer 1

Answer:

Answer:

Option C: x=-9

Step-by-step explanation:

Given that:

-5(x+6)= 15

Multiplying -5 into the bracket:

-5x-30 = 15 ( "-" sign multiplied by "+" gives "-" )

-5x=15+30

-5x=45

Dividing both sides by -5 we get

x = -9

I Hope it will help you!

Answer 2

Answer:

Answer:

Step-by-step explanation:

First you do -5 times X, which gives you -5X.

Then you do -5 times positive 6, which gives you -30.

You'd have an equation like : -5X - 30 = 15.

Then you have to get rid of whatever's not connected to the X, which would be the 30. So to get rid of a negative number (since it has a subtraction in front of it, it would be negative) you'd have to add it to the other side of the equation. So you'd add 30 to the negative 30, eliminating the 30 altogether, and then you'd add 30 to the 15, resulting in 45. Which would have the equation as -5X = 45. To get rid of the -5 in front of the X, you'd have to divide both sides of the equation by -5. 45/-5 results in the answer of X = -9

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A plane takes off at 6:00 am, traveling north at 270 miles per hour. A jet takes off at 7:00 am, traveling north at 460 miles per hour. At what time will the jet overtake the plane? (Round your answer to the nearest minute.)

Answers

Answer:

The jet will overtake the plane at 8:25 am.

Step-by-step explanation:

The distance $D_p$ traveled by the plane after time $t$ since it took off is modeled by the equation

$D_p = 270t$

And the distance $D_j$ traveled by the jet after time $t$ since the plane took off is given modeled by the equation

$D_j =460t-460$ (we set this up such that at $t=1,$ $D_j= 0$ )

Now, the jet will overtake the plane when $D_j> D_p$ :

$460t-460> 270t$

$460t-270t> 460$

$190t>460$

$\boxed{t> 2.42\: hours }$

Which is 2 hours and 25 minutes after 6:00 am, or at 8: 25 am; therefore, the jet will overtake the plane at 8:25 am.

Answer:

the answer is 8:25

Step-by-step explanation:

The soccer field measures 80 meters by 120 meters. Which is the correct unit of measurement to figure out how much fertilizer is needed to cover the field?

Answers

To find out the area of the field, you just need to multiply 80 meters by 120 meters.

80 meters * 120 meters = 9600 meters²

Therefore, the unit of measurement to figure out how much fertilizer is needed to cover the field is meters².

Half of the candies in a jar are gumdrops. One-fourth of the candies are chocolates. There are 4 lollipops. There is an equal number of lollipops and chocolates. How many gumdrops are there?

Answers

If there is and equal amount of lollipops and chocolates, we know that 4 is 1/4 of the whole jar so,
1/4=4
Then,
2/4 which is 1/2 is 8
There are 8 gumdrops

Question in the file below. (Khan Academy)

Answers

We can suggest this equation.
(6x+x)+(6x+x)+110º+110º=360º
7x+7x+220º=360º
14x=360º-220º
14x=140º
x=140º/14
x=10º

Answer. x=10º

Work is attached. :D

Would you rather....

Answers

Answer:

Fred's Fit Place: 4 month membership every trimonthly

Step-by-step explanation:

Fred's Fit Place is less expensive first of all.

Secondly, You could by a one month membership every month, a two month membership every 6 months, a three month membership every 4 months or a 4 month membership trimonthly. If you do the math, the 4 month membership trimonthly is least expensive.

Answer:

Fred Fit's Place

Step-by-step explanation:

Please help asap. please and thank you

Answers

Answer:

1: 4 || 2: 1.5 || 3: 8 || 4: 1 || 5: 5 || 6: 9 ||

Step-by-step explanation:

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