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Tom [10]
3 years ago
6

What is the answer to 3x+2x+7=22

Mathematics
2 answers:
gavmur [86]3 years ago
8 0

Answer:

Step-by-step explanation:

3x+2x+7=22

5x+7-7=22-7

5x=15

5x/5=15/5

X=3

asambeis [7]3 years ago
5 0

Answer:

X=3

Step-by-step explanation:

3x+2x+7=22

therefore 3x+2x is equal to 5x..

5x+7=22

5x=22-7

5x=15

take 5 to divide through

15 divide by 5x =3x.

therefore x=3

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What is the value of s and the length of side BC if ABCD is a rhombus?
Natali5045456 [20]

Step 1

<u>Find the value of s</u>

we know that

In a Rhombus all sides are congruent

so

AB=BC=CD=DA

AB=9s+29\\CD=10s-16

equate AB and CD

9s+29=10s-16\\

Combine like term

10s-9s=29+16\\

s=45\ units

<u>The answer Part a) is</u>

the value of s is 45\ units

Step 2

<u>Find the value of side AB</u>

AB=9s+29

substitute the value of s

AB=9*45+29=434\ units

Remember that the sides are congruent

AB=BC=CD=DA

therefore

<u>the answer Part b) is</u>

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4 0
3 years ago
Read 2 more answers
What is 4/5 of 2? write answer in decimal form.?
mylen [45]

The decimal form of 4/5 is .8, which can also be written as 0.8 or 0.80.Fractions can be converted into decimals using a calculator or by doing the math manually

5 0
3 years ago
A city has a population of 230,000 people. Suppose that each year the population grows by 9%. What will the population be after
zloy xaker [14]

<u>Answer:</u>

<h2><u>385,733</u></h2>

Step-by-step explanation:

If it grows by 9% each year, you can simply do the current population times 109%. Because its an additional 9%.

230,000*109% = 250,700

After the first year, there is a population of 250,700 people.

250,700*109% = 273,263

After the second year, there is a population of 273,263 people.

273,263*109% = 297,856.67

After the third year, there is a population of 297,856.67 people.

297,856.67*109% = 324,663.77

After the fourth year, there is a population of 324,663.77 people.

324,663.77*109% = 353,883.509

After the fifth year, there is a population of 353,883.509 people.

353,883.509*109% = 385,733.025

After the sixth year, there is a population of 385,733.025 people

Round it up to 385,733 people.

7 0
3 years ago
A population of caribou in a forest grows at a rate of 2% every year. If there are currently 273 caribou, which function represe
Feliz [49]

Answer:

Step-by-step explanation:

D

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6 0
3 years ago
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Eduardwww [97]
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A. is not a function, because its ordered pairs are all over the place, and the value 4 in the x - value has two values assigned - 0 and 3, which makes it invalid.

B. may be a linear function. Its ordered pairs aren't jumping all over the place.
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D.  is invalid because there is two x - values for 2. 

Therefore, the answer is B.
3 0
3 years ago
Read 2 more answers
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