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3 years ago

10

lisa sold 81 magazine subscriptions, which is 27% of her class fundraising goal. how many magazine subscriptions does her class

have to sell?

1 answer:

olya-2409 [2.1K]3 years ago

6 0

300 because You have to multiply 81 times 100 and then divide by 27

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Please answer them! Thank you!

Andre45 [30]

3=2.5
4=0.1
6=9.92
7=336
8=81

7 0

3 years ago

Factor each.<br><br><br> Please help!

Naddika [18.5K]

Answer:

1) The factors of $x^2-3x+2=0$ are $\mathbf{(x-1)(x-2)=0}$

Option C is correct.

3) The factors of $x^2+2x-8=0$ are $\mathbf{(x-2)(x+4)=0}$

Option B is correct.

Step-by-step explanation:

1) Factor : $x^2-3x+2=0$

For factoring we need to break the middle term, such that there sum is equal to middle term of expression and product is equal to product of first and last term.

The middle term : -3x

We can break them as (-2x)( -x)

Solving:

$x^2-3x+2=0\\x^2-2x-x+2=0\\x(x-2)-1(x-2)=0\\(x-1)(x-2)=0$

So, factors of $x^2-3x+2=0$ are $\mathbf{(x-1)(x-2)=0}$

Option C is correct.

3) Factor: $x^2+2x-8=0$

For factoring we need to break the middle term, such that there sum is equal to middle term of expression and product is equal to product of first and last term.

The middle term : 2x

We can break them as (4x)( -2x)

Solving

$x^2+2x-8=0\\x^2+4x-2x-8=0\\x(x+4)-2(x+4)=0\\(x-2)(x+4)=0$

So, factors of $x^2+2x-8=0$ are $\mathbf{(x-2)(x+4)=0}$

Option B is correct.

7 0

3 years ago

Choose the correct translation for the given statement.

Rainbow [258]

Answer: x > 10

<u>Step-by-step explanation:</u>

NOTE: exceed means "greater than"

x < 10 <em>x is less than 10</em>

x ≤ 10 <em>x is less than or equal to 10</em>

x > 10 <em>x is greater than 10</em>

x ≥ 10 <em>x is greater than or equal to 10</em>

8 0

3 years ago

Read 2 more answers

What is the coefficient of x2 in this trinomial?

podryga [215]

Answer:

The coefficient is 1

Step-by-step explanation:

There is an imaginary 1 in front of variables that becomes the coefficient if there isn't already a number there. If it was 5x squared, the coefficient would be 5.

4 0

3 years ago

Does anyone know this ?

vodomira [7]

Answer:

Always

Step-by-step explanation:

If the irrational parts of the numbers have zero sum, the sum is rational. If not, the sum is irrational. It is true, for example, for 2 7, 3. It is false, for example, for3+2 5,−2 5 .

5 0

3 years ago

Read 2 more answers