Answer:
Acute angles measure less than 90 degrees. Right angles measure 90 degrees. Obtuse angles measure more than 90 degrees.
Step-by-step explanation:
we are given
Jim can lay bricks for a fireplace and chimney in 5 days
Jim's 1 day work is

we are given
With his father's help he can build it in 2 days
so, both can do same work in 2 days
so, both's 1 day work is

Let's assume
his father to build it alone in x days
his father 1 day work is

so, both's 1 days work is
so, we can set it to 1/2
we get
now, we can solve for x
now, we can cross multiply
now, we can solve for x

so,
his father to build it alone is
............Answer
Answer:
-0.5
Step-by-step explanation:
In the picture above.
I hope that it's a clear solution.
Answer:
A) Cereal brand A
B) There is no table.
Step-by-step explanation:
A) divide each cereal price by the amount of ounces. Brand A is $0.13888 (rounds to $0.14). B is $0.14583 (rounds to $0.15) So, since cereal band A is less cost per ounce, its cheaper
B) This question cannot be answered, since there is no table.
Answer:
<h2>
( 2 , - 3 )</h2>
Step-by-step explanation:
Using elimination method:
2x - y = 7
3x + y = 3
--------------
5x = 10
Divide both sides of the equation by 5

Calculate

Now, substitute the given value of X in the equation
3x + y = 3

Multiply the numbers

Move constant to R.H.S and change it's sign

Calculate

The possible solution of this system is the ordered pair ( x , y )
<h3>
( x , y ) = ( 2 , -3 )</h3>
---------------------------------------------------------------------
Check if the given ordered pair is the solution of the system of equation


Simplify the equalities


Since all of the equalities are true, the ordered pair is the solution of the system
<h3>
( x , y ) = ( 2 , - 3 )</h3>
Hope this helps..
Best regards!!