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svetlana [45]
2 years ago
12

Brad says that if a second number is 125% of the first number than the second number must be 75% of the second number is he corr

ect justify your answer
Mathematics
1 answer:
elena-s [515]2 years ago
5 0

Answer:

Incorrect.

Step-by-step explanation:

Let, the first number is x, and the second number is y. Given, the second number is 125% of the first number. So, the equation will be

y = 1.25 x

Or, y= 5/4x

Now, multiplying it with 4/5, we get, x= 4/5y

Or, x= 0.80 y

But, Brad is saying the first number must be 75% of the second number. But here we see that the first number is 80% of the second number. That's why Brad is incorrect.

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PLEASE ANSWER QUICKLY!!
Masja [62]

Answer:

224

Step-by-step explanation:

1st Digit - 9 (1 way)

2nd Digit - 2, 3, 5, 7 (4 ways)

3rd Digit - (10-2) ways

4th Digit - (10-3) ways

Therefore, the number of ways are 1 × 4 × 8 × 7

= 224 ways

5 0
3 years ago
I need answer quickly
Anton [14]

Answer:

√85

Step-by-step explanation:

a² + b² = c²

6² + b² = 11²

36 + b² = 121

b² = 121 - 36

b² = 85

b = √85

4 0
2 years ago
Read 2 more answers
Sally agreed a compound interest of 5.5% for a fixed term. If she invested £800 to this agreement, then what was her total at th
Rom4ik [11]

Answer:

£1045.57

Step-by-step explanation:

Using compound interest formula then

A=P(1+i)^{n}

Where A= the future value of the investment/loan, including interest

P = the principal investment amount

r = the annual interest rate

n = the number of times that interest is compounded per unit t

A=800(1+0.055)^{5}\approx 1045.57

Hence her amount t the end of 5 yrs is $1045.57

3 0
3 years ago
CAN SOMEONE HELP (AND HELP ME UNDERSTAND)
Mama L [17]
Consider angle XZY in the attached figure. It is always 1/2 the measure of arc XY, no matter where Z may be located on the major arc XZY. This is true even when ZY is very short.

Now, consider what happens when Z falls on top of tangent point Y. The angle is still half the measure of arc XY, still 62°.

Selection C is appropriate.

_____
I apologize for any confusion caused by my choice of Z as the name of the point I added. Nothing in my explanation is intended to refer to the Z already shown in the unmodified figure.

5 0
3 years ago
The reasures of two angles have a sum of 180°. The measures of the angles are in a ratio of 5:1. Determine the measures of both
Mademuasel [1]

Answer:

150° : 30°

Step-by-step explanation:

total ratio

5 + 1 = 6

ratio 1

180 ÷ 6 = 30

ratio 5

30 × 5 = 150

3 0
2 years ago
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