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emmasim [6.3K]
3 years ago
9

Mark is 3 less than 4 times as old as tim. Together their ages total 42. How old is mark

Mathematics
1 answer:
lorasvet [3.4K]3 years ago
7 0

Answer:

30

Step-by-step explanation:

3*4=12

42-12=30

=30

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Which expression is equivalent to (s - 12) / 2
lara31 [8.8K]

Answer:

s/2-6

Step-by-step explanation:

(happy to help)

3 0
3 years ago
You can use an arithmetic operator to return the modulus of a calculation, which is the ____ when you divide one number by anoth
balandron [24]

Answer:

<u>Residue</u>

Step-by-step explanation:

Let a and b be integers. We define a mod b to be the residue of dividing a by b. For example, if a evenly divides b, then a mod b=0, 20 mod 6= 2. The modulus operator is widely used in programming, and it is convenient when a and b are large numbers.

a mod b is always a nonnegative integer. In fact, 0≤ a mod b≤ |b-1| by the division algorithm. a and b can also be negative integers. Since 8=-(-5)+3 then 8 mod -5= 3.

As a final example, some known properties can be rewritten in terms of mod. a mod 2=0 if and only if a is even. a mod 2=1 if and only if a is odd.

7 0
2 years ago
A population of 1200 leopards decreases by 12% per year. How many leopards will there be in the population after 6 years? Round
frez [133]
12% of 1200 is 144, so subtract that. you get 1056. 12% of that is 126.72, so you subtract that. you get 929.28. 12% of that is 111.5136 and you subtract that. and so on and so forth. the answer would be 557.
3 0
2 years ago
What is −10−f=−6f+10
sammy [17]
-10-f=-6f+10
-f+6f=10+10
5f=20
F=4
4 0
2 years ago
Help me find area please asap​
mart [117]
You have to find the area of both the square and rectangle. use the formula A=wl
square = 3x3 = 9
rectangle = 10x3 = 30
area= 39 (i think)
7 0
3 years ago
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