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3 years ago

15

Question 3 (4 points)

1 answer:

madreJ [45]3 years ago

7 0

Answer:

4^21 / 5^6

Step-by-step explanation:

Given:

(4^7 / 5^2)³

4^(7*3) ÷ 5^(2*3)

4^21 ÷ 5^6

Hence,

(4^7 / 5^2)³ = 4^21 / 5^6

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PLEASE ANSWER ASAP 50 POINTS!!!!!

Elina [12.6K]

The answer is 4 for #1.

8 0

3 years ago

Please help me with my math home work

Ket [755]

<u>page 1:</u>

$-\frac{8}{3} m = 6$

$-8m = 6(3)$

$-8m = 18$

$m = \frac{18}{-8}$

$m = -\frac{9}{4}$

$m = -2\frac{1}{4}$

<u>page 2</u>:

7)

$0.8x = 19$

$x = 19/0.8$

$x = 23.75$

8)

$0.12x = 1$

$x = 1/0.12$

$x =$ $\frac{25}{3}$

$x = 8\frac{1}{3}$

5)

3.3(x+4)

3.3x + 13.2

b.

$9-5\:\frac{1}{2}x-3\left(-2x+1\right)$

$9-\frac{11}{2}x-3\left(-2x+1\right)$

$6x-\frac{11}{2}x+9-3$

$x\frac{1}{2}+6$

$\frac{1}{2}x+6$

c.

$2.2(3.1+x)+3x$

$6.82+2.2x+3x$

$6.82+5.2x$

<u>page 3:</u>

1.

3/4 x = 60

x = (60*4)/3

x = 80

2.

2/5 x =42

x = (42*5)/2

x =105

3.

3/5 y = 40

y = (40*5)/3

y = $\frac{200}{3}$

y = $66\frac{2}{3}$

4.

$-\frac{8}{3}m =6$

$m = \frac{6*3}{-8}$

$m = -\frac{9}{4}$

$m = -2\frac{1}{4}$

5.

$\frac{5}{6} x =4$

$x = \frac{4*6}{5}$

$x =4.8$

6.

$\frac{5}{3} x =12$

$x = \frac{12*3}{5}$

$x =7.2$

4 0

3 years ago

Read 2 more answers

if the length of a rectangle is increased by 30 percentage and the width of the same rectangle is decreased by 30 what is the af

LUCKY_DIMON [66]

Answer:

The area will decrease by 9%.

Step-by-step explanation:

The area of a rectange is given by the formula below.

$\boxed{\text{Area of rectangle}= \text{length}×\text{width}}$

Let the original length and width of the rectangle be L and W respectively.

Start by finding the original area:

<u>Original </u><u>dimensions</u>

Length= L= 100%L

Width= W= 100%W

Original area= LW

Let's find the dimensions of the new rectangle in terms of L and W.

<u>New dimensions </u>

Length= (100% +30%)L= 130%L

Width= (100%-30%)W= 70%W

New area

$= \frac{130}{100} L \times \frac{70}{100} W$

$= \frac{91}{100} LW$

= 91% LW

Comparing the new area with the original area:

100% LW- 91% LW= 9% LW

∴ The area will decrease by 9%.

*Note that percentage is equivalent to dividing a number by 100.

4 0

2 years ago

This is timed and I just need to see if i’m right! please check my work :)

Misha Larkins [42]

Hi! actually, the y intercept is 0, 8. hopefully this helps

4 0

3 years ago

It takes 212121 minutes for 555 people to paint 777 walls. How many minutes does it take 333 people to paint 555 walls?

Papessa [141]

Solution: We are given that:

5 people can paint 7 walls in 21 minutes

Therefore, 1 person can paint 7 walls in $21 \times 5=105$ minutes

Which means 1 person can paint 1 wall in $\frac{105}{7} =15$ minutes

Now, 3 people can paint 1 wall in $\frac{15}{3} =5$ minutes

Therefore, 3 people can paint 5 walls in $5 \times 5=25$ minutes

3 0

3 years ago