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3 years ago

15

38% of what number is 57

1 answer:

boyakko [2]3 years ago

7 0

You can get the answer by dividing the number 57 by the decimal of the percent thirty-eight (.38), you see you multiply a decimal by a number or a number by a decimal to get a smaller number, whereas dividing like you do here gets and bigger number. ( In this case the answer to your question) So in conclusion 57 divided by .38 = 150, your answer.

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Do you think there are any ordered pairs that are solutions to BOTH y = x + 5 and y = –2x – 1? Explain.

zloy xaker [14]

Answer:

The ordered pair is $(-2,3)$

Step-by-step explanation:

$y=x+5\\y=-2x-1\\\implies x+5=-2x-1\\\implies 3x=-6\\\boxed{x=-2}\\\implies y=-2+5=\boxed {3}\\$

8 0

3 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B3%7D" id="TexFormula1" title="\frac{1}{3}" alt="\frac{1}{3}" align="absmiddle

____ [38]

The resulting fractions is 14/15

<h3>Solving equations</h3>

Given the expression shown below;

1/3 + 2/5(2 - 1/2)^2

Solve the expression in bracket

1/3 + 2/5(3/2)^2

1/3 + 2/5(9/4)

Multiply the fractions

1/3 + 18/20

Find the LCM

20+36/60

56/60

28/30

14/15

Hence the resulting fractions is 14/15

Learn more on fractions here; brainly.com/question/78672

#SPJ1

3 0

2 years ago

If f(x)=2x^2+(1000/x), find the average rate of change of f(x) from x=a to x=a+h.

galina1969 [7]

Answer:

$\frac{\frac{1000}{x+h}-\frac{1000}{x}}{h}$ is your average rate of change,

Step-by-step explanation:

average rate of change is

$\frac{f(a+h)-f(a)}{a+h-a}$ , by slope formula

simplify this to get $\frac{f(a+h)-f(a)}{h}$ , which is the definition of the derivative as h goes to 0

$\lim_{h \to 0} \frac{f(a+h)-f(a)}{h}$

since you defined x=a, we can substitute a for x and vice versa to find our derivative.

$\lim_{h \to 0} \frac{(2x^2+\frac{1000}{x+h})-(2x^2+\frac{1000}{x})}{h}$

simplifying

$\lim_{h \to 0} \frac{\frac{1000}{x+h}-\frac{1000}{x}}{h}$ (your average rate of change)

6 0

3 years ago

3 1/4% of 800?<br><br><br> Please help

asambeis [7]

The answer for this problem is 26.

7 0

3 years ago

Read 2 more answers

Write the first four terms of the sequence. rule start at 5 1/2, add 1 1/5

Hitman42 [59]

Answer:

$5\frac{1}{2},6\frac{7}{10},7\frac{9}{10},9\frac{1}{10}$

Step-by-step explanation:

The first term of the sequence is

$a_1=5\frac{1}{2}$

To find the second term add $1\frac{1}{5}$ to the first term;

$a_2=5\frac{1}{2}+1\frac{1}{5}=6\frac{7}{10}$

To find the third term add $1\frac{1}{5}$ to the second term;

$a_3=6\frac{7}{10}+1\frac{1}{5}=7\frac{9}{10}$

To find the fourth term add $1\frac{1}{5}$ to the third term;

$a_4=7\frac{9}{10}+1\frac{1}{5}=9\frac{1}{10}$

The first four terms are

$5\frac{1}{2},6\frac{7}{10},7\frac{9}{10},9\frac{1}{10}$

7 0

3 years ago