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ehidna [41]
3 years ago
13

What is the amount of change? Show your work a. 85% of 210 b. 125% of 38

Mathematics
1 answer:
Stolb23 [73]3 years ago
7 0
Basically you need to multiply the percent by the number.

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Answers and work for answers please
larisa [96]

Answer:

1) 5 2) 6 3) 1.25 or -1.75

Step-by-step explanation:

1. x^2 - 25 = 0

x^2 - 25 = 0

First, add 25 to both sides!

x^2 = 25

Now square root both sides.

x = 5

2.  (x-2)^2 = 16

First, square root both sides.

(x-2) = 4

Add 2 on both sides.

(x) = 6

x = 6

3. Quadratic Formula = -b ± \sqrt{b^{2}-4ac } / 2a

Substitute in:

-6 ±\sqrt{7^{2} -4(2)(6)} / 2(2)

-6±\sqrt{49 - 48} / 4

Both forms:

-6 + \sqrt{1} / 4

5 / 4 = 1.25

Negative:

-6 - 1 / 4

-7 / 4 = -1.75

8 0
2 years ago
Given g(x)=-2x-3, then what is g(2m+7)
Whitepunk [10]

Answer:

-4m-17

Step-by-step explanation:

g(2m+7) = -2*(2m+7) -3

= -4m -14 -3

= -4m -17

8 0
2 years ago
How much taller is a meter stick than the loveseat
Westkost [7]
A meter stick is about 3 yards longer
5 0
3 years ago
Read 2 more answers
Ben has 1/2 of a loaf of bread if he and his 3 friends share the 1/2 loaf equally how much of the whole loaf does each person ge
Dvinal [7]
Given:
1/2 loaf of bread
3 friends

1/2 ÷ 3 ⇒ 1/2 * 1/3 = 1*1 / 2*3 = 1/6

In dividing fractions, get the reciprocal of the divisor and multiply it to the dividend
6 0
3 years ago
Read 2 more answers
8% of 70 is what number? (please explain)
Bingel [31]
Do a proportion
8/100= x/70
Cross multiply and divide
70 x 8= 560
560 divided by 100= 5.6
Answer is 5.6

You also could have done .08 x 70 which is also 5.6
7 0
3 years ago
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