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Alekssandra [29.7K]
3 years ago
8

Help me I don't get it ..........................................

Mathematics
2 answers:
marin [14]3 years ago
5 0

Answer:

5/7

Step-by-step explanation:

Amiraneli [1.4K]3 years ago
3 0

Answer:

130/231

Step-by-step explanation:

you just plug in the values of x, y, and z so:

\frac{-\frac{2}{3}*\frac{5}{7}  }{-\frac{11}{13} }

start by simplifying the top:

\frac{-\frac{10}{21}}{-\frac{11}{13} }

divide:

-\frac{10}{21}÷-\frac{11}{13}

= -\frac{10}{21} * -\frac{13}{11}

= \frac{130}{231}

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Seiji and Gavin both worked hard over the summer. Together, they earned a total of $425. Gavin earned $25 more than Seiji. How m
schepotkina [342]
S + g = 425
g = s + 25
-----------------
We will use the method of substitution:
s + s + 25 = 425
2 s = 425 - 25
2 s = 400
s = 400 : 2
s = $425
g = 200 + 25
g = $225
Answer: Seiji earned $200 and Gavin earned $225.
5 0
3 years ago
The coffee merchant plans to mix some fancy $6.50 per pound ground coffee called royal soil with 10 pounds of a lowly $2 per pou
taurus [48]

Answer and explanation:

Given:

Royal soil= $6.50 per pound

Royal peasant = $2 per pound of 10 pounds

Blend total pounds is x+10, price is unknown hence solved below

Using algebra

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$6.50(x)+$2(10)=6.50x+20/x+10(x+10)

= 6.50x+20= 6.50x²+85x+200

8 0
3 years ago
What is the sample space for each one of the following statements? (7.5 points each)
photoshop1234 [79]

We can define the sample space for a given experiment as the set of all the possible outcomes for the experiment.

For example, tossing a coin has a space sample of 2 elements, tails and heads.

The spaces are:

a) {WW, BB, WBB, BWW, WBWW, BWBB,... }

b) { 1-2-3-4, 1-2-3-5,..., 7-6-5-4,...}

a) We can write one element in this sample space as:

WBB

This would mean that first we draw a white ball, then a black ball, and then the second black ball, thus we stop drawing.

<u>So all the elements in this set will have the form</u>

{WW, BB, WBB, BWW, WBWW, BWBB,... }

As we have infinite balls in the bag, we have infinite elements in this set.

b) Now we have only 10 balls numbered from 1 to 10, and we draw 4.

So each element in the sample space can be written as:

1-2-3-4

This element means:

"first we draw ball number 1, then ball number 2, then ball number 3, then ball number 4"

Then the sample space will have the form:

{ 1-2-3-4, 1-2-3-5,..., 7-6-5-4,...}

If you want to learn more, you can read:

brainly.com/question/23125812

6 0
3 years ago
55/(4+1)+3-three cubed​
Charra [1.4K]

Answer:38

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
What is the answer?​
ella [17]
<h2><em>I believe 10.91ft but I'm not sure.</em></h2>
4 0
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