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Fed [463]
3 years ago
15

50 POINTS! WILL MARK BRAINLEST! NEED IN 10 - 15 MINUTES!

Mathematics
1 answer:
masha68 [24]3 years ago
7 0

Answer:

21

(2,14)

14/2=7

14+7=21

21 is final answer

Erika had a 95% chance of guessing wrong

20 can be seen as 100%

the % will go down by 5's because of the original number

.5*20=

This will give you a 95% success rate.

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How are factors and multiples helpful in solving problems?
blondinia [14]
Factors and multiples are helpful in working with expanding and reducing fractions, as well as finding patterns in numbers
8 0
4 years ago
Read 2 more answers
What is the value of x in the equation 2(x+3) = 4(x-1)?<br> own
11111nata11111 [884]

Step-by-step explanation:

Solving

2x + 6 = 4x - 4

Bringing like terms on one side

6 + 4 = 4x - 2x

10 = 2x

10 / 2 = x

5 = x

8 0
3 years ago
4^3 is equivalent to? *
GREYUIT [131]

Answer:

4+4+4

Step-by-step explanation:

4^3 means 4 cubed which is equal to 4 added three time

4 0
3 years ago
What is the GCF of -2xy and -9y
NNADVOKAT [17]

Answer:

- y(2x + 9)

Step-by-step explanation:

The GCF doesn't have to be a number. In this case, it is -y because both the -2xy and -9y share it. It's also easier when you take out a negative. Once you take the GCF out, your new expression should be:

- y(2x + 9)

5 0
3 years ago
£864.00 to be accrued<br> after £800 is invested with<br> 2% pa simple interest.
Vsevolod [243]

Answer: 4 years

Step-by-step explanation:

Your question isn't complete but I believe that you want to calculate the number of years. This will be:

Simple Interest = PRT/100

where,

Interest = 864 - 800 = 64

Principal = 800

Rate = 2%

Therefore, 64 = 800 × 2 × T /100

Cross multiply

64 × 100 = 1600T

6400 = 1600T

T = 6400/1600

T = 4

Therefore, time will be 4 years

6 0
3 years ago
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