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3 years ago

- 10 + x < - 2 what is the solution of the inequality shown below

Mathematics

1 answer:

Mama L [17]3 years ago

5 0

Answer:

x<8

Step-by-step explanation:

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Plssssss helppppppppppp

lubasha [3.4K]

I believe the answer is A

5 0

3 years ago

Read 2 more answers

The product of two numbers is 144, but their sum is -24. What are these two numbers?

stepladder [879]

Answer:

The two numbers are - 12 and - 12 .

Step-by-step explanation:

Let the two numbers be x and y then

By the question

x * y = 144

or x = 144 / y ....... I)

Again

x + y = - 24

Or 144/y + y = - 24

or, ( 144 + y²) / y = - 24

or, 144 + y² = - 24y

y² + 24y + 144 = 0

y² + ( 12 + 12 ) y + 144 =0

y² + 12y + 12y + 144 = 0

y(y + 12 ) + 12 ( y + 14) = 0

( y + 12 ) ( y + 12 ) = 0

Either

y + 12 =0

y = - 12

Now

x = 144 / - 12 = - 12

Therefore the two numbers are - 12 and - 12 .

Hope it will help :)❤

4 0

3 years ago

the sum of three numbers is 59. the second number is less than the first. the third number is 2 times the first. what are the nu

larisa [96]

There should be multiple answers here.

15 + 14 + 30 = 59

Or

16 + 11 + 32 = 59

Or

17 + 8 + 34 = 59

I’m sure there’s more but these are just the few I did.

8 0

3 years ago

Please I need the answer according to steps

saveliy_v [14]

Answer:

Factorise out x and y terms:

${ \tt{ = \frac{ {x}^{2} {y}^{4} (5x - 3y)}{45} }} \\$

7 0

3 years ago

two friends drive from dallas going to el paso, a distance of 600 miles. mary ann zilke travels by highway and arrives at the sa

Ann [662]

The average speed of Carla and mary is 50 and 60 miles per hour respectively.

<u>SOLUTION: </u>

Given, Two friends drive from dallas going to el paso, a distance of 600 miles.

mary and zilke travels by highway and arrives at the same destination 2 hours ahead of carla canola

The average speed of mary ann's car was 10 miles per hour faster than carla's car,

We have to find the average speed of each car?

Now, let the speed of Carla be s miles per hour, then speed of mary will be s + 10 miles per hour.

And let the time taken by Carla be t, then time taken by mary will be t – 2 hours

Now, we know that, distance = speed x time

Then, for mary ⇒ 600 miles = $( s + 10 ) \times (t - 2)$

And for Carla ⇒ 600 miles = $s \times t$

Now, equate both the equations.

(s + 10) (t – 2) = st ⇒ s(t – 2) + 10(t – 2) = st

St – 2s + 10t – 20 = st

2s – 10t + 20 = 0

s – 5t + 10 = 0

since $s \times t = 600$ the above equation becomes,

$\mathrm{s}-5 \times \frac{600}{s}+10=0$

By multiplying equation with s,

$\begin{array}{l}{s^{2}+10 s-3000=0} \\\\ {s^{2}+60 s-50 s-3000=0} \\\\ {s(s+60)-50(s+60)=0} \\\\ {(s+60)(s-50)=0}\end{array}$

s = 50 or -60 [ neglect –ve values, as speed can't be negative]

So, speed of Carla is 50 miles per hour, then speed of mary is 50 + 10 = 60 miles per hour.

Hence, the average speed of Carla and mary is 50 and 60 miles per hour respectively.

7 0

3 years ago