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shepuryov [24]
2 years ago
6

2/5 + 1/4 + 7/10 = what's the answer ​

Mathematics
1 answer:
kotegsom [21]2 years ago
4 0

Convert 2/5, 1/4 and 7/10 to fractions with like denominators.

\bf{\dfrac{2\times4}{5\times4}+\dfrac{1\times5}{4\times5}+\dfrac{7\times2}{10\times2} \ \ \to \ \ \ Multiply }

\bf{\dfrac{8}{20}+\dfrac{5}{20}+\dfrac{14}{20}    }

Since 8/20,5/20 and 14/20 have the same denominator, add their numerators to add them up.

\bf{\dfrac{8+5+14}{20} \ \ \to \ \ \ Add. }

\green{\underbrace{\red{\boxed{\purple{\boxed{\bf{\blue{\frac{27}{20}  }}}}}} \ \ \to \ \ \bf{\red{Answer}}}}

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Were would coordinates 8,7 be after a feflection over the x axis
Svet_ta [14]

Answer:

(8, -7)

Step-by-step explanation:

well since it flip over the x-axis only, the 8 stays the same, however, the 7 flips completely to the second quadrant and becomes -7.

Hope this helped and have a amazing day.

3 0
3 years ago
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egoroff_w [7]

Answer:I’m bored

Step-by-step explanation:

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3 years ago
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IF I HAVE A LAPTOP COMPUTER THAT MEASURES 30.8×6.6×39.8 CENTIMETERS...WHAT SIZE CASE DOES IT REQUIRE
soldi70 [24.7K]

Answer:

8090.54

Step-by-step explanation:

30.8*6.6*39.8

4 0
2 years ago
The ordered pair (1, -2) is a solution to the system of linear equations.
vesna_86 [32]

Answer:

False

Step-by-step explanation:

2x + y = 0

Try (1, -2)

2(1) + (-2) = 0

2 + (-2) = 0

0 = 0

The solution works on the first equation.

-x + 2y = 5

-(1) + 2(-2) = 5

-1 - 4 = 5

-5 = 5

The solution does not work in the second equation.

Answer: False

3 0
2 years ago
What is √-11 in the form a+bi?
Mice21 [21]

Given:

The number is \sqrt{-11}.

To find:

The a+bi form of given number.

Solution:

We have,

\sqrt{-11}

It can be written as

\sqrt{-11}=\sqrt{-1\times 11}

\sqrt{-11}=\sqrt{-1}\times \sqrt{11}      [\because \sqrt{ab}=\sqrt{a}\sqrt{b}]

\sqrt{-11}=i\times \sqrt{11}      [\because \sqrt{-1}=i]

\sqrt{-11}=\sqrt{11}i

Here, real part is missing. So, it can be taken as 0.

\sqrt{-11}=0+\sqrt{11}i

So, a = 0 and b=\sqrt{11}.

Therefore, the a+bi form of given number is 0+\sqrt{11}i.

5 0
2 years ago
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