Thursday time 00:0970 00:0 780 Matt Tom Two boys timed their race from the classroom door to the end of the building. 1. The school record is 6:90. Tom is still seconds behind the record. 2. The time difference between Matt and Tom is ___ seconds.

this answer is 390 we need to divided 780÷2

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb

n=9

step-by-step explanation:

7 times a number = 7n

decreased by 13 = 7n-13

same as is =

5 times the number = 5n

increased by 5 = 5n+5

7n-13 = 5n+5

2n=18

n=9