Answer:
I am only answering so the next person to answer can get brainlyiest.
Step-by-step explanation:
Have a good day!
Answer:
?? = 900
Step-by-step explanation:
Solve algebraically
let x be ball and y be cube
x + y = 100
x - y = 80
xy = ??
We can solve by elimination. Eliminate one of the variables by adding OR subtracting the entire equations. I will add.
. x + y = 100
<u>+ x - y = 80</u> y + - y = y - y = 0; The variable is eliminated
. 2x = 180 Divide both sides by 2 to isolate x
. x = 90
Substitute x = 90 into one of the equations.
x + y = 100
90 + y = 100 Isolate y by subtracting 90 from both sides
y = 100 - 90
y = 10
Find xy = ?? by substituting y for 10 and x for 90.
xy = (90)(10) = 900
Therefore the value of ?? is 900.
Answer:
602 in^2
Step-by-step explanation:
To find volume, multiply length, width, and height. In this case, it is 5, 14, and 8 3/5. I used a calculator, but if not, solve it using regular multiplication. First 5 times 14 since that is easier to get out of the way, then 8 3/5, and it is easiest to treat a fraction as a decimal when multiplying, in this case it would be 0.6. I am not going to explain how I got that since you were asking how to find volume.
Salutations!
The temperature changed from 5°C at 6 p.m. to -2°C at midnight. How much did the temperature decrease?
Lets solve this!
To find out how much the temperature is decreased, you need to subtract 5°°C from -2° C. from .
Lets form this into statements ---
Temperature at 6 PM = 5°C
Temperature at midnight = -2°C.
Temperature decreased = 5°C - 2°C = 3° C.
3°C is the temperature decreased.
Hope I helped (:
Have a great day!
Answer:
c
Step-by-step explanation:
d=rt
d/t=r
