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Hitman42 [59]
3 years ago
13

I NEED HELP PLEASE! If you can help me with this you amazing! Thank you

Mathematics
1 answer:
krek1111 [17]3 years ago
6 0

Answer:

a=-3

Step-by-step explanation:

we have

a-2=\frac{3+6a}{3}

Solve for a

That means ----> Isolate the variable a

Factor 3 in the numerator right side

a-2=\frac{3(1+2a)}{3}

Simplify right side

a-2=1+2a

subtract a both sides

a-2-a=1+2a-a

-2=1+a

subtract 1 both sides

-2-1=1+a-1

-3=a

Rewrite

a=-3

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2 x{6+[12 divided by (3+1)]}
Bezzdna [24]

Answer:

18

Step-by-step explanation:

2 x(6+(12÷(3+1)))=18

Hope this helps you!!

3 0
4 years ago
Please help 20 points
lora16 [44]

Answer:

C

Step-by-step explanation:

plz i need brainliest

5 0
3 years ago
Read 2 more answers
Here is a triangular prism.
Ipatiy [6.2K]
Try 30cm..?
I‘m not sure, but that’s the best answer that I have currently.
8 0
3 years ago
Line pq is the perpendicular bisector of line MN, what is QN?
GREYUIT [131]
We know that
if PQ <span>is the perpendicular bisector of line MN
then
MQ=QM
and
NP=MP
so
6x+1=10x-17----------> 10x-6x=17+1-----> 4x=18---------> x=18/4----> x=4.5

QN=2x+5-----> QN=2*4.5+5-----> QN=14

the answer is
QN is 14</span>
4 0
3 years ago
Charlotte invests £5000.
lutik1710 [3]

Answer:

y = 1%

Step-by-step explanation:

From the formula;

Interest; i = PRT/100

P = £5000

R = 10%

After 1 year, we have;

i = 5000 × 10 × 1/100 = £500

Amount is now; 5000 + 500 = £5500

Since interest rate is now y% every year after the first one, then;

After 2nd year;

i = (5500 × y × 1)/100

i = 55y

So amount is now;

5500 + 55y

After 3rd year, interest is now;

i = (5500 + 55y) × y × 1/100

i = 55 + 0.55y²

Amount is now;

(5500 + 55y) + (55 + 0.55y²)

Since she has £5610.55 after 3 years, then;

(5500 + 55y) + (55 + 0.55y²) = 5610.55

0.55y² + 55y + 5555 - 5610.55 = 0

0.55y² + 55y - 55.55 = 0

From quadratic formula, y = 1%

5 0
3 years ago
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