At the school book sale, Michael bought 3 books for $6. Darnell bought 5 books for $10. Are these rates equivalent? Explain your reasoning.

Answer:

21 I think, might be wrong.

Answer:

x = 2

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Step-by-step explanation:

Step 1: Define

0.4(12 - 3x) = 0.3(12x - 16)

Step 2: Solve for x

Answerr:

I think he made the errrorr.

Step-by-step explanation:

He made his errrorr on the thirrd one.

Answer:

he made an error on the third one

Answer:

a.

Step-by-step explanation:

All you have to do is distribute them

a.) -15x + 39

b.) -15x - 39

c.) 15x - 39

d.) 15 + 39

The one equivalent to -15x + 39 is A

Answer:

2

Step-by-step explanation:

yaw

Answer:

2

Step-by-step explanation

Got it correct in Edgen :D

Answer:

It's cot x :)

Step-by-step explanation:

I'm not really good at explaining,but I know that's the answer :))

Answer:

A= 132 Supplementary Angle

180 - 48

B= 132 Vertical Angle

C= 127 Supplementary Angle?

180 - 29 - 24

D= 29 Vertical Angle

E= 29 Supplementary Angle

180 - 151

F= 151 Vertical Angle

G=  24 Vertical Angle

H= 24 Complementary Angle?

This took me a while sorry. But hopefully, this helps :)

Answer:

Amount water added = 4.5 L

Step-by-step explanation:

Given:

Amount of solution = 9 L

Amount of bane-berry = 3% of 9 L = 0.27 L

Computation:

Assume;

Amount water added = x L

Total solution = 9+x L

New percentage of bane-berry = 0.27x100/(9+x)

2 = 0.27*100/(9+x)

x = 4.5 L

Amount water added = 4.5 L

Answer:

In a right triangle, the hypotenuse is the longest side, an "opposite" side is the one across from a given angle, and an "adjacent" side is next to a given angle.

Answer:

Step-by-step explanation:

Volume of a cube:

V = a3

Surface area of a cube:

the area of each face (a x a) times 6 faces

S = 6a2

Face diagonal of a cube:

By the pythagorean theorem we know that

f2 = a2 + a2

Then f2 = 2a2

solving for f we get

f = a√2

Diagonal of the solid cube:

Again, by the pythagorean theorem we know that

d2 = a2 + f2

substituting f into this equation we get

d2 = a2 + (a√2)2 = a2 + 2a2 = 3a2

solving for d we get

d = a√3

Answer:

64 packages per day

Step-by-step explanation:

Answer:

64 packages

Step-by-step explanation:

8 packages per hour so multiply that by 8 and u get 64 . This should be right but sorry if it is wrong.

Answer:

She will have $2792 at the end of her four year investment

Step-by-step explanation:

The compound interest formula is given by:

[tex]A(t) = P(1 + \frac{r}{n})^{nt}[/tex]

Where A(t) is the amount of money after t years, P is the principal(the initial sum of money), r is the interest rate(as a decimal value), n is the number of times that interest is compounded per year and t is the time in years for which the money is invested or borrowed.

Gift of $2500:

This means that [tex]P = 2500[/tex]

She shopped around and found a 4 year GIC investment that earns 2.8% interest annually.

This means that [tex]t = 4, r = 0.028, n = 1[/tex].

How much will Anna have at the end of her four year investment?

This is A(4). So

[tex]A(t) = P(1 + \frac{r}{n})^{nt}[/tex]

[tex]A(4) = 2500(1 + 0.028)^{4} = 2792[/tex]

She will have $2792 at the end of her four year investment

Answer:

Prosperly, 60%

Step-by-step explanation:

Answer:

C= 2,598,960

Step-by-step explanation:

let me know if you want a step by step explanation!

Answer:

3 (x+5)

Step-by-step explanation:

Answer:

37.5

Step-by-step explanation:

if it decreases by 1/2 every 8 hours;

( 3×8= 24)

the first 8 hours 1/2×300 =150 gram

the second 8 hours(16 hours) = 1/2×150=75 gram

the third 8 hours(24 hours) = 1/2×75= 37.5gram

Answer:

C

Step-by-step explanation:

It's because Magnesium-27 is 8 hours which makes the 300/8=37.5

Answer:

3 + 35 = 38?

Step-by-step explanation:

Answer:

b^7 / 8.

Step-by-step explanation:

Answer:

from 30.48 till 53.34

Step-by-step explanation:

3.81×8=30.48

3.81×14=53.34

The range is 30.48 to 53.34

It is a method where we find the value of a single unit from the value of multiple units and the value of multiple units from the value of a single unit.

First, let us make a note of the information we have. There are 5 ice-creams. 5 ice-creams cost $125.

Step 1: Let’s find the cost of 1 ice cream. In order to do that, divide the total cost of ice-creams by the total number of ice-creams. The cost of 1 ice-cream = Total cost of ice-creams/Total number of ice-creams = 125/5 = 25. Therefore, the cost of 1 ice cream is $25.

Step 2: To find the cost of 3 ice-creams, multiply the cost of 1 ice cream by the number of ice-creams. The cost of 3 ice-creams is cost of 1 ice-cream × number of ice-creams = 25 × 3 = $75. Finally, we have the cost of 3 ice-creams i.e. $75.

Given:

cost of gas with tax is $3.81 per gallon

But gas should be less than 14 gallons and not more than 8 gallons.

So,

=3.81×8

=30.48

3.81×14

=53.34

Hence, the range is 30.48 to 53.34,

Learn more about unitary method here:

https://brainly.com/question/22056199

#SPJ5

Hi sayooOoo ate mahal na ata kitaAaAaaa

9514 1404 393

Answer:

   x ≤ 2

Step-by-step explanation:

Maybe you're trying to solve ...

  5x - 18 ≤ -8

As with any 2-step equation, add the opposite of the constant that is on the same sides as the variable term.

  5x -18 +18 ≤ -8 +18

  5x ≤ 10 . . . . . . . . . . . simplify

Now, divide both sides by the coefficient of the variable.

  5x/5 ≤ 10/5

  x ≤ 2 . . . . . . . . . . . . . simplify

_____

Additional comment

If your comparison was < instead of ≤, use that (<) for your final answer. The same symbol is used throughout, for this problem.

Answer:

12953

Step-by-step explanation:

9514 1404 393

Answer:

  200

Step-by-step explanation:

If P is the total number of plates, we have ...

  0.59P = 118

  P = 118/0.59 = 200

There are 200 plates total.

Answer:

Negative 4

-4

Step-by-step explanation:

x+5= -23

-x+y= -1

6y= -24

-24÷6= -4

Answer:

Step-by-step explanation:

x + 5y = -23

5x - 5y =  5

6x = -18

x = -3

-3 + 5y = -23

5y = -20

y = -4

(-3, -4)

Answer:

144 sq inches

Step-by-step explanation:

3ft= 36 inches

36 * 4= 144

Answer:

I used desmos to make the graph.

Explanation:

y = x - 4

y = 6x - 10

-----------------------

x - 4 = 6x - 10

-4 = 6x - x - 10

10 - 4 = 5x

x = 1.2

-----------------------

y = x - 4

y = 1.2 - 4

y = -2.8

Answer:

the answer is D. because 5×4=20, he had a total of 40 at the end so you subtract 20 from 40 and his initial amount of songs was 20.