Elena and Noah used different methods to compute 0.23 x 1.5. Both calculations were correct. Analyze the 2 methods.

Answer:

y=1/3x-4

Step-by-step explanation:

plug this equation into Desmos, a graphing calculator site, and the point and you can see it goes right through it! i hope this helped!

Answer:

Danny charges $45 for 5 hours of swimming lessons

Answer: Danny

Step-by-step explanation:

45/5=9 and 24/2=12 Danny charges 4.5 an hour and Martin charges 6 an hour so Danny is better.

Answer:

B for banana

Step-by-step explanation:

Answer:

1.19 is the price for Yasmin.

16p is the cost for Ben.

0.52 is the cost for 1.

Step-by-step explanation:

Divide them all and you will get your answer.

Answer:

38436

Step-by-step explanation:

(25624/1) * (3/2) = 76872/2

76872/2 = 38436

Answer:

[tex]\ \\ \\ \sqrt{113}=c[/tex]

Step-by-step explanation:

Use the Pythagorean theorem as the triangle is a right triangle (90 degree angle is present)Your formula is set as

[tex]a^{2}+b^{2}= c^{2} \\\\7^{2}+8^{2}= c^{2} \\\\64+49= c^{2} \\\\113=c^{2\\\\\\\\\[/tex]

Answer:

78.54in²

Step-by-step explanation:

i used the formula

x-3=–5

answer:

subracting 3 from both sides (by rule ll)

= 3-(-5)=-2

now ,x=-2 (ans)

Answer:

92m!

Step-by-step explanation:

46 times 46 is 92

please give me brainliest!!!<3

Answer:

155

Step-by-step explanation:

( 25 x 4 ) + ( 3 x 15 ) + 10 = 155

Answer:

120

Step-by-step explanation:

Answer:

7

Step-by-step explanation:

42 divided by 6

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

From the given information:

For the first 10 ratings, the average value is 75.

For maintaining the average of 84 ratings for the first 21st rating, we have:

Total rating for 21 units = 84 * 21 = 1764

For 10 units = 84 *10 = 840

Now, the initial 10 unit average = 75 * 10 =750

The first 10 unit + last 10 unit = 840 + 750 = 1590

The difference = 1764 - 1590 =174 unit

So, in the 14th rating, he has to go with 174 units.

Answer:

it's true. because it has more type of sums and head pain will come

Answer:

When two equations have the same slope but different y-axis, they are parallel. Since the two equations never intersect, the system has no solutions.

you can decide your answer from that explanation!

Answer:

g(4) = 10

f⁻¹(11) = 1

h{g(4)} =

if h(x) = (10/x) – 3 = 7

if h(x) = 10/(x – 3) = 10/7

____________

f⁻¹(x) = (x - 4) / 7

Answer:

Step-by-step explanation:

5/6 x = 13.50             Multiply both sides by 6

5x = 13.50 * 6

5x = 81                       Divide by 5

x = 81/5

x = 16.2

Given that,

ABC is a right angle triangle, C is the right angle.

To find,

cosB = ?

Solution,

The sum of angle of a triangle is equal to 180 degrees. So,

∠A + ∠B + ∠C = 180°

Put ∠C = 90°

∠A + ∠B + 90° = 180°

∠A + ∠B = 90°

Taking cos with each term.

cosA+cosB = cos (90)

cosA+cosB = 0

cosB=-sinA

Hence, cosB = sinA.

Answer:

10.25 which is equal to letter c

Step-by-step explanation:

I used a calculator and figured out which equals it

Answer:

She cooked 3.1 pounds

Step-by-step explanation:

6.2 x 0.5 = 3.1

9514 1404 393

Answer:

  1/2, 3/10

  1/21, 8/27

Step-by-step explanation:

Fractions are multiplied by multiplying the numerators and expressing that product over the product of the denominators:

 [tex]\dfrac{a}{b}\times\dfrac{c}{d}=\dfrac{ac}{bd}[/tex]

In several cases here, the numerator product has factors in common with the denominator product. Those can be cancelled, reducing the product fraction to lowest terms.

  [tex]\dfrac{3}{4}\times\dfrac{2}{3}=\dfrac{3\cdot2}{4\cdot3}=\dfrac{3\cdot2}{3\cdot2\cdot2}=\boxed{\dfrac{1}{2}}\\\\\dfrac{4}{5}\times\dfrac{3}{8}=\dfrac{4\cdot3}{5\cdot8}=\dfrac{4\cdot3}{4\cdot2\cdot5}=\boxed{\dfrac{3}{10}}\\\\\dfrac{1}{6}\times\dfrac{2}{7}=\dfrac{1\cdot2}{6\cdot7}=\dfrac{2}{2\cdot3\cdot7}=\boxed{\dfrac{1}{21}}\\\\\dfrac{4}{9}\times\dfrac{2}{3}=\dfrac{4\cdot2}{9\cdot3}=\boxed{\dfrac{8}{27}}[/tex]

Answer:

52 inches

Step-by-step explanation:

4×13=52 inches

Answer:

The percentage increase would be 20%

Step-by-step explanation:

worked it out

The percent increase from 15 to 18 is 20%.

To find the percent increase from 15 to 18, we can use the following formula Subtract the initial value from the final value, then divide the result by the absolute value of the initial value.

Percent Increase = (New Value - Old Value) / Old Value * 100

Using this formula, let's calculate the percent increase:

Percent Increase = (18 - 15) / 15 * 100

Percent Increase = 3 / 15 * 100

Percent Increase = 0.2 * 100

Percent Increase = 20

Therefore, the percent increase from 15 to 18 is 20%.

To know more about percent increase click here :

https://brainly.com/question/34048889

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Answer:

9.047619047619048

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

8/5=1.6

Answer:

b

Step-by-step explanation:

8/5=1.6

Answer:

A

Step-by-step explanation:

The total class is 10

the number of girls is 7

ratio of girls to total students - 7:10

Answer:

For [tex]x \in\mathbb{C}[/tex]

[tex]x = -2i[/tex]

[tex]x = 2i[/tex]

[tex]x = 7[/tex]

Step-by-step explanation:

[tex]f(x)=x^3-7x^2+4x-28[/tex]

For [tex]f(x) = 0[/tex]

[tex]x^3-7x^2+4x-28 = 0[/tex]

We can easily factor the expression [tex]x^3-7x^2+4x-28[/tex] by grouping.

[tex]x^3-7x^2+4x-28 = (x^3-7x^2)+(4x-28) = x^2(x-7)+4(x-7) = \boxed{(x^2+4)(x-7) }[/tex]

Now we have

[tex](x^2+4)(x-7) = 0[/tex]

Therefore,

[tex]x^2+4 = 0 \text{ or } x-7 = 0[/tex]

So,

[tex]x^2 = -4 \implies x = \pm\sqrt{-4}[/tex]

Once [tex]\sqrt{-1} = i[/tex]

[tex]x = \pm\sqrt{-4} = \pm\sqrt{4}\sqrt{-1} = \pm 2i[/tex]