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Mrac [35]
3 years ago
7

Simplify the expression (5)2. 25 -10 -25 10

Mathematics
2 answers:
Olegator [25]3 years ago
8 0

Answer:

<h2><em><u>10</u></em></h2>

Step-by-step explanation:

<em><u>Given</u></em><em><u> </u></em><em><u>here</u></em><em><u>, </u></em>

(5)2

= 5 × 2.

= <em><u>10 (Ans)</u></em><em><u> </u></em>

grin007 [14]3 years ago
5 0

Answer:

10

Step-by-step explanation:

5 (2) is the same as 5 × 2 which equals 10

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If 2/x+ 3/y =13 and 5/x- 4/y = -2, then x+y equals (a) 1/6 (b) -1/6 (c) 5/6 (d) -5/6
KonstantinChe [14]

Answer:

c

Step-by-step explanation:

Let 1/x  = a &

1/y = b

So, now the equation:

2a +3b  = 13   --------------------(i)

5a - 4b  = -2  --------------------(ii)

To eliminate a, Multiply equation (i) by 5 and multiply (ii) by (-2)

(i)*5             10a  + 15b = 65

(ii)*(-2)    <u>    - 10a + 8b  = 4</u>      ( Now add, a will be eliminated}

                            23b = 69

b= 69/23

b = 3

Plug in the value of b in equation (i)

2a + 3*3 = 13

2a + 9 = 13

2a  = 13 - 9

2a = 4

a= 4/2

a = 2  

Now a = 1/x   ------>x = 1/a = 1/2

b = 1/y ----------->y = 1/b = 1/3

x+y=\frac{1}{2}+\frac{1}{3}\\\\=\frac{1*3}{2*3}+\frac{1*2}{3*2}\\\\=\frac{3}{6}+\frac{2}{6}\\\\=\frac{5}{6}

3 0
3 years ago
Calculate the slope between the points: (4, -9) and (5, 1)
Ludmilka [50]
The answer is (1, 10)
6 0
3 years ago
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One palm tree grew 85 inches in 5 years and a queen palm tree grew 96 inches in 8 inches which tree grew faster explain
Leviafan [203]

Answer:

The queen palm tree

Step-by-step explanation:

I think you were saying years not inches but pretty much if you divide 85 divided by 5 you get 17 but if you divided 86 divided by 8 you get 12 so 12 is less than 17.

4 0
3 years ago
After driving 378 miles, they have used 14 gallons of gas. They have 243 miles left to drive on the trip. How much gas will they
dsp73

Answer:

9 gallon of gas

Step-by-step explanation:

When distance covered is 378 miles, they have used 14 gallons of gas

We need to find how much gas will they need to finish the trip if 243 miles left to drive on the trip.

378 miles = 14 gallons of gas

For 1 mile,

1 gallon of gas is used for \dfrac{14}{378}\ \text{gallon of gas is used}

For 243 miles,

= \dfrac{14}{378}\times 243\ \text{miles}\\\\=9\ \text{gallon of gas is used}

Hence, for 243 miles 9 gallon of gas is used.

6 0
3 years ago
3x^3(4x^4)=?<br> i need this plz
sladkih [1.3K]

Answer:

12 x^{7}

Step-by-step explanation:

3 0
3 years ago
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