20 points on the line Determine whether the statement is true or false. If the statement is false, make the necessary change(s) to produce a true statement.

To solve the system below by substitution, replace y in the second equation with 7−6x.

6x−y=7

2x+y=5

This statement is true.

This statement is false. To solve the system by substitution, replace x in the second equation with 7−6x.

This statement is false. To solve the system by substitution, replace y in the first equation with 7−6x.

This statement is false. To solve the system by substitution, replace y in the second equation with 6x−7.

do you have the measurements?

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!

the arc length is found by finding the circumference of the full circle (2xpixradius) and then dividing by 4 to find just one quarter of the circle (90 degrees).

hello!

some people may think so but i don't. its just a human instinct in my opinion.

have a fantastic day! ~pooch ♥