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2 years ago

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Find an equivalent fraction for each fraction? 20/100 2/8 90/100

1 answer:

WINSTONCH [101]2 years ago

5 0

For all of them you can just simplify to their lowest fractions like this and they'll still be equivalent 2/10, 1/4, 9/10

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Hey can you please help me posted picture of question

Ira Lisetskai [31]

Answer:
40x² + 65x + 25

Explanation:
We will just multiply each term from the first bracket by each term from the second and then combine like terms to get the final expression.

This would be done as follows:
(5x + 5)(8x + 5)
5x(8x) + 5x(5) + 5(8x) + 5(5)
40x² + 25x + 40x + 25
40x² + 65x + 25

Hope this helps :)

6 0

2 years ago

How many mL are there in 3,700 microliters?

rewona [7]

Answer:

3.7 mL

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

Someone help me with this please ASAP thank you

Blizzard [7]

Answer: B. 20

Step-by-step explanation: 1/5 of 25 is 5 and 5 of those are red so 25-5=20

6 0

2 years ago

Read 2 more answers

A yo-yo factory has fixed operating costs of $4500 per day plus costs of $1.20 per yo-yo produced. If a yo-yo sells for $4.80, w

Ede4ka [16]

4500 + 1.20x < 4.80x
4500 < 4.80x - 1.20x
4500 < 3.60x
4500/3.60 < x
1250 < x.......minimum number would be 1251

5 0

2 years ago

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