Answer:
f(3) = -11
Step-by-step explanation:
f(3) means you sub the value that is inside into x
f(3) = -3(3) - 2
= -9 - 2
= -11
Answer:
Both are 1/2
Step-by-step explanation:
Count just the tails, that's the numerator
Count all the heads and tails, that's the denominator.
And for the 2nd fraction:
Count just the evens, that's the numerator
Count all the even and odd numbers, that's the denominator.
Answer:
it would be 20
Step-by-step explanation:
because you divide to find the unit rate like 97.50/15 and then you multiply a number to the answer you got there until those two numbers have a product of 130
Answer:
1. 3 2/3
2. 4 9/10
3. 1 27/56
4. 58 2/15
5. 11 1/24
Step-by-step explanation:
1. To find the answer, add 3 1/6 and 5 9/10. First change them into improper fractions. 5 9/10 is 59/10 and 3 1/6 is 19/6. Now, you have to make the denominator (bottom number) the same number for both fractions. To do this you must find a LCM for both the number (10, 6) a LCM for these numbers is 30. Now to change the denominator to this you must times the numerator and denominator by the number needed to get the LCM for the denominator.
So 6 x 5 = 30 and 3 x 10 = 30.
19/6 x 5 = 95/30 and 59/10 x 3 = 177/30
Now add the fractions:
This equals 272/30
Simplify:
Now take 12 5/6 and turn it into a improper fraction: 77/6
Now again, you have to make the denominator to 30
77/6 x 5 = 385/30
Now subtract 385/30 - 272/30
This equals 113/30
Now turn this back into a mixed fraction:
3 23/30
The answer is 3 23/30
This process is basically the same for all the other questions.
Answer:
4. (a) = 12 m
(b) = 27 cm
(c) = 24 mm
(d) = 18 km
(e) = 10 m
(f) = 36 cm
Step-by-step explanation:
Perimeter is sum the distance round a figure.
if a shape has those, they signify that the shape has two side that are equal
a) 4 + 4 + 2 + 2 = 12. The top part is equal to the bottom part signified by those two lines. And the left is equal to the right .
b) 10 + 10 + 7 = 27
c) 5 + 5 + 8 + 6 = 24
d) 3 + 3 + 6 + 6 = 18
e) 2.5 + 2.5 + 2.5 + 2.5 = 10
f) 12 + 7 + 7 + 5 + 5 = 36
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