First off, you can multiply a 2-digit number by 2 and just add 0 to the product. For instance: 12 x 20
Number line: two jumps of number 12.
So : 12 x 2 = 24
Finally, 12 x 20 = 240
Hope this helped.
Answer:
B. Same distance and same direction
Step-by-step explanation:
The points have to move together while maintaining the same shape.
Using the Pythagorean theorem we have (hypotenuse)^2 = (base)^2 +(side)^2
so (side)^2 =(20)^2- (8)^2 =336 and now side is square root of 336 = 18.33
answer is 18..33
Answer:
This skill will come in handy when working with word problems or real life situations.
Answer:
t=2
j=1
Step-by-step explanation:
3 tacos and a juice is $7
3t+j=7
4 tacos and 2 juices is $10
4t+2j=10
We have a simultaneous equation. It can be solved either by substitution method or Elimination method. For the purpose of this question, the elimination method will be used
3t+j=7 Equation 1
4t+2j=10 Equation 2
To eliminate j, we multiply Equation 1 by 2, the coefficient of j in equation 2, so that in both equations, j can have the same coefficient.
2(3t+j=7)
6t+2j=14 Equation 3
We now have
4t+2j=10 Equation 2
6t+2j=14 Equation 3
We subtract equation 2 from equation 3, to eliminate j
6t-4t=2t
2j-2j=0
14-10=4
We have 2t=4
Divide both sides by 2
2t/2=4/2
t=4/2
t=2
Substitute t for 2 in equation 1, to get j
3t+j=7
3(2)+j=7
6+j=7
j=7-6
j=1
One taco cost $2 while 1 juice cost $2