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SVEN [57.7K]
3 years ago
11

What is, 7 3/10+6 1/3+2 7/10?

Mathematics
2 answers:
Novay_Z [31]3 years ago
8 0
We are going to add 7 3/10 and 2 7/10 first. \boxed{\boxed{7 \frac{3}{10}}}+\boxed{\boxed{2 \frac{7}{10}}}}=\boxed{\boxed{9 \frac{10}{10}}}. Now we are going to add \boxed{\boxed{9{ \frac{10}{10}}}} by \boxed{\boxed{6{ \frac{1}{3}}}}. \boxed{\boxed{9{ \frac{10*3}{10*3}}}}=\boxed{\boxed{9{ \frac{30}{30}}}} \ and \ \boxed{\boxed{6 \frac{1*10}{3*10}}}}=\boxed{\boxed{6{ \frac{10}{30}}}}. Finnally we add.\boxed{\boxed{9{ \frac{30}{30}}}}+{\boxed{\boxed{6{ \frac{10}{30}}}}=\boxed{\boxed{15 \frac{40}{30}}}}.. Last, but not least we simplify,\boxed{\boxed{15{ \frac{30:10}{40:10}}}}=\boxed{\boxed{15 \frac{3}{4}}}}. Therefore, your answer is \boxed{\boxed{15 \frac{3}{4}}}}. Hoped I helped. :)
snow_lady [41]3 years ago
6 0

7 3/10 + 6 1/3 + 2 7/10

First change them to improper fractions

73/10 + 19/3 + 27/10

now find the common denominator which would be 30

73/10 = 219 /30

19/3 =   190/30

27/10 =  81 /30

now add (219 + 190 + 81) = 490/30

now divide 490 ÷ 30 = 16 1/3

Your answer is 16 1/3

Hope this helps. :)

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in a small town named Irun, the population today is 5746. For the last 6 years, the population has grown by 12% every year. If t
mafiozo [28]

Answer: The correct answer is 20,236 people

Step-by-step explanation: If the population is 5746 people today and every year the population increases by 12%, this means that 690 more people come to Irun. (5746 x 0.12= 689.52 rounded to 690) Thus if you multiply 690 x 21 (years)= 14,490 people. 14,490 + 5746= 20,236 people in 21 years

6 0
2 years ago
What is the value of x?
Alexxandr [17]

These are vertical angles, so they are equal in measurements.

First, simplify [2(x + 10)]

Distribute 2 to all terms within the parenthesis

2(x + 10) = 2x + 20

Next, place both expressions equal to each other

2x + 20 = 3x - 30

Solve for x. Isolate the variable. Subtract 3x and 20 from both sides

2x (-3x) + 20 (-20) = 3x (-3x) - 30 (-20)

2x - 3x = -30 - 20

Simplify

-x = -50

Isolate the x. Divide -1 from both sides

-x/-1 = -50/-1

x = 50

50 is your answer for x

hope this helps

6 0
3 years ago
Read 2 more answers
I WILL MARK BRAINLIEST PLEASE HELP FIND ANGLE DEB <br><br> ITS DUE AT 12 PLEASE HELP PLEASE
Gemiola [76]

Answer:

\boxed {\boxed {\sf \angle DEB = 111 \textdegree}}

Step-by-step explanation:

We want to find angle DEB. We know AB is perpendicular to AC, CD is congruent to CE and angle B is 48 degrees.

ABC is a triangle. The angles in a triangle must add up to 180 degrees. Therefore:

  • ∠A+∠B+∠C= 180°

We know two angles: ∠B= 48° and ∠A= 90° (the little square denotes a right angle).

  • 90°+48°+ ∠C= 180°                               <em>Substitute values in.</em>
  • 138°+ ∠C =180°                                      <em>Add</em>  
  • 138°-138° ∠C= 180°-138°                       <em>Subtract 138 from both sides.</em>        
  • ∠C= 42°    

Note that angle C is part of another triangle. It is isosceles because the two legs (CD and CE) are congruent. Therefore, the two base angles (E and D) are congruent.

  • ∠C+∠D+∠E= 180°
  • ∠C+ 2∠D= 180°                             <em>Angles D and E are congruent</em>
  • 42°+ 2∠D= 180°                             <em>Substitute 42 in for angle C</em>
  • 42°-42° +2∠D= 180°-42°               <em>Subtract 42 from both sides.</em>
  • 2∠D=  138°
  • 2∠D/2= 138°/2                              <em>Divide both sides by 2.</em>
  • ∠D= 69°

∠D and ∠E equal 69 degrees.

Angle CED (∠E)  and DEB are on a straight line together. Therefore, they are supplementary and equal 180 degrees.

  • ∠CED+ ∠DEB= 180
  • 69° +∠DEB= 180°                    <em>Substitute 69 for angle CED</em>
  • 69°-69° +∠DEB= 180°-69°      <em>Subtract 69 from both sides</em>
  • ∠DEB=111°

Angle DEB is equal to <u>111 degrees</u>

8 0
2 years ago
Wha<br> T is the additive inverse of (-12)
kirill [66]

Answer:

The additive inverse of (-12) is 12

Step-by-step explanation:

You know that the absolute value of 12 is 12 so this can be verified by: 12 +(- 12) = 0. Hope this helps!

8 0
2 years ago
Read 2 more answers
A real estate company would like to see if the average sale price of townhouses in a particular school district has changed in t
Dennis_Churaev [7]

Answer:

Step-by-step explanation:

a) We would set up the hypothesis test.

For the null hypothesis,

H:0 µ = 280000

For the alternative hypothesis,

H1: µ ≠ 280000

This is a 2 tailed test

Since the population standard deviation is given, z score would be determined from the normal distribution table. The formula is

z = (x - µ)/(σ/√n)

Where

x = sample mean

µ = population mean

σ = population standard deviation

n = number of samples

From the information given,

µ = 280000

x = 294365

σ = 22898

n = 36

z = (294365 - 280000)/(22898/√36) = 3.76

b) Since α = 0.05, the critical value is determined from the normal distribution table.

For the left, α/2 = 0.05/2 = 0.025

The z score for an area to the left of 0.025 is - 1.96

For the right, α/2 = 1 - 0.025 = 0.975

The z score for an area to the right of 0.975 is 1.96

In order to reject the null hypothesis, the test statistic must be smaller than - 1.96 or greater than 1.96

Therefore, the rejection regions are area to the left of - 1.96 and to the right of 1.96 on the normal distribution curve.

The calculated test statistic is 3.76 for the right tail and - 3.76 for the left tail

c) Since - 3.76 < - 1.96 and 3.76 > 1.96, we would reject the null hypothesis.

3 0
3 years ago
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