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kykrilka [37]
3 years ago
11

2/3b+5=20-b can someone help me out plz because i keep getting this wrong

Mathematics
1 answer:
sasho [114]3 years ago
4 0

Answer:

b=9.

Step-by-step explanation:

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18 pts + brainliest to right/best answer
Bogdan [553]

Two numbers that add up to 2 and multiply to -35

-5 and 7

Rewrite the expression using the above;

<u>(x - 5)(x + 7)</u>

7 0
3 years ago
Scientists are preparing two satellites to be launched. The equation y=400x represents the number of miles, y, that the satellit
Andrews [41]

Answer:

2400 miles

Step-by-step explanation:

So the first equation is pretty straight forwards, it's in the slope-intercept form y=mx+b where m is the slope, and b is y-intercept, since as x increases by 1, the value y increases by m, which by definition is what the slope is, so m is the slope. In this context the slope is how many miles in x hours. So Space Explorer B flies 400 miles per hour. The amount of miles that Space Explorer A flies per mile can be calculated by dividing the 36400 by the 13 hours it had to travel. This gives you 2800 miles. So to find how many fewer miles Space Explorer B travels than Space Explorer A you subtract the 2 slopes. 2800 - 400 = 2400. So Space Explorer B travels 2400 fewer miles than Space Explorer A

5 0
2 years ago
Form a union for the following sets. K = {2, 3, 5, 8} L = {3, 5, 7}
Crazy boy [7]

Answer:

Given the sets:

K = {2, 3, 5, 8} and L = {3, 5, 7}

To find the union of K and L i.e, K \cup L

Union set defined as the union (denoted by U) of a collection of sets is the set of all elements in the collection.

K \cup L = \{2,3,5,8\} \cup \{3,5,7\} =\{2,3,5,7,8\}

Therefore, union for the following sets is, {2,3,5,7,8}.

8 0
3 years ago
Read 2 more answers
What is the difference of 5 + 2x? 4 3 6​
slava [35]
I guess 7x but it not a choice so...
6 0
3 years ago
Markia had some cookies. She gave four to her sister. Then, she divided the remainder into two halves, and she still had five co
marishachu [46]

Answer:

Markia had 14 cookies.

Step-by-step explanation:

Let's represent the total amount of cookies as y.

We know that after she gave away 4 cookies and divided the remainder by 2, she had 5 cookies left.

This can represented as an equation.

\frac{y - 4}{2} = 5

To solve this equation we have to isolate the y.

\frac{y - 4}{2} = 5

Multiply both sides by 2 to isolate the y - 4:  y - 4 = 10

Add 4 to both sides to isolate the y:  y = 14

The total amount of cookies is 14.

4 0
3 years ago
Read 2 more answers
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