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2 years ago

9

Hi! My teacher shows us a video and thats it, so I'm really struggling on our math test today. Can you help me answer this quest

ion? Thank you :)

1 answer:

zzz [600]2 years ago

7 0

Answer:

A and E

Step-by-step explanation:

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You have a bag of chocolate candy. Ten of them are red, 7 are brown, 12 are green, and 9 are blue. What is the probability that

Brrunno [24]

It would be $\frac{10}{38}$ , or, in simplest form, $\frac{5}{19}$ .

You get this by adding all the marbles to find the total number of marbles. <em>10+7+12+9</em>, which equals <em>38</em>.

You have <u>10 red marbles out of 38 total</u>, so that is represented by $\frac{10}{38}$ !

5 0

2 years ago

Read 2 more answers

Can someone please check this I'm not sure if it's y=126 or is the 126 negative

timurjin [86]

So to solve for y, subtract 108 from each side.
The equation becomes -y=126

Since you don't want y to be negative then divide each side by -1 this will flip all of the signs (positives become negative and vice versa) without changing the number.

So the equation is now y= -126

6 0

2 years ago

Michaela spent 5/6 of an hour reading on each of 3 days this week. She spent 3/4 of an hour on each of 2 days this week doing sc

Kay [80]

5/6 of an hour is 50 min. So 50 times 3 equals 150 min for reading. 3/4 of an hour is 45 min. 45 times 2 equals 90 min for science. And 1/2 of an hour is 30 min. So 30 times 4 equals 120 mins for math. Add 150,90, and 120 min all together and you get 360 mins total. Divide 360 by 60, and you get 6 hours total that Michaela spent on reading, math, and science. Not 2 1/2.

7 0

2 years ago

What is the quadratic in vertex form that has a vertex of (-1, 5)<br><br> Options in image

dimaraw [331]

Answer:

Third option

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

Step-by-step explanation:

In this case we must write a quadratic equation in the vertex form.

We have the vertice. (-1, 5)

We know that the vertex form for a quadratic equation is:

$y = (x-h) ^ 2 + k$ .

Where (h, k) is the vertex.

So if the vertex is (-1, 5), the equation sought is:

$y = (x-(-1)) ^ 2 + 5$

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

Therefore the answer is the Third option.

5 0

3 years ago

Read 2 more answers

Find the value of the variable 4/8=8/a

babunello [35]

Answer:

a = 16

Step-by-step explanation:

4/8= 1/2

you have to what 8 is half of

8×2= 16

a=16

8 0

3 years ago