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julsineya [31]
3 years ago
8

I’m so confused I don’t know how to subtract fractions. What is 2+2-1 2/3

Mathematics
2 answers:
Alexxandr [17]3 years ago
7 0

Answer:

its 7/3 or you could put 2 1/3

Step-by-step explanation:

malfutka [58]3 years ago
5 0

Answer:

2 \frac{1}{3}

Step-by-step explanation:

To subtract fractions you convert the whole numbers into fractions.

2 + 2 = 4

4 - 1 \frac{2}{3}

We can convert 4 to \frac{12}{3}because 12 divided by 3 equals 4. We can convert

1 \frac{2}{3} to  \frac{5}{3}  because 5 divided by 3 equals 1 \frac{2}{3}

We can now subtract our converted fractions:

\frac{12}{3}  minus \frac{5}{3}  = \frac{7}{3}

So our answer is 7/3.

This simplifies to:

2 \frac{1}{3}

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Miguel asked Sandra to make 90 cookies for his party. Sandra needs ¼ cup of sugar to make 15 cookies. She incorrectly calculated
slega [8]

Answer:

She incorrectly multiplied 15 X 1/4

Step-by-step explanation:

7 0
3 years ago
Solve for x: 4x(3y-2)=7x+11
kupik [55]

Answer:

x=11(12y-15)

Step-by-step explanation:

4x(3y-2)=7x+11

12xy-8x=7x+11

12xy-8x-7x=11

12xy-15x=11

x(12y-15)=11

x(12y-15)/(12y-15)=11/(12y-15)

x=11/(12y-15)

7 0
3 years ago
Read 2 more answers
In ΔQRS, the measure of ∠S=90°, the measure of ∠R=29°, and SQ = 5.8 feet. Find the length of RS to the nearest tenth of a foot.
taurus [48]

Answer:

10.5 ft

Step-by-step explanation:

In ΔQRS,

  • m∠S=90°
  • m∠R=29°,
  • SQ = 5.8 feet.

See the diagram below.

The triangle is a Right Triangle,

Using trigonometric ratios,

Tan R=\dfrac{|SQ|}{|RS|} \\Tan 29^\circ=\dfrac{5.8}{|RS|}\\$Cross multiply$\\|RS|XTan 29^\circ=5.8\\|RS|=\dfrac{5.8}{Tan 29^\circ}\\$=10.5 ft (to the nearest tenth of a foot)

7 0
3 years ago
Is 9/16 closest to 0, 1/2, 1, or 9
REY [17]

Answer:

1/2

Step-by-step explanation:

9/16 is equal to 0.5625 . The closest number to this is 0.5 which is the same as 1/2

8 0
3 years ago
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A golfer keeps track of his score for playing nine holes of golf​ (half a normal golf​ round). His mean score is 8080 with a sta
solniwko [45]

Answer:

Therefore the mean and standard deviation of his total score if he plays a full 18 holes are 160 and 11\sqrt2 respectively.

Step-by-step explanation:

Given that,

For the first 9 holes X:

E(X) = 80

SD(X)=13

For the second 9 holes Y:

E(Y) = 80

SD(Y)=13

For the sum W=X+Y, the following properties holds for means , variance and standard deviation :

E(W)=E(X)+E(Y)

     and

V(W)=V(X)+V(Y)

⇒SD²(W)=SD²(X)+SD²(Y)        [ Variance = (standard deviation)²]

\Rightarrow SD(W)=\sqrt{SD^2(X)+SD^2(Y)}

∴E(W)=E(X)+E(Y) = 80 +80=160

            and

∴SD(W)=\sqrt{SD^2(X)+SD^2(Y)}

              =\sqrt{11^2+11^2}

               =\sqrt{2.11^2}

               =11\sqrt2

Therefore the mean and standard deviation of his total score if he plays a full 18 holes are 160 and 11\sqrt2 respectively.

                                               

4 0
3 years ago
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