3t + 2b = 95*
t + b = 40
t + b - b = 40 - b
t = 40-b Substitute this in the formula marked *
3(40-b) + 2b = 95
120-3b+2b=95
120-b= 95
120-120-b=95-120
-b= -25
-1b/-1=-25/-1
b= 25
Plug b= 25 into t + b = 40
t + 25 =40
t + 25 -25 = 40-25
t = 15
15 tricycles and 25 bicycles
This is true.
Example:
= 8/9 ÷ 7/3
to divide fractions, multiply by the reciprocal/inverse of 7/3
= 8/9 * 3/7
= (8*3)/(9*7)
multiply numerators; multiply denominators
= 24/63
simplify
= 8/21
ANSWER: This is (A) true
Hope this helps! :)
Answer:
10
Step-by-step explanation:
The 7 in 27,459 is in the <em>thousands</em> place.
The 7 in 40,735 is in the <em>hundreds</em> place.
Any digit in the thousands place has 10 times the value of the same digit in the hundreds place. (The multiplier is 1000, instead of 100.)
_____
In the base-10 number system, each digit location has 10 times the value of the location to its right. The value is determined by the place the digit occupies in the number. That is why it is called a place-value number system.
The answer to this question would be: 2*52! -1
In this case, the card is either picked up by Naoko or they are not picked up. That means there are two possible outcomes for each card. For 52 card, the possibility should be:
2*52!
If Naoko needs to pick at least one, the possibilities become one less because "no card picked" possibility is ruled out
Answer:
B: 24
(Sorry if this is wrong i tried my best)
