Question called "equation practice with angles". this question is confusing

If you review your parallel lines and vertical angles, you'll discover that A and B have to be equal.

So 8x + 6 = 4x + 38 .

Subtract 6 from each side;

8x = 4x + 32

Subtract 4x from each side:

4x = 32

Divide each side by 4 :

X = 8

Angle B is 4x + 38. That's 70 degrees.

Angle A is 8x + 6. That's 70 degrees too.

0.16 or 16%

step-by-step explanation:

lets take a coin for example.

if you toss it twice, it has a 1/4 chance of landing on heads both times because 1/2 * 1/2 is 1/4.

with the cards, the chance of picking dog is 0.4. having two people pick one is like picking a card twice in a row. so 0.4 * 0.4 is 0.16, or 16%

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!