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Luden [163]
2 years ago
14

I need help please i am giving 100 points and brainliest

Mathematics
2 answers:
liubo4ka [24]2 years ago
8 0

Answer:

-3

Step-by-step explanation:

-7x + 4x = 9

-3x = 9

x = 9/(-3)

<h3>x = -3</h3>

<h2>MARK ME AS BRAINLIST </h2>
Fed [463]2 years ago
7 0
Firstly, you want to add: -7x+4x= -3x
2nd: divide -3 on BOTH sides which would look like:
-3x=9
- -
-3 -3
which would then equal
x= -3
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2b^3+5=2(3)^3+5 when b=3
seraphim [82]

Answer:

2b^3+5=2(3)^3+5 when b=3

5 0
3 years ago
Help please i am stuck on what to do
nikklg [1K]

Answer:

These are confusing Beth , b/c you have to remember that they will add to 100%

Step-by-step explanation:

so

green = 3*  yellow

100% = green + yellow + 35% + 25%

100% = 3* yellow + yellow +60%

40% = 4* yellow

10% = yellow

30% = green

there are 14 purples in the bag , which is 35% of total

14/.35 = 40

there are a total of 40 pins

so

4    are yellow  (10% of 40  or 40* 0.1)

12 are green    (30% of 40  or 40*0.3)

14  are purple  (35% of 40 or 40*0.35)

10  are grey  (25% of 40  or 40*0.25 )

see?  : |

6 0
3 years ago
Libby earns $10 each hour for babysitting. Let m = the money she earns, and t = the time in hours she is babysitting. What equat
elena55 [62]

Answer:

$10t=m

Step-by-step explanation:

If for each hour is $10.

She would earn the number of  hours times $10.

Example: She did babysitting for 4 hours this weekend. The equation is $10(4)=m or $10 x 4 = m.  m=40

8 0
3 years ago
How do u solve 63=-9d?
Len [333]
-9d = 63
you divide both side by -9

sooo...

d = -7
7 0
3 years ago
Robert gets a loan from his bank.
Goryan [66]

Answer:

£10,200

Step-by-step explanation:

Simple interest = principal × rate × time

Principal = £6000

Rate = 7% = 0.07

Time = 10 years

Simple interest = principal × rate × time

= £6000 × 0.07 × 10

= £4,200

Total = simple interest + principal

= £4,200 + £6,000

= £10,200

He would have to pay back a total of £10,200 in 10 years

5 0
3 years ago
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