Answer:
-7
Step-by-step explanation:
y−x=9 ⇒ y=x+9
10+2x=−2y
5+x= -y ====== replacing y with x+9
5+x= -x-9
2x= -14
x= -7
Total heads = 10
Total legs = 26
Cat = 4 legs
Birds = 2 legs
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Assumed all birds :
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Total legs = 10 x 2 = 20
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Difference in legs :
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26 - 20 = 6
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Difference in legs between the two animals:
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4 - 2 = 2
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Find number of cats :
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6 ÷ 2 = 3
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Find number of birds :
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10 - 3 = 7
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Answer: There are 3 cats and 7 birds.
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Answer:
y=4x+27
Step-by-step explanation:
If a line is parallel, it would have the same slope, so you already have that.
Now, you need the y-intercept of the second line. You already have one point, so use that point and the slope to find the y-int. What you can do (since you know you have to go up 4 and over 1, add a 1 to the -5 until you get to zero. your y-int would be 7+20 since you've gone up 5x4)
your final answer (i think) should be y=4x+27, but I could be wrong :))
Answer:
<h2>9cm and 5cm </h2>
Step-by-step explanation:
Note: The unit of the width in the question is suppose to be in cm
<em>"with length 18cm and width 10m"====>>></em> <em>"with length 18m and width 10m"</em>
so given that the dimension of the room is
<em>18mx10m </em>
This is a reduction process since we aim to transfer the dimension to paper
we are reducing the dimension by 2
and 1cm---2m
since 2m will represent 1cm
then the dimension will be
9cm and 5cm
<em> </em>
