Heather finished a race in 58.4 seconds, which was 2.6 seconds less than her practice time. Write and solve an equation to find

Answer:

A. No solution

Step-by-step explanation:

Choose 1 answer:

A. No solutions

B. Exactly one solution

C. Infinitely many solutions

Solution

Given:

4(y-30)=4y+12

Open parenthesis

4y-120=4y+12

Collect like terms

4y-4y=12+120

0=142

There is no solution to the equation, therefore, the answer is A

If there are 3 shelves 0.3m wide and there is a 0.05m gap on both sides between the shelves and the wall, all you have to do is add.

0.3 + 0.3 + 0.3 + 0.05 + 0.05 which is equal to 1.00 or C. 1

<span><span>Suppose you have a choice of 5 pizza toppings and 2 kinds of crust. To find all possible choices, multiply the number of possible toppings (5) by the number of crust choices (2); <span>5 x 2 = 10.</span> If you want to list all the possible choices, you can make an organized list or draw a tree diagram.</span></span>

Answer:

Step-by-step explanation:

2(5x + 7) = 34

10x + 14 = 34

10x = 20

x = 2

If 3 of the pennies are Canadian, then the other 12-3=9 pennies are not Canadian.  Therefore, the desired probability is 9/12, which is equal to 3/4.  B is the correct answer.