Answer:
11
Step-by-step explanation:
If the number you're dividing by has a decimal, move the decimal point all the way to the right counting the number of places you've moved it to. Then move the decimal point in the number you're dividing the same number of places to the right.
a)
X + Y = 5
<u>2X - Y = 9 </u>
X + 2X + Y - Y = 5 + 9
3X = 14
<h3>X = 14/3</h3>
Para Y, basta substituir o valor de X em qualquer uma das 2 equacoes - arbitrariamente. Escolhendo a primeira:
X+ Y = 5
14/3 + Y = 5
Y = 5 - 14/3
<h3>Y = 1/3</h3>
.........................
b)
3X - Y = 10
<u>X + Y = 18 </u>
3X + X - Y + Y = 10 + 18
4X = 28
<h3>X = 7</h3>
Para Y, basta substituir o valor de X em qualquer uma das 2 equacoes - arbitrariamente. Escolhendo a segunda:
X + Y = 18
7 + Y = 18
Y = 18 - 7
<h3>Y = 11</h3>
Answer:
You'd find what's in the middle of 48 and 24
Step-by-step explanation:
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Solutions
4 hr = 20 dollars
5 hr = 25 dollars
6 hr = 30 dollars
7 hr = 35 dollars
8 hr = 40 dollars
9 hr = 45 dollars
10 hr = 50 <span>dollars
To solve the problem you start at 4 ( Hours) and add 1 hour to it and the cost starts at 20 and add 5 to it. </span>
There are 9 toy trucks in each group.
27 divided by 3 is 9. Therefore when you divide the trucks up in EQUAL groups the answer has to be 9.