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2 years ago

80% of how many goats is 32 goats

2 answers:

3 0

The answer is 40. you already know that you have to multiply something by 0.80 to get 32. so you just do the inverse and divide. so 32/0.80 + 40. to check your work just multiply 40 by 0.80 and you should get 32.
:)

MrRa [10]2 years ago

3 0

Percent means parts out of 100

'of' means multiply

so
80% of how many is 32
translate
80/100 times how many=32
8/10 times how many=32
4/5 times how man=32
times both sides by 5/4 to clear fractio
how many=160/4
how many=40

answer is 40 goats

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Sari is teaching her best friend how to factor trinomials with a leading coefficient greater than 1. She starts with the trinomi

Eva8 [605]

Answer:

See explanation

$2x^2+5x+3=(x+1)(2x+3)$

Step-by-step explanation:

1. Make sure that the trinomial is written in the correct order - the trinomial must be written in descending order from highest power to lowest power. In you case, the trinomial must be written as

$2x^2+5x+3$

2. Decide if the three terms have anything in common, called the greatest common factor or GCF. If so, factor out the GCF. Do not forget to include the GCF as part of your final answer.

In your case, coefficients 2, 5 and 3 do not have common factors, so go to the next step.

3. Multiply the leading coefficient and the constant, that is multiply the first and last numbers together:

$2\cdot 3=6$

4. List all of the factors from step 3 and decide which combination of numbers will combine to get the number next to x:

$6=1\cdot 6\\ \\ \bf{6=2\cdot 3}$

5. After choosing the correct pair of numbers, you must give each number a sign so that when they are combined they will equal the number next to x and also multiply to equal the number found in Step 3:

$2+3=5$

6. Rewrite the original problem with four terms by splitting the middle term into the two numbers chosen in step 5:

$2x^2+5x+3=2x^2+2x+3x+3$

7. Now that the problem is written with four terms, you can factor by grouping:

$2x^2 +2x+3x+3=(2x^2+2x)+(3x+3)=2x(x+1)+3(x+1)=(x+1)(2x+3)$

6 0

2 years ago

Which statement is false?

Karolina [17]

Answer:

D is the correct answer

Step-by-step explanation:

Not all rectangles are squares.

4 0

3 years ago

Read 2 more answers

Y= -3x^2-24x-46 write in vertex form

mario62 [17]

ANSWER

$y= -3{(x + 4)}^{2} + 2$

EXPLANATION

The given function is:

$y= -3x^2-24x-46$

Factor -3 for the first 2 terms.

$y= -3(x^2 + 8x)-46$

We add and subtract the square of the coefficient of x.

$y= -3(x^2 + 8x + {(4)}^{2} ) - - 3( {4)}^{2} -46$

Factor the perfect square trinomial.

$y= -3 {(x + 4)}^{2} ) + 48 -46$

The vertex form is:

$y= -3{(x + 4)}^{2} + 2$

6 0

3 years ago

The graph of an equation is shown below:

olasank [31]

Answer:

(-2, -3)

Step-by-step explanation:

solutions are all the points where the line intersects

5 0

2 years ago

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balandron [24]

AB :
(-6,1)(-9,4)
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CD:
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4 0

3 years ago