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hoa [83]
3 years ago
14

What’s y of 2x+3y=7.20 and 4x+2y=8.80

Mathematics
1 answer:
Arturiano [62]3 years ago
7 0

Answer:

(x,y)=(3/2,7/5)

Step-by-step explanation:

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If 70% is £14 what is the full price
Veseljchak [2.6K]
70℅ = 14
100 = X

70X = 1400

X = 1400/70

X = 20

20 Euros is the full price
6 0
3 years ago
Adding/Subtracting rational expressions
Leona [35]
7]
 6/(x-1)-5x/4
subtracting the above we put the fraction under the same denominator:
 6/(x-1)-5x/4
multiplying the denominators we get:
4(x-1)
thus subtracting we get:
6/(x-1)-5x/4
=(4*6-5x(x-1))/[4(x-1)]
=[24-5x^2+5x]/(4x-4)
Answer:
(-5x^2+5x+24)/(4x-4)


9]
3/(x+7)+4/(x-8)
the common denominator is:
(x+7)*(x-8)=(x+7)(x-8)
thus adding the fractions we put them under the same denominator as follows:
[3(x-8)+4(x+7)]/[(x+7)(x-8)]
=[3x-24+4x+28]/[(x+7)(x-8)]
=(7x+4)/[(x+7)(x-8)]

5 0
3 years ago
Ini apa we jawabannya pelasee​
kupik [55]

Answer:

<h3></h3><h2><u>kualitas terjemahannya mungkin tidak bagus. Jadi lihat 2 baris terakhir jika Anda tidak mengerti.</u></h2>

Jadi jumlah derajat tidak masalah. Mereka masih akan menempuh jarak yang sama.

Karena Anda mengatakan bahwa ekspres Marina berjalan pada 40 km / jam dan kami melakukan 2 jam. 40 * 2 = 80 km. Untuk Dumai Anda melakukan hal yang sama, 48 * 2 = 96.

Marina berjalan sejauh 80 km

Dumai berjarak 96 km

8 0
3 years ago
F(x) = 3x+2<br><br> What is f(5)?
Ksju [112]

F(5)= 3.(5)+2=15+2=17

Another example: F(0)=3.(0)+2=0+2=2

You just replace the value in the two sides.

4 0
2 years ago
Graph the solution set of the inequality 1/2y &lt; -3
grandymaker [24]

Answer:

y  <  − 6 ?

Step-by-step explanation:

Its a straight line on graph so it's linear

3 0
3 years ago
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