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3 years ago

Solve this for x. I have had 3 tries and can’t get the right answer.

Mathematics

2 answers:

lawyer [7]3 years ago

6 0

4x-1<-13

Add 1 to both sides.

4x<-12

Divide by 4.

x<-3

Tanya [424]3 years ago

4 0

Let's do both. For the first one, we can add 1 to both sides using the property of equality, and get 4x < -12. Then, we divide by 4, getting us x<-3. For the second, we subtract 3 from both sides to get -2x < 4. Then, we divide by -2 on both sides, but when we divide by a negative we have to switch the sign. So, we get x > -2. Hope this helps.

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Using the rule y = 8x+ 5, Find the value of y when xis 6.

denpristay [2]

Answer:

y=53

Step-by-step explanation:

Ⓗⓘ ⓣⓗⓔⓡⓔ

y=8(6)+5

y=48+5

y=53

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5 0

3 years ago

Suppose you choose a marble from a bag containing 6 red marbles , 2 white marbles and 5 blue marbles you return the first marble

algol [13]

Answer:

30/169

Step-by-step explanation:

We need to know how many marbles in the bag

6 red marbles + 2 white marbles + 5 blue marbles = 13 marbles

P (red) = red / total = 6/13

We then put the marble bad so there are still 13 marbles in the bag

P(blue) = blue /total = 5/13

P (red then blue ) = P(red) *P(blue)

= 6/13 * 5/13 = 30/169

8 0

3 years ago

Elena starts her new job working at an office supply store. She works for 6 hours and makes a total of $54.

docker41 [41]

Answer:

I believe the answer would be A.

Step-by-step explanation:

A says 6 x h is 54.

^ ^ ^

important!

6 is the number of hours.

h is how much money made per hour.

54 is the total after working 6 hours.

4 0

2 years ago

Need quick answers Please

grigory [225]

1a) coefficient 1b)variable
2a) coefficient 2b)coefficient
3a)coefficient 3b)coefficient
4a)coefficient 4b)coefficient
5a)coefficient 5b)variable

4 0

2 years ago

Please help with this

inysia [295]

Answer:

$S_{n}$ = n² + 4n ; n = 11

Step-by-step explanation:

$S_{n}$ = $\frac{n}{2}$ [2 $a_{1}$ + (n - 1)d]

~~~~~~~~~

$a_{1}$ = 5

d = 7 - 5 = 2

$S_{n}$ = $\frac{n}{2}$ [ 2(5) + 2(n - 1)] = $\frac{n}{2}$ ( 8 + 2n ) = 4n + n²

$S_{n}$  = n² + 4n

n² + 4n = 165

n² + 4n - 165 = 0

(n + 15)(n - 11) = 0 ( n ≥ 0 ) ⇒ n = 11

6 0

2 years ago