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Mandarinka [93]

2 years ago

7

hope plans to swim 12 laps in the pool each lap is 50 meters she has already swam 144 meters what percentage has she already swi

m

1 answer:

SCORPION-xisa [38]2 years ago

6 0

So do 50 times 12 is 600. So all you have to do is divide 144 by 600 which is .24 so she already swam 24%

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John wants to make cookies. To make cookies, he need 2 over 3 of a cup of flour per batch of cookies. If John has 4 cups of flou

Mnenie [13.5K]

$\dfrac{2}{3} \text { cups = } 1 \text { batch}$

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Find 1 cup :
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$1 \text { cup = } 1 \div \dfrac{2}{3} \text { batch}$

$1 \text { cup = } 1 \times \dfrac{3}{2} \text { batch}$

$1 \text { cup = } \dfrac{3}{2} \text { batch}$

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Find 4 cups :
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$4 \text { cups = } \dfrac{3}{2} \times 4 \text { batch}$

$4 \text { cups = } \6 \text { batches}$

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Answer: John can make 6 batches with 4 cups of flour.
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6 0

2 years ago

(75 points) A roller coaster will only run with a certain number of people on board. The graph below represents the solution of

Veseljchak [2.6K]

Answer:

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Step-by-step explanation:

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3 0

2 years ago

Read 2 more answers

If x+a is a factor of 2x²+2ax+5x+10,find a.

vazorg [7]

If $x+a$ is a factor of the polynomial, it means that $-a$ is a root of the polynomial.

In fact, if a polynomial $p(x)$ has a root $x_0$ (i.e. $p(x_0)=0$ ), then the polynomial is divisible by $(x-x_0)$

In your case, you know that the polynomial is divisible by $(x+a)=(x-(-a))$ , so $-a$ is a solution.

Let's evaluate $p(-a)$ and set it to zero:

$2(-a)^2+2a(-a)+5(-a)+10 = 0 \iff 2a^2-2a^2-5a+10=0 \iff -5a+10 = 0 \iff a = 2$

We can check the answer: if $a=2$ the polynomial becomes

$2x^2+2(2)x+5x+10 = 2x^2+9x+10$

And we're claiming that $-a=-2$ is a root of this polynomial:

$2(-2)^2+9(-2)+10 = 2\cdot 4 - 18 + 10 = 0$

5 0

2 years ago

(05.02 LC)What is the area, in square inches, of the figure shown here? A parallelogram with a height of 4inches is shown. The h

antoniya [11.8K]

Answer:

36 in²

Step-by-step explanation:

The figure that is been described is a Parallelogram.

The area of a Parallelogram is = Base × Height

From the question, the Height of the Parallelogram = 4 inches

The Base of the Parallelogram is calculated as the Length or base of the rectangle + base of the triangle

= 5 inches + 4 inches

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Area of the Parallelogram = 9 inches × 4 inches

= 36 square inches or 36 in²

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2 years ago

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ira [324]

Answer:

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Step-by-step explanation:

5 0

2 years ago

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