Ana saw 7 kitten and 9 chicks at the pet store.
Step-by-step explanation:
Given,
Number of heads = 16
Number of legs = 46
A chick has 2 legs and a kitten has 4.
Let,
x represent the number of kitten and y represent the number of chicks.
According to given statement;
x+y=16 Eqn 1
4x+2y=46 Eqn 2
Multiplying Eqn 1 by 4
Subtracting Eqn 2 from Eqn 3
Dividing both sides by 2
Putting y=9 in Eqn 1
Ana saw 7 kitten and 9 chicks at the pet store.
Keywords: linear equation, elimination method
Learn more about elimination method at:
#LearnwithBrainly
-1 is correct answer because
a= -2
b= 5 then
(-2^2-5)^3
(4-5)^3
(-1)^3
-1
Answer:
B. 97%
Step-by-step explanation:
20 students is -2 standard deviations away from the mean
35 is +3 standard deviations away from the mean
100 - 2.4 = 97.6
(2.4 is amount of data we are not using)
please refer to the standard deviation graph attached :)
Answer:
222 = score in 2nd game
Step-by-step explanation:
Let x = score in 1st game
3/4(x) + 30 = score in 2nd game
x + 3/4(x) + 30 = 478 Multiply thru by 4 to eliminate the fraction
4x + 3x + 120 = 1912
7x + 120 = 1912
7x = 1792
x = 256
3/4(x) + 30 = 3/4(256) + 30
= 192 + 30
222 = score in 2nd game
Check: 222 + 256 = 478
Yes I work this out so yea you divide idk
